Stand alone build failed! - where to find the details of this error?

May I know how to pin point where went wrong?

After I successfully run expo build:ios, i was trying to build an android apk with expo build:android. However I got this error messages: ’
Checking if this build already exists…

Build started, it may take a few minutes to complete.
You can check the queue length at Service Status — Standalone Builds — Expo

You can monitor the build at

Build Details — 544fccf5-a71d-4a04-bf62-e8b2593eaef7 — iRecycle — Expo

Waiting for build to complete.
You can press Ctrl+C to exit. It won’t cancel the build, you’ll be able to monitor it at the printed URL.
× Build failed.
Standalone build failed!

expo diagnostics log’s -
Expo CLI 4.9.1 environment info:
OS: Windows 10 10.0.19043
Node: 14.17.0 - C:\Program Files\nodejs\node.EXE
Yarn: 1.22.10 - C:\Users\mrx88\AppData\Roaming\npm\yarn.CMD
npm: 7.18.1 - C:\Program Files\nodejs\npm.CMD
expo: ^42.0.0 => 42.0.1
react: 16.13.1 => 16.13.1
react-dom: 16.13.1 => 16.13.1
react-native: => 0.63.2
react-native-web: ~0.13.12 => 0.13.18
react-navigation: ^4.4.4 => 4.4.4
Expo Workflow: managed

I figured out where is the cause of the error.

In app.json,

  1. my previous successful expo build:android was using ‘com.mycompany.myproject’

  2. the new failed expo build:android is currently using ‘’

so in app.json, if I revert the value back to 1) ‘com.mycompany.myproject’, the expo build:android will be successful again.

We further tested, as long as we switched the value different to the value than the first time I build this expo project the build will fail,

so I don’t think the bug is related to the format of the new value.

Does expo build forbid changing android package names?


if you are using any google services, there will be a file ./google-services.json

We discovered the bug is within the file ./google-services.json

if you change the app.json’s name from android you should also change the target client in ./google-services.json


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