Resource compilation failed! Failed to recompile android resource files. See the Console for details.

Questions & Answers
1

I’m working on adding Google Play Game Services to a Unity project.

Started getting these errors recently, however not sure if it is because of the Game Services, or could be I updated my machine.

The following in Console output:

Failed to compile resources with the
following parameters: -bootclasspath
“/Users/alex/development/adt-bundle-mac-x86_64-20131030/sdk/platforms/android-21/android.jar”
-d “/Users/alex/Documents/development/unity/Maze/Maze/Temp/StagingArea/bin/classes”
-source 1.6 -target 1.6 -encoding UTF-8 “com/facebook/android/R.java”
“com/google/android/gms/R.java”
“com/google/example/games/basegameutils/R.java”
“com/google/example/games/mainlibproj/R.java”
“com/mildspring/maze/R.java” warning:
java/lang/Object.class(java/lang:Object.class):
major version 51 is newer than 50, the
highest major version supported by
this compiler. It is recommended that
the compiler be upgraded. 1 warning

UnityEditor.HostView:OnGUI()

Error building Player: UnityException:
Resource compilation failed! Failed to
recompile android resource files. See
the Console for details.

2

You have not installed jdk 1.7 yet or has been installed but did not set Path correctly.

  • Open Terminal, run:

    open ~/.bash_profile

  • Add these lines into bash_profile:

    export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk/Contents/Home/bin
    export PATH=$JAVA_HOME/bin:$PATH

  • Run this command:

    sudo ln -nsf /Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk/Contents/System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK

*NOTE: You should not just copy all of these commands, use your path instead. (For example, my path is jdk1.7.0_71.jdk because my jdk version is jdk7u71, if your version is difference, your path will be difference)

4

For anyone else who ends up here: As of Unity 2017, Unity is incompatible with JDK 9. You need to continue to use JDK 1.8 for the time being.

3

In my case JDK was installed but Unity was pointing to an older version causing the same error.

5

I just got the same issue using 5.6.3p2 and jdk 1.10. Which is the actual, compatible jdk? Or is there a new reason for this error?