Cannot run Android release build when index.android.js not in main directory

[dannycochran]

Description

I recently upgraded to react-native 0.39.2 from 0.37, and my command to run a production build on the emulator no longer works.

react-native run-android --configuration Release --variant prod --root artifacts/lib

Fails with the error:

Cannot find entry file index.android.js in any of the roots: ["/Users/Documents/reactApp"]

I'm using Typescript to compile assets into an artifacts folder, such that my directory structure is:

• reactApp
  • package.json
  • ios
  • android
    • gradle
    • ...
  • artifacts
    • lib
      • index.android.js
      • ...
    • ...
  • src
    • lib
      • index.android.ts
      • ...
    • ...

Reproduction

Have a directory structure similar to the one above where index.android.js is not in the main directory folder and run:
react-native run-android --configuration Release --variant prod

Solution

I believe this was caused by a pull request in 0.39, from @SandroMachado

2a2d3c6#diff-a003f89d34db18b4567fdb55080a003eR103

The react-native bundle command seems to assume the index.android.js exists in the root directory of a project, and no longer sets the process current directory to be the root arg passed in when running react-native run-android.

Additional Information

• React Native version: 0.39.2
• Platform: Android
• Operating System: MacOS

[SandroMachado]

Use --configuration and not --config.

2a2d3c6#diff-a003f89d34db18b4567fdb55080a003eR230

[dannycochran]

@SandroMachado sorry, my mistake. I am using --configuration.

I was thinking the issue is on line 110 of local-cli/runAndroid/runAndroid.js -- the index.android.js entry file is always expected to be at the root directory, no?

[SandroMachado]

This is the command executed to generate the release react-native bundle --platform android --dev false --entry-file index.android.js --bundle-output ${androidProjectDir}/app/src/main/assets/index.android.bundle --assets-dest ${androidProjectDir}/app/src/main/res/

So the problem is your index.android.js is under the artifacts directory?

[dannycochran]

correct, index.android.js is under artifacts/lib.

when running in dev, I run two separate commands on two different terminal screens:

screen 1:
node node_modules/react-native/local-cli/cli.js start --root artifacts/lib --reset-cache
screen 2:
react-native run-android --variant dev

In production, I run:

react-native run-android --configuration Release --variant prod --root artifacts/lib

But the artifacts/lib root isn't respected for the line you pasted above, line 110 of local-cli/runAndroid/runAndroid.js

[SandroMachado]

Yup, it is an issue. It is easy to fix, unfortunately that code is not on master anymore. It was removed by 85c8333 So, I cannot make a PR to fix it...

BTW, as a quick fix you can run the release command, directly, I pasted above and fix the directory. It should work.

react-native bundle --platform android --dev false --entry-file artifacts/lib/index.android.js ...

/cc @grabbou

[dannycochran]

dang. what would the fix look like? I hardcoded line 115 to look like this:

'--entry-file artifacts/lib/index.android.js ' +

and that results in a new error that makes little sense to me:

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processProdReleaseResources'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command '/Users/dannycochran/Library/Android/sdk/build-tools/23.0.1/aapt'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

[SandroMachado]

Hum, can this be a memory (RAM) issue? In the past, developing for Android, I saw that kind of errors caused by insufficient memory.

[dannycochran]

I'm guessing this is a separate issue from the one I originally posted, and may have to do with the fact that my app has a webview which loads various assets. When I run:

react-native run-android --configuration Release --variant prod

Five additional directories are created in android/app/src/main/res/:

• drawable-hdpi
• drawable-mdpi
• drawable-xhdpi
• drawable-xxhdpi
• drawable-xxxhdpi

The bundler also creates two files in android/app/src/main/assets/:

• index.android.bundle
• index.android.bundle.meta

If I remove all these files right after they're created (git clean -f -d) by the bundle command, the app builds successfully on the emulator. If I don't remove them, I get the error above.

[dannycochran]

this was fixed by 0.41.0

[sahir]

Thanks @dannycochran it's fixed in 0.41.0. This is the command executed to generate the release Bundle.

react-native bundle --platform android --dev false --entry-file index.android.js \ --bundle-output ../android/app/src/main/assets/index.android.bundle --assets-dest ../android/app/src/main/res/

[erm3nda]

Case of my install i have modified the @sahir 's command to:

react-native bundle --platform android --dev false --entry-file index.android.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res/

Now the bundle file is present.