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:
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.