crashlytics android studio gradle build failed

Question

I have installed crashlytics plugin to android studio 0.9.3; after this I added to my project; It added lines to gradle, first activity and so on...; after this build fails with

Answer 1

Open fabric.properties and check if value against apiKey reads YOUR_API_KEY. If yes then copy your API Key from AndroidManifest.xml and paste it against apiKey in the fabric.properties.