I've been developing an MacOS app for a while and everything was going smoothly until one of the testers reported that the app was crashing on launch. After investigation, we discovered that he had System Integrity Protection disabled. I could reproduce the error by disabling SIP: Library not loaded: @rpath/myframework.framework/myframework Referenced from: <4C129258-1BF8-3D30-9AFE-BF4206D0A767> /Applications/MyApp.app/Contents/MacOS/MyApp Reason: , (security policy does not allow @ path expansion) (terminated at launch; ignore backtrace) The app launches normally if I reenable SIP. I can't find information about "security policy does not allow @ path expansion". I'll appreciate if someone can point me in the right direction.