I'm facing this problem in android studio.I have downloaded the files mentioned in links, where to put paste those file

Question

Launching lib\main.dart on LS 5016 in debug mode... Running Gradle task 'assembleDebug'...

FAILURE: Build failed with an exception.

• What went wrong: A problem occurred configuring root project 'android'.

  Could not resolve all artifacts for configuration ':classpath'. Could not download builder.jar (com.android.tools.build:builder:3.5.0) Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/builder/3.5.0/builder-3.5.0.jar'. Premature end of Content-Length delimited message body (expected: 8174407; received: 2359280 Could not download bundletool.jar (com.android.tools.build:bundletool:0.9.0) Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/bundletool/0.9.0/bundletool-0.9.0.jar'. Premature end of Content-Length delimited message body (expected: 5248142; received: 4456416

• Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 27m 34s Finished with error: Gradle task assembleDebug failed with exit code 1

Answer 1

When I encounter Could not resolve all artifacts for configuration ':classpath', I usually invalidate cache , restart, clean and rebuild project. Strangely, the problem is solved just like that.

Anyway, if you want to add more dependencies, you can choose File > Project Structure > Dependencies.

Hope it help!