Apple LLVM 6.0 Error After Changing Architectures

Question

I have been working on reviving an older open source project, and when I updated the architecture from $(ARCHS_STANDARD_32_BIT) to $(ARCHS_STANDARD) , Xcode gave me a very long error with the title Apple LLVM 6.0 Error which ended with the line Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 1 . I tried undoing the architecture change, but it still gave the error when I ran it again.

The previous build worked perfectly, and the only changes that were made on the erroneous build were:

1) I moved the project to Dropbox

2) I changed the architecture

Here is the full error: http://pastebin.com/huLnWc7v

Answer 1

Try This , It may solve your problem.

Issue: Compiler unable to locate .pch file. This is because Location of Prefix Header file .pch in Project Target is incorrect.

The location is defined in Project Target/Build setting. You will need to go to: Project Target -> Build Settings Tab -> Scroll down and Look for "Apple LLVM Compiler 6.0 - Language" Underneath this node -> You will find the key/value setting for Prefix Header file.

Normally Prefix header file is located under "Supporting File" Folder in your project

Reference : Anbu.Karthik

Answer 2

I was trying to compile ARM code as if it were ARM64. Since it's just an app and not an extension, I don't need to do that. So, under Project>Target>Build Settings> Architectures I changed the Architectures key I standard architectures, and the Valid Architectures key to armv7.