java.lang.IllegalAccessError: Method 'void android.support.v4.content

Question

I updated playservice in my sdk and I got this error. And I am not able to access GCM Token. Before update sdk my project work perfectly.

I waste my whole day in i

Answer 1

Please check your declared dependencies. As discussed in the given documentation there are three different types of direct dependencies in the app/ module's build.gradle file.

Sample dependencies are as follows:

android {...}
...
dependencies {
    // The 'compile' configuration tells Gradle to add the dependency to the
    // compilation classpath and include it in the final package.

    // Dependency on the "mylibrary" module from this project
    compile project(":mylibrary")

    // Remote binary dependency
    compile 'com.android.support:appcompat-v7:25.0.1'

    // Local binary dependency
    compile fileTree(dir: 'libs', include: ['*.jar'])
}

Furthermore, as answered by @Diego Giorgini in a related SO post,

The issue you are experiencing is due to an incompatibility between play-services / firebase sdk v9.0.0 and com.android.support:appcompat-v7 >= 24 (the version released with android-N sdk)

With this, you may want to try the suggested fix:

You should be able to fix it by targeting an earlier version of the support library. Like:

compile 'com.android.support:appcompat-v7:23.4.0'

You may want to also check the other suggestions in the following SO posts:

• IncompatibleClassChangeError after updating to Android Build Tools 25.1.6 GCM / FCM
• Android Google Cloud Messaging (GCM) token generation crash after Firebase-related Google Play Services update.