I have trouble integrating Crashlytics into my project.
Having follow instruction on website. But soon after installing the Crashlytics mac app<
Follow the advice in the answers above but in addition: IF you installed crashlytics via cocoapods, make sure you are using the proper path in your build phase script.
Use:
./Pods/CrashlyticsFramework/Crashlytics.framework/run myLongKey
Instead Of:
./Crashlytics.framework/run myLongKey