Build.gradle: Access to 'project' exceeds its access rights

Question

constants.gradle

project.ext {
    minSdkVersion = 19
    compileSdkVersion = 28
    targetSdkVersion = 28
    buildToolsVersion = '28.0.3'
    supportLibraryVersion = '28.0.0'
}

build.gradle of the app

apply plugin: 'com.android.application'
apply from: '../constants.gradle'

android {

    compileSdkVersion project.ext.compileSdkVersion
    buildToolsVersion project.ext.buildToolsVersion

    defaultConfig {
    ...

What is wrong here?

Though it works fine for libraries in the same project:

Also everything is fine for the next lines in defaultConfig block

minSdkVersion project.ext.minSdkVersion
targetSdkVersion project.ext.targetSdkVersion

Android Studio 3.2, classpath 'com.android.tools.build:gradle:3.2.0', distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip

Seems it didn't show such warnings with the previous Gradle or Studio

Answer 1

It's just a warning and It should work.

Because when you use project inside android scope, Gradle tries to find the invocation location of project.

You have two options to fix this warning.

Get your constants outside of android scope.

def compileSdkVersion = project.ext.compileSdkVersion
def buildToolsVersion = project.ext.buildToolsVersion

android {

    compileSdkVersion compileSdkVersion
    buildToolsVersion buildToolsVersion
    ...

Or update your constants.gradle:

ext {
    buildVersions = [
      minSdkVersion : 19,
      compileSdkVersion : 28,
      targetSdkVersion : 28,
      buildToolsVersion : '28.0.3',
      supportLibraryVersion : '28.0.0',
    ]
}

and use it in your build.gradle like:

apply plugin: 'com.android.application'
apply from: '../constants.gradle'

android {

    compileSdkVersion buildVersions.compileSdkVersion
    buildToolsVersion buildVersions.buildToolsVersion
    ...