Gradle DSL method not found: 'packageNameSuffix()'

Question

I have a problem with the Gradle in Android Studio

Error :

Error:(37, 0) Gradle DSL method not found: 'packageNameSuffix()' Possible causes:

The project 'FilHarmonie' may be using a version of Gradle that does not contain the method. Gradle settings

The build file may be missing a Gradle plugin. Apply Gradle plugin

Where is the problem ?

Answer 1

This was changed to applicationIdSuffix several months ago, with the old name removed in November. Here is some documentation regarding the differences between packageName and applicationId.