All seems ok but no app

[changux]

Hi,

After executing:

yarn start

I received a:

Error: Cannot resolve entry file: The mainfield defined in yourpackage.json points to a non-existent path.

The entry point inside package.json is 'index.js', I changed to App.js.

Next, and issue related to src/graphql/queries and finally, all seems correct, launching expo go app (Downloaded javascript bundle) and I received just a white screen.

No errors in the cloud9 environment.

Any clue?