I am trying to load my application in crashlytics. I tried to create an application in Android Studio, but I keep getting this message. See screenshot.

Then I tried the command line
./gradlew assembleRelease crashlyticsUploadDistributionRelease
:app:crashlyticsUploadDistributionRelease Uploading /Users/jgs/Projects/Personal/APP_NAME/app/build/outputs/apk/app-release-unsigned.apk to Crashlytics... WARN - Crashlytics halted compilation because it can't distribute the unsigned APK: /Users/jgs/Projects/Personal/APP_NAME/app/build/outputs/apk/app-release-unsigned.apk :app:crashlyticsUploadDistributionRelease FAILED FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':app:crashlyticsUploadDistributionRelease'. > Distribution upload failed. * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. BUILD FAILED Total time: 1 mins 51.465 secs
Is there a way to manually download a signed APK? I can build in Android normally, but this does not cause loading in crashlytics.
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