Numerous errors on import

[originalkaratechop]

Imported both library and sample modules but now gradle fails to build. I tried using suggested strings from readme but following strings cause sync to fail misarably.

    compileSdkVersion rootProject.ext.compileSdkVersion
    buildToolsVersion rootProject.ext.buildToolsVersion

    defaultConfig {
        minSdkVersion rootProject.ext.minSdkVersion
        targetSdkVersion rootProject.ext.targetSdkVersion

    lintOptions {
        abortOnError rootProject.ext.lintAbortOnError
    }

    compileOptions {
        sourceCompatibility rootProject.ext.sourceCompatibility
        targetCompatibility rootProject.ext.targetCompatibility
    }

I don't even know why it is different from readme strings. Maybe sample was an extra that is not required?

[mmin18]

replace rootProject.ext.* with some exact version numbers.