Can not build Gradle project with Android Studio

Question

I'm using Android Studio 0.3.0 (configured to use gradle wrapper to build), Gradle 1.8. Everytime I build (or rebuild) the project with Android Studio, I get the error:

Gradle: A problem occurred evaluating project ':MyProject'.
> For input string: ""

Clicking on the error, here is the error code in build.gradle:

def getCommitsCount() {
    return 'git rev-list --count HEAD'.execute().text.toInteger()
}

If I remove .toInteger() then the error is gone. Otherwise, I can build the project from console just fine ./gradlew clean check build.

Anyone is getting the same problem? It seems to be a problem of Android Studio. If you know any workaround or fix, that would be cool.

Answer 1

To find out what is the reason that output stream is empty access the error stream using err.

def getCommitsCountError() {
    return 'git rev-list --count HEAD'.execute().err.text.toInteger()
}

Is likely as JChord pointed that error can be.

"xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun"

Then the solution is to (re)install Xcode Command Line Tools.

xcode-select --install

as git is connected to it.