I was working on Project in Xcode 6.1. It was working fine and all of sudden it prompted an error 'Restkit/Restkit.h file not found'. I'm getting error after changing Architectures from
$(ARCHS_STANDARD_32_BIT) to Standard architectures (armv7,arm64) - $(ARCHS_STANDARD)
1.'Cleaning' project and rebuilding
2. Checked for missing framework in Target -> Build Phases
3. Fixed 'Framework Search Path' of Target
4. I have build Restkit XcodeProject and Targets separately. It builds without error.
I had used third-party static library in project named libNuance.a. It seems that this
static library works fine for 32-bit architecture but failed for 64-bit architecture.
I downloaded updated version of libNuance.a library from their official site and changed architecture to Standard architectures (armv7,arm64) - $(ARCHS_STANDARD).
Vola! build succeeded without any error.