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Hi all! I keep running into an issue when registering a flow to prefect cloud. I can successfully do it when running via CLI but when I switch to registering through flow.register() i get `Invalid Project!` even though the project exists.

That is the first time I’ve seen it. Did you recently delete this project? Does the CLI work?

Untitled.py

Hey Kevin. The project exists on the cloud UI. When running it via CLI it works fine but when i register after my flow definition it doesn't work (see code sample above). Error:
`Invalid project!`

When i run `prefect get projects` on the cli I can see the project. I have also authenticated via service account so Im not sure what I'm doing wrong.

Can you try moving the register outside of the Flow block? I dunno if it will make a difference

I've tried that but still getting the same error. I'll try again just to be sure.

Oof! It should be `project_name` inside register or you can just not name the argument

Sorry that was a typo in my sample code. I can confirm I was using `project_name` .

Running `flow.register()` still gives me invalid project. Weird!

No I mean `flow.register("project1")` . Just empty?

Do you use your API key in the CLI or something? I’m wondering about authentication to a different tenant?

Maybe you can try:
```from prefect import Client
Client().get_available_tenants()```
and see where you are authenticated?

`prefect auth list-tenants` only lists one tenant,.

I am wondering if the Client is getting another token or something rather than the CLI (which I can’t imagine but I have no better ideas at the moment)

I find your log weird because mine is:
```ValueError: Project test not found. Run `prefect create project 'test'` to create it.```

This is rather embarrassing :sweat_smile:. So the error I was getting was related to one of my own arg parser functions (used to run specific flows from the cli). Once I resolved that issue then the flow registered successfully. Thanks anyway for your help, it was really informative.

No worries man I’m that you solved it cuz I was grasping for solutions here. That’s good to know!