fastagency run fails for mesop apps on Mac

[davorinrusevljan]

When running on Mac, starting mesop with:

fastagency run main_mesop.py

fails with following error:

**Mesop Developer Error:** No page has been registered. Read the [page docs](https://google.github.io/mesop/api/page/) to configure a page.

If you configured a page, then there was an exception in your code before the page was registered. Check your logs for more details.

each time web server is accessed.

Suspiciously hot reload gets "auto triggered" when application starts. IE no manual saving of source files happens:

Running server on: http://localhost:32123
 * Serving Flask app 'mesop.server.server'
 * Debug mode: off
Watching new Python module: /private/var/folders/6n/3rjds7v52cd83wqkd565db0h0000gn/T/tmpl4r7lbpa/main.py
Hot reload #1: starting...
Hot reload #1: finished!

[ChristophRaab]

Hi,
i got the same error trying out the getting startet error on mac air m2.
It seems that fastagency run has this problem using gunicorn main:app works. However, i needed to go to version 2.0 because the example on the gettting-started page was with 0.2 and not with latest.

[davorinrusevljan]

Yes, as workaround you can start it with gunicorn. We have this bug on radar, but maybe it would wait until we get FastAPI support out of the door.