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The gradlew script is outdated or damaged

Android / Gradle · last reviewed 2026-11-10

The error looks like this

[RUN_GRADLEW] gradlew: 154: Syntax error: "(" unexpected

Why it happens

android/gradlew is from a much older Gradle than the wrapper version, or it was saved with Windows line endings.

How to fix it

  1. Regenerate it: cd android && gradle wrapper (or copy gradlew from a fresh React Native / Expo template of your version).
  2. Make sure it has Unix line endings and is executable: chmod +x android/gradlew
  3. Expo managed apps: delete the android folder and let prebuild create it again.

Not sure this is your error? Let ReleaseMedic read the whole log

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