Erro Android Studio

[Eziel Santos]

From night to day my android studio started to give this error, I did not mechi at all, I have the source code, msmo if I extract a new project without even having mechido of this error, before it did not work.

Error: No signature of method: com.crashlytics.tools.gradle.CrashlyticsPlugin.findObfuscationTransformTask () is applicable for argument types: (java.lang.String) values: [Debug]

Help me please