> Could not resolve all files for configuration ':classpath'.

It seems like you are encountering a build configuration issue in your project. The error message "Could not resolve all files for configuration ':classpath'" usually occurs when Gradle is unable to find or download the required dependencies for the build script.

To resolve this issue, you can try the following steps:

1. Check your internet connection: Ensure that you have a stable internet connection to download the dependencies.

2. Refresh dependencies: Run the following command to refresh the dependencies:

   ./gradlew clean build --refresh-dependencies

3. Check Gradle version: Make sure you have the correct version of Gradle specified in your project's `build.gradle` file. You can also try updating Gradle to the latest version if necessary.

4. Check repository URLs: Verify that the repository URLs specified in your `build.gradle` file are correct and accessible.

5. Proxy settings: If you are working behind a proxy, make sure to configure the proxy settings in Gradle.

If none of the above steps resolve the issue, please provide more details about your project setup and any additional error messages you are encountering.