Xcode 8 beta - Command Failed due to Signal: Segmentation Fault 11

Hi,

I recently got this error when I tried to run my project in Xcode.

I'm using Xcode 8 beta and this issue very rarely occurred even when using Xcode 7 but after a few times running it after it failed it ran fine.

(exact error below)

Swift Compiler Error:

Command failed due to signal: Segmentation Fault 11

MergeSwiftModule normal armv7 /Users/Jake/Library/Developer/Xcode/DerivedData/Fetch-ddenljesraxthiabshzmnlsszrws/Build/Intermediates/Fetch.build/Debug-iphoneos/Fetch.build/Objects-normal/armv7/Fetch.swiftmodule

0 swift 0x0000000108cab99d PrintStackTraceSignalHandler(void*) + 45

1 swift 0x0000000108cab3e6 SignalHandler(int) + 470

2 libsystem_platform.dylib 0x00007fff88eea52a _sigtramp + 26

3 libsystem_platform.dylib 0x0000000000000005 _sigtramp + 1997626101

4 swift 0x000000010669a659 swift::ModuleFile::getType(llvm::PointerEmbeddedInt<unsigned int, 31>) + 857

5 swift 0x0000000106692ff7 swift::ModuleFile::getDecl(llvm::PointerEmbeddedInt<unsigned int, 31>, llvm::Optional<swift::DeclContext*>) + 18599

6 swift 0x000000010669e91a swift::ModuleFile::maybeReadPattern() + 682

7 swift 0x0000000106691baa swift::ModuleFile::getDecl(llvm::PointerEmbeddedInt<unsigned int, 31>, llvm::Optional<swift::DeclContext*>) + 13402

8 swift 0x00000001066a3087 swift::ModuleFile::loadAllMembers(swift::Decl*, unsigned long long) + 647

9 swift 0x0000000106a204ba (anonymous namespace)::Traversal::visitNominalTypeDecl(swift::NominalTypeDecl*) + 314

10 swift 0x0000000106a1df8b (anonymous namespace)::Traversal::doIt(swift::Decl*) + 219

11 swift 0x00000001063f2bdf swift::SILPassManager::SILPassManager(swift::SILModule*, llvm::StringRef) + 1439

12 swift 0x00000001063f792f swift::runSILDiagnosticPasses(swift::SILModule&) + 159

13 swift 0x00000001060c32b7 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*) + 19735

14 swift 0x00000001060bc2c5 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 17029

15 swift 0x000000010607988d main + 8685

16 libdyld.dylib 0x00007fff8b0575ad start + 1

17 libdyld.dylib 0x000000000000006f start + 1962576579

Stack dump:

1. While loading members for 'MenuViewController' at <invalid loc>

2. While deserializing decl #126 (PATTERN_BINDING_DECL)

3. While deserializing decl #9 (VAR_DECL)

I've only been leanring Swift about a year and a half now and don't understand why this is happening. I have a deadline for this app and would reallt appriciate a response ASAP.

Thanks a lot!

Jake