2017.3 New Gradle Error

Hello,

I had a project requiring updates to some SDKs, so I installed some SDKS in Android studio for this app.

Another app that was building fine, is now showing gradle errors and will NOT build with teh gradle option, previously worked fine.
It will build using internal, but I do not know why I am getting these gradle errors on build now.

> Failed to find Build Tools revision 28.0.0

I have no idea how to install build tools 28. There is nothing of the sort available in Android studio.

Here is the error stack.

CommandInvokationFailure: Gradle build failed. 

C:/Program Files/Java/jdk1.8.0_111\bin\java.exe -classpath "C:\Program Files\Unity2017\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-4.0.1.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx2048m" "assembleRelease"



stderr[



FAILURE: Build failed with an exception.



* What went wrong:

A problem occurred configuring root project 'gradleOut'.

> Failed to find Build Tools revision 28.0.0



* Try:

Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.



BUILD FAILED in 1s

]

stdout[



]

exit code: 1

UnityEditor.Android.Command.WaitForProgramToRun (UnityEditor.Utils.Program p, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)

UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)

UnityEditor.Android.AndroidJavaTools.RunJava (System.String args, System.String workingdir, System.Action`1 progress, System.String error)

UnityEditor.Android.GradleWrapper.Run (System.String workingdir, System.String task, System.Action`1 progress)

Rethrow as GradleInvokationException: Gradle build failed

UnityEditor.Android.GradleWrapper.Run (System.String workingdir, System.String task, System.Action`1 progress)

UnityEditor.Android.PostProcessor.Tasks.BuildGradleProject.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context)

UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context)

UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

 

Do you have the Android SDK Manager installed?
You should be able to download any Build Tools version from there.

I don't use Android Studio, but I think updating the Build Tools should also be possible from within there.

 

Build Tools 28 does exist in Android studio.
For the SDK, it is listed as P, and was not installed.
So, I did notice that the if the build tools for 28 exists on your system, and the actual SDK for 28 does not exist, this error occurs.

So, I removed all build tools down to 26, so my highest build tools is 26 and my highest sdk is 26. That fixed this error.

This was caused by Google Admob asset package installing the build tools up to 28, without installing the SDK, I think this happened when I ran the Android resolver.

 

Thank u so much Ebonicus!!!!
i wasted so much time on this error.

 

My pleasure, glad I could help, I am fairly new.

 

Ran into the same issue on 2017.3.0f1 after installing SDK 28.

For me the workaround was to copy ./mips64el-linux-android-4.9/ from android-ndk-r13b/toolchains/ to (AndroidSdkFolder)/ndk-bundle/toolchains/

A bit more info can be found here: https://github.com/google/filament/issues/15

 

thx for saving me from that.

 

Glad I could help somebody!

 

Thank for solving my problem!
For the ndk-bundle can be download from here https://dl.google.com/android/repository/android-ndk-r13b-windows-x86_64.zip