android studio debug tips

backgroud

• Android studio 3.2.1

issues and solutions

• Gradle project sync failed. Please fix your project and try again

  • File - Project structure - project - gradle version = 4.10.3 ,defautt 5.0,and 5.1 also lead same error.

• Gradle sync failed: Cause: d29vzk4ow07wi7.cloudfront.net:80 failed to respond

  • File - Invalidate Cache /restart - invalidate and restart
  • open Android Studio

• Unable to resolve dependency for ':mobile@debug/compileClasspath': Could not download rxjava.jar (io.reactivex.rxjava2:rxjava:2.1.5)

  • File - Rsync project with gradle file, mabye proxy network is not stable.

• Process 'command 'sh'' finished with exit value 255 (state: FAILED) && '/xxx/ndk-bundle/toolchains/llvm/prebuilt/darwin-x86_64/bin/x86_64-linux-android21-clang: no such file or directory'

  • build failure
  • install ndk r19 https://dl.google.com/android/repository/android-ndk-r19-beta2-darwin-x86_64.zip
    • unzip and put in ndk-bundle path as above, you nee backup this ndk-bundle directory
    • reopen as, to check ndk version in sdk tools item of sdk manager.
    • sync gradle , run app

• run or debug runngin to fail:transformClassesWithInstantRunForDebug lead fail

  • disalbe install run in the preference

• device run timeout