If the gradle wrapper for your project is broken, you can reinstall it with the “gradle wrapper” command. For example, below is a common error if you have cloned a git repository where the owner has not pushed all the necessary gradle components into the repo.
$ ./gradlew --info Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain
This can be fixed by running the “gradle wrapper” command, but this requires that you have gradle installed first.
Install Gradle
# java required java --version # download the latest gradle zip using your browser # https://gradle.org/releases/ # extract downloaded version unzip gradle-7.5.1-bin.zip # add to PATH export PATH=$PATH:$(realpath gradle-7.5.1/bin) # smoke test gradle --version
Fix Gradle wrapper
Fix the gradlew wrapper for the project by changing directory into the project directory and running the “gradle wrapper” task.
# fix gradle wrapper gradle wrapper # smoke test gradle wrapper $ ./gradlew --version $ ./gradlew tasks
Upgrade Gradle wrapper
If you want to specify an exact version of gradle to use, you can specify a flag.
# upgrade gradle wrapper gradle wrapper --gradle-version=7.4 # check version ./gradlew --version
REFERENCES
stackoverflow, explicitly setting gradle version
NOTES
Fixing “Cannot lock execution history cache (…) as it has already been locked by this process”
find ~/.gradle -type f -name "*.lock" -delete