Metro suddenly started to fail in React Native Application

Description

‘bundleRelease’ fails for Android right after the bundler starts, in the step described bellow. I have tried to run this same process at older branches of my project that worked fine before, but even there the builds are now failing.

The same errors happens when running:

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

> Task :app:bundleProdReleaseJsAndAssets
warning: the transform cache was reset.
                 Welcome to React Native!
                Learn once, write anywhere

error src/app.js: function (prevType) {
Error: function (prevType) {
  this.state.exprAllowed = false;

  this.state.exprAllowed = false;
  if (prevType === types._let || prevType === types._c...<omitted>...

} could not be cloned. Run CLI with --verbose flag for more details.
  if (prevType === types._let || prevType === types._c...<omitted>...
} could not be cloned.
    at Object.serialize (node:v8:260:7)
    at _default (/.../node_modules/metro/node_modules/@babel/core/lib/transformation/util/clone-deep.js:16:30)
    at normalizeFile (/.../node_modules/metro/node_modules/@babel/core/lib/transformation/normalize-file.js:52:36)
    at normalizeFile.next (<anonymous>)
    at run (/.../node_modules/metro/node_modules/@babel/core/lib/transformation/index.js:31:50)
    at run.next (<anonymous>)
    at /.../node_modules/metro/node_modules/@babel/core/lib/transform-ast.js:20:41
    at Generator.next (<anonymous>)
    at evaluateSync (/.../node_modules/gensync/index.js:251:28)

> Task :app:bundleProdReleaseJsAndAssets FAILED

System version and other requirements:

"metro-react-native-babel-preset": "0.59.0",

System:
    OS: macOS 11.2.3
    CPU: (16) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 1.21 GB / 16.00 GB
    Shell: 5.8 - /bin/zsh
  Binaries:
    Node: 15.11.0 - /usr/local/bin/node
    Yarn: 1.22.10 - /usr/local/bin/yarn
    npm: 7.6.0 - /usr/local/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  Managers:
    CocoaPods: 1.10.1 - /usr/local/bin/pod
  SDKs:
    iOS SDK:
      Platforms: iOS 14.4, DriverKit 20.2, macOS 11.1, tvOS 14.3, watchOS 7.2
    Android SDK:
      API Levels: 28, 29, 30
      Build Tools: 29.0.2, 30.0.3
      System Images: android-29 | Intel x86 Atom_64, android-29 | Google Play Intel x86 Atom_64, android-30 | Google APIs Intel x86 Atom
      Android NDK: Not Found
  IDEs:
    Android Studio: 4.1 AI-201.8743.12.41.6953283
    Xcode: 12.4/12D4e - /usr/bin/xcodebuild
  Languages:
    Java: 1.8.0_282 - /usr/bin/javac
    Python: 2.7.16 - /usr/bin/python
  npmPackages:
    @react-native-community/cli: Not Found
    react: 16.13.1 => 16.13.1 
    react-native: 0.63.2 => 0.63.2 
    react-native-macos: Not Found
  npmGlobalPackages:
    *react-native*: Not Found

Steps To Reproduce

Provide a detailed list of steps that reproduce the issue.

1. cd android && ./gradlew bundleRelease

Expected Results

The ‘bundleRelease’ works and generate the aab file.

[FelixMo42]

This started happening because the cloneInputAst setting for babel is now set to true by default In metro.

[drop-george]

What was the root cause of this @fansilva1991? Also running into something similar with an #<WeakSet> could not be cloned error message on React Native 0.65.1