If your app targets Android 12, you must specify the mutability of each PendingIntent object that your app creates. This additional requirement improves your app's security. https://developer.android.com/about/versions/12/behavior-changes-12#pending-intent-mutability Android Lint is being updated, and adds an error-level check for this. Bug: 247885568 Test: Presubmits Change-Id: I2bb91d98b443af2b5c16944ce197d863dbd33f9a