Error: Gradle project sync failed. Please fix your proyect and try again

Error:(5, 0) Could not get unknown property 'TARGET_SDK_INT' for object of type com.android.build.gradle.LibraryExtension.

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.3"

    defaultConfig {
        minSdkVersion Integer.parseInt(MIN_SDK_INT)
        targetSdkVersion 25
        versionCode = Integer.parseInt(VERSION_CODE)
        versionName = VERSION_NAME
    }
}