I saw all other questions, but none of accepted answers is working for me.
By following integration steps found here https://dev.twitter.com/twitter-kit/android/int
Works fine added this on fabric.properties like this:
# Fabric properties file: app/fabric.properties
apiSecret=xx68f6074dxxxxxc11dxxx97c172e8ebf0
apiKey=xxxe76c4xxxx97e8cxxxx0135e9d46f5a2xxx
Add on .gitignore (for open source projects)
REMOVE entry on AndroidManifest.xml:
Oficial documentation: https://docs.fabric.io/android/fabric/settings/working-in-teams.html