gradle fails with custom android.jar

[AlexandrKozlovskiy]

Hello. I tryed to build android.jar using your guide. I pull framework.jar and build android.jar,but in gradle i get an error:

FAILURE: Build failed with an exception.

* What went wrong:
Could not resolve all files for configuration ':app:androidApis'.
Failed to transform android.jar to match attributes {artifactType=android-mockable-jar, org.gradle.libraryelements=jar, org.gradle.usage=java-runtime, returnDefaultValues=false}.
Execution failed for MockableJarTransform: C:\Users\ksash\AppData\Local\Android\Sdk\platforms\android-26\android.jar.

Please help me fix this issue and update build guide,if it needed.

[baotao14]

android-30 is alse failed

[ishaan-bst]

Getting same issue on android-33.