Hi team I have run prefect agent local start command and it

Question

Hi team I have run prefect agent local start command and it gives me error No Agent Api token provided I m running server and not cloud Can any guide me how can I generate this token for server

Greg Roche · Answer

Have you run `prefect backend server` before running `prefect agent local start`

rafaqat ali · Answer

I have run docker compose up command only

Greg Roche · Answer

Then run `prefect backend server` before starting the agent You don t need to generate any tokens in order for agents to be able to connect to Prefect Server

rafaqat ali · Answer

thanks

rafaqat ali · Answer

I have run the command prefect agent docker start and docker agent is created successfully and I m able to see in UI But when I run the flow from UI all the tasks are getting late run and not running successfully

Greg Roche · Answer

Could be a bunch of different things but a common beginner pitfall is labels your flow must have the same labels as the agent or at least the flow needs a subset of the agent s labels <https docs prefect io orchestration execution overview html labels>

Greg Roche · Answer

You deleted your screenshot but the flow had a label that the agent did not have so the agent would not execute runs of that flow From the documentation I linked gt On the other hand if you register a flow that has environment labels set to ` dev staging ` and run an Agent with the labels ` dev ` then it will not pick up the flow because there exists labels in the environment which were not provided to the agent

rafaqat ali · Answer

Thank you got your point

rafaqat ali · Answer

Now flows are executed successfully But for every flow I got the error Failed to load and execute Flow s environment ModuleNotFoundError No module named C

rafaqat ali · Answer

Agent is running on different machine and I m registering flow from different machine

rafaqat ali · Answer

Code that I m using to register the flow is ``` with Flow Test run run config=DockerRun labels= dev as flow flow add task say hello flow register Test ```

rafaqat ali · Answer

Can anyone guide me about the issue I m facing in flow run from UI Failed to load and execute Flow s environment AttributeError NoneType object has no attribute rstrip My flow storage is on azure blob When I execute the flow from UI I got the error

Greg Roche · Answer

As this channel is for questions related to Prefect Server you ll probably get more views in < CL09KU1K7|prefect community> It doesn t seem like this issue is related to Prefect Server because the error message suggests there is a problem within the logic of your flow because at some point the code is trying to run `foo rstrip ` where the value of `foo` is `None`

Greg Roche · Answer

```foo = None foo rstrip a Traceback most recent call last File lt stdin gt line 1 in lt module gt AttributeError NoneType object has no attribute rstrip ```

rafaqat ali · Answer

My agent is running on different machine and I m registering flow from different machine is this the issue you think