When getting started with Prefect 2.0, I'm getting an error "MissingContextError: No profile context found"

simon_mackenzie · March 20, 2022, 7:33pm

I have installed prefect 2. I run “prefect orion start” and can view the dashboard. I try “prefect storage create” and I get “httpx.HTTPStatusError: Server error ‘500 Internal Server Error’ for url ‘http://127.0.0.1:4200/api/block_specs/filter’
For more information check: 500 Internal Server Error - HTTP Status Code Glossary - WebFX”. The server terminal shows "“no profile context found”.

I have tried “prefect context create” to create a new profile. Still getting same error.

anna_geller · March 21, 2022, 12:55am

Hi @simon_mackenzie, so great to see you tried out Prefect 2.0!

The easiest way to troubleshoot this local issue is by starting from scratch by removing the SQLite DB and resetting the DB:

rm ~/.prefect/orion.db
prefect orion database reset -y
prefect orion start

Then, you should be able to create storage:

prefect storage create

You need to pick one e.g. S3 and set a default storage, either via CLI instructions or by using the ID you get as a result of the command above:

prefect storage set-default STORAGE_ID

Then, you should be able to create a work-queue, start an agent and run scheduled deployments, e.g.

prefect work-queue create -t local local
# this returns WORK_QUEUE_ID

# then run:
prefect agent start WORK_QUEUE_ID

Then you can build an example flow with a DeploymentSpec:

# work_queue_test_flow.py
import platform
from prefect import task, flow
from prefect import get_run_logger


@task
def say_hi():
    logger = get_run_logger()
    logger.info("Hello world!")


@task
def print_platform_info():
    logger = get_run_logger()
    logger.info(
        "Platform information: IP = %s, Python = %s, EC2 instance type = %s, OS Version = %s",
        platform.node(),
        platform.python_version(),
        platform.platform(),
        platform.version(),
    )


@flow
def work_queue_test_flow():
    hi = say_hi()
    print_platform_info(wait_for=[hi])


from prefect.deployments import DeploymentSpec

DeploymentSpec(
    name="hello_world_local",
    flow=work_queue_test_flow,  # flow_location is inferred from flow
    tags=["local"],
)

if __name__ == "__main__":
    flow_run_state = work_queue_test_flow()

Run this in another terminal from the same directory as the above flow file:

prefect deployment create work_queue_test_flow.py

Now, when you go to Orion UI and run a deployment, it will run on the agent.

Running flows locally

Note that if you just run the same flow as above locally, it will already show in the UI because deployments are only required for scheduled flow runs and generally backend triggered flow runs that run on some agents. For local testing, you can just do:

python work_queue_test_flow.py

And the results would show in the UI!

More resources

Some resources that may help:

https://orion-docs.prefect.io/concepts/deployments/

Troubleshooting

If you need more help troubleshooting, please share the output of:

prefect version

simon_mackenzie · March 22, 2022, 10:57am

This does not work for me. I have deleted the database and restarted orion. As soon as I say prefect storage create I get an error. Below is .prefect/profiles.toml; version; traceback from server. I am running on WSL2. Do I have to setup some kind of profile file?

active = “default”

[profiles.default]
PREFECT_API_URL = “http://127.0.0.1:4200/api”

#########################################

(base) ~$ prefect version
Version: 2.0b2
API version: 0.3.0
Python version: 3.8.8
Git commit: b2a048c2
Built: Thu, Mar 17, 2022 2:24 PM
OS/Arch: linux/x86_64
Profile: default
Server type: hosted

#######################################################

10:25:07.018 | ERROR | prefect.orion - Encountered exception in request:
Traceback (most recent call last):
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/middleware/errors.py”, line 159, in call
await self.app(scope, receive, _send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/exceptions.py”, line 82, in call
raise exc
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/exceptions.py”, line 71, in call
await self.app(scope, receive, sender)
File “/home/simon/anaconda3/lib/python3.8/site-packages/fastapi/middleware/asyncexitstack.py”, line 21, in call
raise e
File “/home/simon/anaconda3/lib/python3.8/site-packages/fastapi/middleware/asyncexitstack.py”, line 18, in call
await self.app(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/routing.py”, line 656, in call
await route.handle(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/routing.py”, line 259, in handle
await self.app(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/routing.py”, line 61, in app
response = await func(request)
File “/home/simon/anaconda3/lib/python3.8/site-packages/prefect/orion/utilities/server.py”, line 87, in handle_response_scoped_depends
response = await default_handler(request)
File “/home/simon/anaconda3/lib/python3.8/site-packages/fastapi/routing.py”, line 217, in app
solved_result = await solve_dependencies(
File “/home/simon/anaconda3/lib/python3.8/site-packages/fastapi/dependencies/utils.py”, line 529, in solve_dependencies
solved = await run_in_threadpool(call, **sub_values)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/concurrency.py”, line 39, in run_in_threadpool
return await anyio.to_thread.run_sync(func, *args)
File “/home/simon/anaconda3/lib/python3.8/site-packages/anyio/to_thread.py”, line 28, in run_sync
return await get_asynclib().run_sync_in_worker_thread(func, *args, cancellable=cancellable,
File “/home/simon/anaconda3/lib/python3.8/site-packages/anyio/_backends/_asyncio.py”, line 818, in run_sync_in_worker_thread
return await future
File “/home/simon/anaconda3/lib/python3.8/site-packages/anyio/_backends/_asyncio.py”, line 754, in run
result = context.run(func, *args)
File “/home/simon/anaconda3/lib/python3.8/site-packages/prefect/orion/api/dependencies.py”, line 101, in get_limit
default_limit = PREFECT_ORION_API_DEFAULT_LIMIT.value()
File “/home/simon/anaconda3/lib/python3.8/site-packages/prefect/settings.py”, line 49, in value
return self.value_from(get_current_settings())
File “/home/simon/anaconda3/lib/python3.8/site-packages/prefect/settings.py”, line 533, in get_current_settings
return get_profile_context().settings
File “/home/simon/anaconda3/lib/python3.8/site-packages/prefect/context.py”, line 282, in get_profile_context
raise MissingContextError(“No profile context found.”)
prefect.exceptions.MissingContextError: No profile context found.
10:25:07.021 | ERROR | uvicorn.error - Exception in ASGI application
Traceback (most recent call last):
File “/home/simon/anaconda3/lib/python3.8/site-packages/uvicorn/protocols/http/httptools_impl.py”, line 372, in run_asgi
result = await app(self.scope, self.receive, self.send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/uvicorn/middleware/proxy_headers.py”, line 75, in call
return await self.app(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/uvicorn/middleware/message_logger.py”, line 82, in call
raise exc from None
File “/home/simon/anaconda3/lib/python3.8/site-packages/uvicorn/middleware/message_logger.py”, line 78, in call
await self.app(scope, inner_receive, inner_send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/fastapi/applications.py”, line 261, in call
await super().call(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/applications.py”, line 112, in call
await self.middleware_stack(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/middleware/errors.py”, line 181, in call
raise exc
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/middleware/errors.py”, line 159, in call
await self.app(scope, receive, _send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/middleware/cors.py”, line 84, in call
await self.app(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/exceptions.py”, line 82, in call
raise exc
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/exceptions.py”, line 71, in call
await self.app(scope, receive, sender)
File “/home/simon/anaconda3/lib/python3.8/site-packages/fastapi/middleware/asyncexitstack.py”, line 21, in call
raise e
File “/home/simon/anaconda3/lib/python3.8/site-packages/fastapi/middleware/asyncexitstack.py”, line 18, in call
await self.app(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/routing.py”, line 656, in call
await route.handle(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/routing.py”, line 408, in handle
await self.app(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/fastapi/applications.py”, line 261, in call
await super().call(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/applications.py”, line 112, in call
await self.middleware_stack(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/middleware/errors.py”, line 181, in call
raise exc
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/middleware/errors.py”, line 159, in call
await self.app(scope, receive, _send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/exceptions.py”, line 82, in call
raise exc
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/exceptions.py”, line 71, in call
await self.app(scope, receive, sender)
File “/home/simon/anaconda3/lib/python3.8/site-packages/fastapi/middleware/asyncexitstack.py”, line 21, in call
raise e
File “/home/simon/anaconda3/lib/python3.8/site-packages/fastapi/middleware/asyncexitstack.py”, line 18, in call
await self.app(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/routing.py”, line 656, in call
await route.handle(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/routing.py”, line 259, in handle
await self.app(scope, receive, send)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/routing.py”, line 61, in app
response = await func(request)
File “/home/simon/anaconda3/lib/python3.8/site-packages/prefect/orion/utilities/server.py”, line 87, in handle_response_scoped_depends
response = await default_handler(request)
File “/home/simon/anaconda3/lib/python3.8/site-packages/fastapi/routing.py”, line 217, in app
solved_result = await solve_dependencies(
File “/home/simon/anaconda3/lib/python3.8/site-packages/fastapi/dependencies/utils.py”, line 529, in solve_dependencies
solved = await run_in_threadpool(call, **sub_values)
File “/home/simon/anaconda3/lib/python3.8/site-packages/starlette/concurrency.py”, line 39, in run_in_threadpool
return await anyio.to_thread.run_sync(func, *args)
File “/home/simon/anaconda3/lib/python3.8/site-packages/anyio/to_thread.py”, line 28, in run_sync
return await get_asynclib().run_sync_in_worker_thread(func, *args, cancellable=cancellable,
File “/home/simon/anaconda3/lib/python3.8/site-packages/anyio/_backends/_asyncio.py”, line 818, in run_sync_in_worker_thread
return await future
File “/home/simon/anaconda3/lib/python3.8/site-packages/anyio/_backends/_asyncio.py”, line 754, in run
result = context.run(func, *args)
File “/home/simon/anaconda3/lib/python3.8/site-packages/prefect/orion/api/dependencies.py”, line 101, in get_limit
default_limit = PREFECT_ORION_API_DEFAULT_LIMIT.value()
File “/home/simon/anaconda3/lib/python3.8/site-packages/prefect/settings.py”, line 49, in value
return self.value_from(get_current_settings())
File “/home/simon/anaconda3/lib/python3.8/site-packages/prefect/settings.py”, line 533, in get_current_settings
return get_profile_context().settings
File “/home/simon/anaconda3/lib/python3.8/site-packages/prefect/context.py”, line 282, in get_profile_context
raise MissingContextError(“No profile context found.”)
prefect.exceptions.MissingContextError: No profile context found.

simon_mackenzie · March 22, 2022, 11:15am

Found similar problem logged as an issue in github.

github.com/PrefectHQ/prefect

Orion: Running Orion flows from a Jupyter notebook throws MissingContextError

opened 09:15PM - 11 Mar 22 UTC

anna-geller

# Problem The user keeps getting the error: "MissingContextError: No profile …context found." when running Prefect from a Jupyter notebook. I couldn't reproduce so far but perhaps someone else can reproduce the same error or give some pointers why this may be occurring. # Slack transcript [**View in #prefect-community on Slack**](https://slack.com/archives/CL09KU1K7/p1645796525759529) ![Luis_Aguirre] **@Luis_Aguirre:** I'm trying to run a simple flow on a jupyter notebook (my goal is to run flows on a jupyter kernel) and getting some errors ``` File ~/anaconda3/envs/optimus-py3.8/lib/python3.8/site-packages/prefect/flows.py:249, in Flow.__call__(self, *args, **kwargs) 246 # Convert the call args/kwargs to a parameter dict 247 parameters = get_call_parameters(self.fn, args, kwargs) --> 249 return enter_flow_run_engine_from_flow_call(self, parameters) File ~/anaconda3/envs/optimus-py3.8/lib/python3.8/site-packages/prefect/engine.py:108, in enter_flow_run_engine_from_flow_call(flow, parameters) 105 return portal.call(begin_run) 106 else: 107 # An event loop is not running so we will create one --> 108 return anyio.run(begin_run) 110 # Sync subflow run 111 if not parent_flow_run_context.flow.isasync: File ~/anaconda3/envs/optimus-py3.8/lib/python3.8/site-packages/anyio/_core/_eventloop.py:56, in run(func, backend, backend_options, *args) 54 try: 55 backend_options = backend_options or {} ---> 56 return asynclib.run(func, *args, **backend_options) # type: ignore 57 finally: 58 if token: File ~/anaconda3/envs/optimus-py3.8/lib/python3.8/site-packages/anyio/_backends/_asyncio.py:233, in run(func, debug, use_uvloop, policy, *args) 230 del _task_states[task] 232 _maybe_set_event_loop_policy(policy, use_uvloop) --> 233 return native_run(wrapper(), debug=debug) File ~/anaconda3/envs/optimus-py3.8/lib/python3.8/asyncio/runners.py:33, in run(main, debug) 9 """Execute the coroutine and return the result. 10 11 This function runs the passed coroutine, taking care of (...) 30 asyncio.run(main()) 31 """ 32 if events._get_running_loop() is not None: ---> 33 raise RuntimeError( 34 "asyncio.run() cannot be called from a running event loop") 36 if not coroutines.iscoroutine(main): 37 raise ValueError("a coroutine was expected, got {!r}".format(main)) RuntimeError: asyncio.run() cannot be called from a running event loop ``` on `2.0a11` ``` File ~/anaconda3/envs/optimus-py3.8/lib/python3.8/site-packages/prefect/flows.py:249, in Flow.__call__(self, *args, **kwargs) 246 # Convert the call args/kwargs to a parameter dict 247 parameters = get_call_parameters(self.fn, args, kwargs) --> 249 return enter_flow_run_engine_from_flow_call(self, parameters) File ~/anaconda3/envs/optimus-py3.8/lib/python3.8/site-packages/prefect/engine.py:91, in enter_flow_run_engine_from_flow_call(flow, parameters) 88 parent_flow_run_context = FlowRunContext.get() 89 is_subflow_run = parent_flow_run_context is not None ---> 91 profile = prefect.context.get_profile_context() 92 profile.initialize() 94 begin_run = partial( 95 create_and_begin_subflow_run if is_subflow_run else create_then_begin_flow_run, 96 flow=flow, 97 parameters=parameters, 98 ) File ~/anaconda3/envs/optimus-py3.8/lib/python3.8/site-packages/prefect/context.py:282, in get_profile_context() 279 profile_ctx = ProfileContext.get() 281 if not profile_ctx: --> 282 raise MissingContextError("No profile context found.") 284 return profile_ctx MissingContextError: No profile context found. ``` on `2.0a12` ![Anna_Geller] **@Anna_Geller:** Ok, I was trying to reproduce. I had existing conda env with Orion 2.0a12 and I added jupyterlab: ``` conda install -c conda-forge jupyterlab ``` I started it from the same conda virtual env: ``` jupyter lab ``` Then I tried running the repo trending check sample flow: ``` import requests from prefect import task, flow, get_run_logger @task def extract_url_content(url, params=None): return requests.get(url, params=params).content @task def check_if_trending(trending_page, repo="prefect"): logger = get_run_logger() is_trending = repo.encode() in trending_page is_phrase = "Nope" if not is_trending else "Yes!" <http://logger.info|logger.info>("Is %s tranding? %s", repo, is_phrase) return is_trending @flow(name="repo_trending_check") def repo_trending_check( repo="prefect", url="<https://github.com/trending/python>", window="daily" ): content = extract_url_content(url, params={"since": window}) return check_if_trending(content, repo) repo_trending_check() ``` And it seems to be working fine. Did you run some async flows? Because async is a bit more complicated due to event loop, so for async flows, it may be easier to start it from the terminal. But anyways, curious to hear more about your use case and see if you can replicate the same setup that worked for me - see the image: ![image](https://user-images.githubusercontent.com/86264395/157967115-120ab0c5-1cc2-4624-a368-b2e73c33e363.png) to be thorough, I should have replicated on 3.8, but my venv was 3.9 (it shouldn't matter but want to note that) ![Luis_Aguirre] **@Luis_Aguirre:** This is the version of notebook I'm using: About Jupyter Notebook Server Information: You are using Jupyter notebook. The version of the notebook server is: **6.4.6** The server is running on this version of Python: ``` Python 3.8.10 (default, May 19 2021, 18:05:58) [GCC 7.3.0] ``` Current Kernel Information: ``` Python 3.8.10 (default, May 19 2021, 18:05:58) Type 'copyright', 'credits' or 'license' for more information IPython 8.0.1 -- An enhanced Interactive Python. Type '?' for help. ``` Tried it on Jupyter Lab and had the same issue: Jupyter Lab: Version 3.2.9 ``` jupyter-client 7.1.0 jupyter-core 4.9.1 jupyter-kernel-gateway 2.5.1 jupyter-server 1.13.1 jupyter-server-proxy 3.2.0 jupyterlab 3.2.9 jupyterlab-pygments 0.1.2 jupyterlab-server 2.10.3 jupyterlab-widgets 1.0.0 ``` ![image](https://user-images.githubusercontent.com/86264395/157967143-01cfbcfb-adb1-4fb1-97cf-5fd66d021c8f.png) ![Anna_Geller] **@Anna_Geller:** how did you install Orion and Jupyter lab? did you use pip for both? really weird because I also used conda and it worked - I'm on MacOS - are you on ubuntu? can you try deleting your Orion DB file and restart Orion and try again? Orion db is located in your ~/.prefect/orion.db Also, can you restart your Jupyter kernel before starting this again? sometimes restarting jupyter fixes such issues ![Luis_Aguirre] **@Luis_Aguirre:** I'm on a ubuntu server, just uninstalled and installed jupyter and prefect ``` Python 3.8.10 jupyter-client 7.1.2 jupyter-core 4.9.2 jupyter-server 1.13.5 jupyter-server-proxy 3.2.1 jupyterlab 3.2.9 jupyterlab-pygments 0.1.2 jupyterlab-server 2.10.3 vaex-jupyter 0.6.0 prefect 2.0a11 async-generator 1.10 async-timeout 3.0.1 asyncpg 0.25.0 ipython 8.0.1 ``` Even a freshly started jupyter kernel raises the same error I'm on Ubuntu 18.04.5 LTS (Bionic Beaver) ![Anna_Geller] **@Anna_Geller:** can you share the exact commands you used to install those packages and create a virtual environment? I want to know e.g. whether you used pip or conda etc. Every detail may potentially help reproduce the issue. Also, did the error occur with the exact same code I shared or did you change it to async flow and async tasks? ![Luis_Aguirre] **@Luis_Aguirre:** Used conda to install jupyter and pip to install prefect, will create a new environment to record the exact commands. The error occurs with the exact same code you shared. ``` conda create --name op python=3.8 conda activate op conda install -c conda-forge jupyterlab pip install -U "prefect==2.0a11" jupyter lab --allow-root --ip=0.0.0.0 ``` ![Anna_Geller] **@Anna_Geller:** Thanks for a thorough check! Can you try this? ``` conda create --name op python=3.9 conda activate op pip install -U "prefect>=2.0a12" conda install -c conda-forge jupyterlab jupyter lab # use default settings instead of this: --allow-root --ip=0.0.0.0 # in a separate terminal window: conda activate op prefect orion start ``` ![Luis_Aguirre] **@Luis_Aguirre:** ``` --------------------------------------------------------------------------- RuntimeError Traceback (most recent call last) Input In [1], in <module> 26 content = extract_url_content(url, params={"since": window}) 27 return check_if_trending(content, repo) ---> 30 repo_trending_check() File /opt/miniconda3/envs/op/lib/python3.9/site-packages/prefect/flows.py:249, in Flow.__call__(self, *args, **kwargs) 246 # Convert the call args/kwargs to a parameter dict 247 parameters = get_call_parameters(self.fn, args, kwargs) --> 249 return enter_flow_run_engine_from_flow_call(self, parameters) File /opt/miniconda3/envs/op/lib/python3.9/site-packages/prefect/engine.py:113, in enter_flow_run_engine_from_flow_call(flow, parameters) 110 return portal.call(begin_run) 111 else: 112 # An event loop is not running so we will create one --> 113 return anyio.run(begin_run) 115 # Sync subflow run 116 if not parent_flow_run_context.flow.isasync: File /opt/miniconda3/envs/op/lib/python3.9/site-packages/anyio/_core/_eventloop.py:56, in run(func, backend, backend_options, *args) 54 try: 55 backend_options = backend_options or {} ---> 56 return asynclib.run(func, *args, **backend_options) 57 finally: 58 if token: File /opt/miniconda3/envs/op/lib/python3.9/site-packages/anyio/_backends/_asyncio.py:233, in run(func, debug, use_uvloop, policy, *args) 230 del _task_states[task] 232 _maybe_set_event_loop_policy(policy, use_uvloop) --> 233 return native_run(wrapper(), debug=debug) File /opt/miniconda3/envs/op/lib/python3.9/asyncio/runners.py:33, in run(main, debug) 9 """Execute the coroutine and return the result. 10 11 This function runs the passed coroutine, taking care of (...) 30 asyncio.run(main()) 31 """ 32 if events._get_running_loop() is not None: ---> 33 raise RuntimeError( 34 "asyncio.run() cannot be called from a running event loop") 36 if not coroutines.iscoroutine(main): 37 raise ValueError("a coroutine was expected, got {!r}".format(main)) RuntimeError: asyncio.run() cannot be called from a running event loop ``` Couldn't omit the --ip=0.0.0.0 argument since I'm running this on a server and I wouldn't be able to open the jupyter lab app I think I missed something before, what I'm getting is: ``` --------------------------------------------------------------------------- MissingContextError Traceback (most recent call last) Input In [2], in <module> ----> 1 repo_trending_check() File /opt/miniconda3/envs/op/lib/python3.9/site-packages/prefect/flows.py:249, in Flow.__call__(self, *args, **kwargs) 246 # Convert the call args/kwargs to a parameter dict 247 parameters = get_call_parameters(self.fn, args, kwargs) --> 249 return enter_flow_run_engine_from_flow_call(self, parameters) File /opt/miniconda3/envs/op/lib/python3.9/site-packages/prefect/engine.py:91, in enter_flow_run_engine_from_flow_call(flow, parameters) 88 parent_flow_run_context = FlowRunContext.get() 89 is_subflow_run = parent_flow_run_context is not None ---> 91 profile = prefect.context.get_profile_context() 92 profile.initialize() 94 begin_run = partial( 95 create_and_begin_subflow_run if is_subflow_run else create_then_begin_flow_run, 96 flow=flow, 97 parameters=parameters, 98 ) File /opt/miniconda3/envs/op/lib/python3.9/site-packages/prefect/context.py:282, in get_profile_context() 279 profile_ctx = ProfileContext.get() 281 if not profile_ctx: --> 282 raise MissingContextError("No profile context found.") 284 return profile_ctx MissingContextError: No profile context found. ``` With version `2.0a11` I manage to run it using `await <http://asyncio.to|asyncio.to>_thread(repo_trending_check)` ![Anna_Geller] **@Anna_Geller:** I see, I believe the fact that you are running your Jupyter on a separate server is the culprit because Orion may not know how to talk to it. Could you try running your Jupyter lab on the same machine as your Orion and see if that works? If so, we would need to figure out only the networking part rather than discussing package dependencies :slightly_smiling_face: ![Luis_Aguirre] **@Luis_Aguirre:** Both Jupyter and Orion are running on the same machine, what I'm noticing is that the issue happens when there's a running event loop ipython: [nbterm](https://github.com/davidbrochart/nbterm) (which is a jupyter notebook clone that runs locally on the terminal Results on ipython and on nbterm ![image](https://user-images.githubusercontent.com/86264395/157967170-c7e35273-56c1-4140-b18d-2d0106bc18eb.png) ![Anna_Geller] **@Anna_Geller:** Ok, thanks. Let me ask the team since I don't know why you can run it in iPython but not in your Jupyter notebook. @Luis_Aguirre my colleague encountered the no profile context too with an async task but it only occurs when the cell is run twice. Sharing just FYI: ``` --------------------------------------------------------------------------- MissingContextError Traceback (most recent call last) Input In [3], in <module> 12 data = await blob_storage_download( 13 blob="prefect.txt", 14 container="prefect", 15 azure_credentials=azure_credentials, 16 ) 17 return data ---> 19 await example_blob_storage_download_flow() File ~/Applications/python/orion/src/prefect/flows.py:249, in Flow.__call__(self, *args, **kwargs) 246 # Convert the call args/kwargs to a parameter dict 247 parameters = get_call_parameters(self.fn, args, kwargs) --> 249 return enter_flow_run_engine_from_flow_call(self, parameters) File ~/Applications/python/orion/src/prefect/engine.py:91, in enter_flow_run_engine_from_flow_call(flow, parameters) 88 parent_flow_run_context = FlowRunContext.get() 89 is_subflow_run = parent_flow_run_context is not None ---> 91 profile = prefect.context.get_profile_context() 92 profile.initialize() 94 begin_run = partial( 95 create_and_begin_subflow_run if is_subflow_run else create_then_begin_flow_run, 96 flow=flow, 97 parameters=parameters, 98 ) File ~/Applications/python/orion/src/prefect/context.py:282, in get_profile_context() 279 profile_ctx = ProfileContext.get() 281 if not profile_ctx: --> 282 raise MissingContextError("No profile context found.") 284 return profile_ctx MissingContextError: No profile context found. ``` ![Luis_Aguirre] **@Luis_Aguirre:** Hi, is there any update of this? ![Anna_Geller] **@Anna_Geller:** Did you try to upgrade to the latest version? We introduced some changes to the profiles so this may be resolved if you reinstall now actually ![Luis_Aguirre] **@Luis_Aguirre:** Yes, thank you, It still raises `MissingContextError: No profile context found.` ![Anna_Geller] **@Anna_Geller:** Can you perhaps run your flows from the terminal for now? I think running Orion in a Jupyter notebook is not commonly used and not tested yet. ![Luis_Aguirre] **@Luis_Aguirre:** My goal is to use Orion on a web application that uses a Jupyter Kernel Gateway to process dataframe data. I'm open to recommendations to stop using jupyter kernels for this app. I tried using the API from prefect and managed to run some code but realized the responses with pickled data aren't JavaScript friendly, since I'm using a Node.js back-end [Luis_Aguirre]: https://avatars.slack-edge.com/2022-01-13/2974752177136_e45361a65388a37db223_24.png [Anna_Geller]: https://avatars.slack-edge.com/2021-10-04/2585679938480_3d7e8c7969cc36b0c7ca_24.jpg

Solution is:

pip install “uvloop >= 0.16.0”

anna_geller · March 22, 2022, 6:07pm

@simon_mackenzie wow, thank you so much for sharing the solution, I really appreciate that!

Does it also solve this issue on WSL 2 or is this one still open?

simon_mackenzie · March 22, 2022, 6:25pm

Still an issue…and it is nothing to do with dockerflow runner. Did someone edit my title?

anna_geller · March 22, 2022, 6:45pm

Yeah, I did because it wasn’t specific enough. Saying “Prefect 2 doesn’t work with docker” doesn’t tell us much about what exactly you try to do here.

Can you define what you tried to do then? So far we haven’t anticipated running Orion itself in a Docker container apart from the Kubernetes deployment: https://orion-docs.prefect.io/tutorials/kubernetes-flow-runner/

So I assumed you had an issue using DockerFlowRunner - if not, can you provide exactly the steps you’ve taken so far and what exactly didn’t work?

anna_geller · March 22, 2022, 6:47pm

@simon_mackenzie let’s switch discussing the actual Docker issue in the Docker issue rather than here - it’s becoming confusing

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When getting started with Prefect 2.0, I'm getting an error "MissingContextError: No profile context found"

Running flows locally

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