Error:
Execution failed for task ':app:crashlyticsUploadDistributionPreviewRelease'. getMainOutputFile is no longer supported. Use getOutputFileName if you need to determine the file name of the output.
When I call crashlyticsUploadDistributionRelease, the gradle console display these message to me,
I tried the latest fabric plugin(io.fabric.tools:gradle:1.22.1), I assume that fabric gradle plugin didn't support the latest android-gradle-plugin-3.0-x.
Here is more info about new gradle-plugin-variant-api, may be it it would help