First time downloaded, Crashed on Startup, Everytime

First timer. Just downloaded Unreal Engine on iMac. Keeps crashing on launch. Here’s the code, I keep seeing…can anyone help? Thank you…

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SEGV_MAPERR at 0x3

FGenericPlatformMisc::RaiseException(unsigned int) Address = 0x1076cd00b (filename not found) [in UE4Editor-Core.dylib]
FOutputDeviceMacError::Serialize(wchar_t const*, ELogVerbosity::Type, FName const&) Address = 0x1078c8a2f (filename not found) [in UE4Editor-Core.dylib]
FOutputDevice::Logf(wchar_t const*, …) Address = 0x1079a96cd (filename not found) [in UE4Editor-Core.dylib]
FDebug::AssertFailed(char const*, char const*, int, wchar_t const*, …) Address = 0x10790f93e (filename not found) [in UE4Editor-Core.dylib]
FMemoryDerivedDataBackend::LoadCache(wchar_t const*) Address = 0x11fe028cf (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FDerivedDataBackendGraph::ParseBootCache(wchar_t const*, wchar_t const*, FString&) Address = 0x11fe117c8 (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FDerivedDataBackendGraph::ParseNode(wchar_t const*, FString const&, wchar_t const*, TMap >&) Address = 0x11fe0df7a (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FDerivedDataBackendGraph::ParseHierarchicalCache(wchar_t const*, wchar_t const*, FString const&, wchar_t const*, TMap >&) Address = 0x11fe11c76 (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FDerivedDataBackendGraph::ParseNode(wchar_t const*, FString const&, wchar_t const*, TMap >&) Address = 0x11fe0e00a (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FDerivedDataBackendGraph::ParseAsyncPut(wchar_t const*, wchar_t const*, FString const&, wchar_t const*, TMap >&) Address = 0x11fe12374 (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FDerivedDataBackendGraph::ParseNode(wchar_t const*, FString const&, wchar_t const*, TMap >&) Address = 0x11fe0e24b (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FDerivedDataBackendGraph::ParseKeyLength(wchar_t const*, wchar_t const*, FString const&, wchar_t const*, TMap >&) Address = 0x11fe12169 (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FDerivedDataBackendGraph::ParseNode(wchar_t const*, FString const&, wchar_t const*, TMap >&) Address = 0x11fe0e197 (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FDerivedDataBackendGraph::FDerivedDataBackendGraph() Address = 0x11fe0ce2c (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FDerivedDataCache::FDerivedDataCache() Address = 0x11fe2012b (filename not found) [in UE4Editor-DerivedDataCache.dylib]
InternalSingleton() Address = 0x11fdffb39 (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FDerivedDataCacheModule::GetDDC() Address = 0x11fe367a9 (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FDerivedDataCacheModule::StartupModule() Address = 0x11fe3671f (filename not found) [in UE4Editor-DerivedDataCache.dylib]
FModuleManager::LoadModuleWithFailureReason(FName, EModuleLoadResult&, bool) Address = 0x107a1105f (filename not found) [in UE4Editor-Core.dylib]
FModuleManager::LoadModule(FName, bool) Address = 0x107a0fbfc (filename not found) [in UE4Editor-Core.dylib]
IDerivedDataCacheModule* FModuleManager::LoadModulePtr(FName) Address = 0x1079797d1 (filename not found) [in UE4Editor-Core.dylib]
GetDerivedDataCache() Address = 0x107979732 (filename not found) [in UE4Editor-Core.dylib]
GetDerivedDataCacheRef() Address = 0x107979845 (filename not found) [in UE4Editor-Core.dylib]
CompileGlobalShaderMap(EShaderPlatform, bool) Address = 0x109fe575b (filename not found) [in UE4Editor-Engine.dylib]
FEngineLoop::PreInit(wchar_t const*) Address = 0x1075ca9fa (filename not found) [in UE4Editor]
GuardedMain(wchar_t const*) Address = 0x1075dcb71 (filename not found) [in UE4Editor]
-[UE4AppDelegate runGameThread:] Address = 0x1075eb01a (filename not found) [in UE4Editor]
-[FCocoaGameThread main] Address = 0x107884346 (filename not found) [in UE4Editor-Core.dylib]
Unknown() Address = 0x7fff7ab68b3d (filename not found) [in Foundation]
_pthread_body Address = 0x7fff8ead893b (filename not found) [in libsystem_pthread.dylib]
_pthread_body Address = 0x7fff8ead8887 (filename not found) [in libsystem_pthread.dylib]
thread_start Address = 0x7fff8ead808d (filename not found) [in libsystem_pthread.dylib]

Did you download the Mac version?