Gradle ADT 0.4 error: android.buildToolsVersion is missing

Question

Attempting to build my Android project using the latest ADT tools release of Gradle, I get the following error:

Execution failed for task ':compileDebugAidl'.
> android.buildToolsVersion is missing!

Using Gradle 1.6, Android plugin 0.4.

Answer 1

Make sure that you've downloaded the latest ADT, SDK, Platform and Build tools. Then add this to your gradle build.

android {
     buildToolsVersion "17.0"
     compileSdkVersion 15
}

credit to the adt mailing group.

Note: It is important to put the " around the 17.0 as shown - otherwise that will not work

Answer 2

The buildToolsVersion value depends upon which version you downloaded from Google.

Assuming you installed the Android SDK, run "android" from the command-line, to open the Android SDK Manager. In the left column you'll see Tools | Android SDK Build-tools. That tells you whether or not you've installed the Build-tools yet.

After installing the Build-tools, look at the second column, labelled "Rev." It has the Build-tools version to use for gradle's buildToolVersion.