App dependency not found error

Anvil Q&A
1

I have installed my anvil app in my own Linux server but when I use external component library (slider example of anvil works) it gives an error. Error is like:
This app may be disconfigurated. Following error occurs
App dependency not found
But if I don’t use this external component, App works well. What can I do?

Thanks in advance

Note: external component library is : Slider Component

2

Welcome to Anvil! Most likely you need to configure the Slider Component app as a dependency, and import that dependency to the app in question. The Dependency docs here have a good overview of the steps to take.

3

Did you work through the steps at anvil-runtime/README.md at master · anvil-works/anvil-runtime · GitHub ? Dependencies don’t just work out of the box with the open source server, you have to tell it where the dependency is on your machine.

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4

I’m having the same issue with the anvil-extras module on my Ubuntu Google Compute Engine VM. I’ve tried adding in the --dep-id tag but it still isn’t working.

Is there a need to clone the anvil-extras repository to the VM also? And if so how do we direct the anvil-app-server to it’s directory?

5

It’s all explained in the runtime readme

6

Perhaps I’m just not understanding the documentation correctly. After reading through it and the other anvil docs this is the process I gathered it wanted me to follow:

I’ve cloned my app as well as the anvil-extras repository into my VM

/home/user
|__ My_App_file
… |__ __ init__.py
… |__ anvil.yaml
… |__ client_code etc.

|__ anvil-extras
… |__ __ init__.py
… |__ README.md
… |__ etc.

I’m deploying my app with the command:
anvil-app-server --app My_App_File --origin https://myurl.com/ --dep-id C6ZZPAPN4YYF5NVJ=anvil_extras

The anvil.yaml file of My_App_File has the dependencies in it as laid out in the readme and my client code has the import code
from anvil_extras import augment

and it all runs fine when run on the anvil cloud editor but not on my own VM.
Is there something I have misunderstood here?

7

In that example, you pass --dep-id C6ZZPAPN4YYF5NVJ=anvil_extras to the app server but the folder name you’ve quoted is anvil-extras

If you pass the correct folder name, does that solve the problem?

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8

Ah thanks so much, the folder name was the error! I had to change the folder name that cloned from “anvil-extras” to “anvil_extras” (as python doesn’t support modules with “-” in the name) then all was working perfectly!

Thanks again for your swift help :smiley:

9

Glad it worked - but that’s nothing to do with module names. You could just pass --dep-id C6ZZPAPN4YYF5NVJ=anvil-extras to the app server.

1 Like