Ue4 4.16.3 crashes on launch on Macbook pro 2017

Development Platform & Builds
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1

Hi,

I have a Macbook Pro 2017 with the following specs:
macOS sierra 10.12.6
2.3ghz IntelCore i5
8gb memory
Intel Iris Plus Graphics 640 1536MB

I installed 4.16.3 from the Epic Launcher, but when I start it it crashes, and gives me this error report:

LoginId:c5d410d88b4b3621931fdf90805999b5
EpicAccountId:c9ecb7be016a454e922a246dba306adb

SEGV_MAPERR at 0x3

FGenericPlatformMisc::RaiseException(unsigned int) Address = 0x10775f15b (filename not found) [in UE4Editor-Core.dylib]
FOutputDeviceMacError::Serialize(wchar_t const*, ELogVerbosity::Type, FName const&) Address = 0x10795aa2f (filename not found) [in UE4Editor-Core.dylib]
FOutputDevice::Logf(wchar_t const*, …) Address = 0x107a3b6cd (filename not found) [in UE4Editor-Core.dylib]
FDebug::AssertFailed(char const*, char const*, int, wchar_t const*, …) Address = 0x1079a193e (filename not found) [in UE4Editor-Core.dylib]
LoadPhysXModules()::$_0::operator()(FString const&) const Address = 0x10c62657e (filename not found) [in UE4Editor-Engine.dylib]
LoadPhysXModules() Address = 0x10c625ed3 (filename not found) [in UE4Editor-Engine.dylib]
InitGamePhys() Address = 0x10c5ef908 (filename not found) [in UE4Editor-Engine.dylib]
FEngineLoop::PreInit(wchar_t const*) Address = 0x10766093e (filename not found) [in UE4Editor]
GuardedMain(wchar_t const*) Address = 0x107673b71 (filename not found) [in UE4Editor]
-[UE4AppDelegate runGameThread:] Address = 0x10768201a (filename not found) [in UE4Editor]
-[FCocoaGameThread main] Address = 0x107916346 (filename not found) [in UE4Editor-Core.dylib]
Unknown() Address = 0x7fff77e3f8ad (filename not found) [in Foundation]
_pthread_body Address = 0x7fff8bdbe93b (filename not found) [in libsystem_pthread.dylib]
_pthread_body Address = 0x7fff8bdbe887 (filename not found) [in libsystem_pthread.dylib]
thread_start Address = 0x7fff8bdbe08d (filename not found) [in libsystem_pthread.dylib]

How can I get over this?

Thank you,

2

Solved it. The problem was, that the partition was formatted to Case-Sensitive, and UE4 didn’t like that.
Reformatted the partition to to case insensitive, and now it works.

3

How do you do that?

4

You have to go to Disk Utility, and create a new partition for development(if you don’t want to delete all of your files from your computer), and choose for formatting :“Journaled”, and make sure it’s not “Journaled Case-Sensitive”. Make sure not to do “Erase” on your main disk, because it will delete everything on your computer. Just create a new partition, choose the right format, and install UE4 there.

IF, and ONLY IF you can afford to delete all of your files choose “Erase”, for repartitioning(Let’s say it’s a brand new mac with nothing on it, or you’ve backed up everything).