@react-native-community/cli-platform-android Build failed with an exception

Environment

react-native info

yarn run v1.19.1
$ /Users/b1ng/rn/haokan/node_modules/.bin/react-native info
info Fetching system and libraries information...
System:
    OS: macOS 10.15.1
    CPU: (4) x64 Intel(R) Core(TM) i5-7360U CPU @ 2.30GHz
    Memory: 53.23 MB / 8.00 GB
    Shell: 5.7.1 - /bin/zsh
  Binaries:
    Node: 12.12.0 
    Yarn: 1.19.1 
    npm: 6.12.1 - /usr/local/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  IDEs:
    Android Studio: 3.5 AI-191.8026.42.35.5900203
    Xcode: /undefined - /usr/bin/xcodebuild
  npmPackages:
    react: 16.9.0 => 16.9.0
    react-native: 0.61.4 => 0.61.4
✨  Done in 2.66s.

react-native --version

yarn run v1.19.1
$ /Users/b1ng/rn/haokan/node_modules/.bin/react-native --version
3.0.0-alpha.7
✨  Done in 0.32s.

Description

yarn android

yarn run v1.19.1
$ react-native run-android
info Running jetifier to migrate libraries to AndroidX. You can disable it using "--no-jetifier" flag.
Jetifier found 864 file(s) to forward-jetify. Using 4 workers...
info Starting JS server...
info Installing the app...

FAILURE: Build failed with an exception.

* Where:
Script '/Users/b1ng/rn/haokan/node_modules/@react-native-community/cli-platform-android/native_modules.gradle' line: 182

* What went wrong:
A problem occurred evaluating script.
> Unable to determine the current character, it is not a string, number, array, or object

  The current character read is 'i' with an int value of 105
  Unable to determine the current character, it is not a string, number, array, or object
  line number 1
  index number 0
  info Run "react-native --help" to see a list of all available commands.
  ^

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

* Get more help at https://help.gradle.org

BUILD FAILED in 1s

error Failed to install the app. Make sure you have the Android development environment set up: https://facebook.github.io/react-native/docs/getting-started.html#android-development-environment. Run CLI with --verbose flag for more details.
Error: Command failed: ./gradlew app:installDebug -PreactNativeDevServerPort=8081

FAILURE: Build failed with an exception.

* Where:
Script '/Users/b1ng/rn/haokan/node_modules/@react-native-community/cli-platform-android/native_modules.gradle' line: 182

* What went wrong:
A problem occurred evaluating script.
> Unable to determine the current character, it is not a string, number, array, or object

  The current character read is 'i' with an int value of 105
  Unable to determine the current character, it is not a string, number, array, or object
  line number 1
  index number 0
  info Run "react-native --help" to see a list of all available commands.
  ^

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

* Get more help at https://help.gradle.org

BUILD FAILED in 1s

    at checkExecSyncError (child_process.js:621:11)
    at execFileSync (child_process.js:639:15)
    at runOnAllDevices (/Users/b1ng/rn/haokan/node_modules/@react-native-community/cli-platform-android/build/commands/runAndroid/runOnAllDevices.js:94:39)
    at buildAndRun (/Users/b1ng/rn/haokan/node_modules/@react-native-community/cli-platform-android/build/commands/runAndroid/index.js:158:41)
    at /Users/b1ng/rn/haokan/node_modules/@react-native-community/cli-platform-android/build/commands/runAndroid/index.js:125:12
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
    at async Command.handleAction (/Users/b1ng/rn/haokan/node_modules/@react-native-community/cli/build/index.js:164:9)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

Reproducible Demo

[sagargulati]

I found a workaround for this:

yarn add @react-native-community/cli-platform-android@3.0.3
yarn add react-native@0.61.5
Removed "--quiet" from npx.cmd in native_modules.gradle
cd android && gradlew clean

[b1ngx]

@Esemesek

I haven’t install react-native-cli any all. Create the app with npx react-native init. And when i reinstall @react-native-community/cli-platform-android with @3.0.0-alpha.2 , it’s ok.