This error message usually occurs when Gradle, a build system used by Android Studio, is unable to download a required jar file (in this case gradle-4.0.1.jar) from the internet. There could be several reasons why this error is occurring:
Network connection issue: Ensure that your internet connection is stable and that you have access to the required download location.
Firewall settings: If you have a firewall enabled, make sure that it is not blocking the download of the jar file.
Gradle version mismatch: Verify that your Gradle version is compatible with the version of Android Studio you are using.
Gradle distribution URL: The Gradle distribution URL in the Gradle settings may be incorrect. Check that it is set to the correct value.
Cached data issue: If there is a problem with the cached version of the jar file, you can try clearing the Gradle cache by going to the Android Studio settings and selecting "Build, Execution, Deployment" > "Gradle." Then, click the "Clear Gradle cache" button.
If none of these steps resolve the issue, you can try the following:
- Reinstalling Android Studio
- Updating to the latest version of Gradle
- Downloading the jar file manually and placing it in the correct location in your Gradle cache.
By following these steps, you should be able to resolve the "Could not download gradle-4.0.1.jar No cached version available" error and get your Android Studio project building again.