IOS : Building Fails

Question

I am a new IOS developer. I tried creating many iOS projects in Xcode, but all shows Build Failed errors. With HelloWorld, I could get it was related to AutoLayout - I unselected and that was it.

With this other project, I can't make out the reason for errors. The errors are :` Build target CorporateChat

 CompileC /Users/admin/Library/Developer/Xcode/DerivedData/CorporateChat-
    egudgkrhstksmbhhcldjmempbwsj/Build/Intermediates/CorporateChat.build/Debug-iphonesimulator
    /CorporateChat.build/Objects-normal/i386/TC_LoginDataController.o 
    CorporateChat/TC_LoginDataController.m normal i386 objective-c 
    com.apple.compilers.llvm.clang.1_0.compiler

        cd "/Users/admin/Documents/Kush InfoSystems/IOS Project/CorporateChat"

        setenv LANG en_US.US-ASCII
        setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform
    /Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:
    /sbin"

        /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
     -x objective-c -arch i386 -fmessage-length=0 -fdiagnostics-show-note-include-stack -fmacro-
    backtrace-limit=0 -std=gnu99 -fobjc-arc -fmodules -fmodules-cache-path=/Users/admin/Library
    /Developer/Xcode/DerivedData/ModuleCache -Wno-trigraphs -fpascal-strings -O0 -Wno-missing-field-
    initializers -Wno-missing-prototypes -Werror=return-type -Wno-implicit-atomic-properties 
    -Werror=deprecated-objc-isa-usage -Werror=objc-root-class -Wno-receiver-is-weak -Wno-arc-
    repeated-use-of-weak -Wduplicate-method-match -Wno-missing-braces -Wparentheses -Wswitch 
-Wunused-function -Wno-unused-label -Wno-unused-parameter -Wunused-variable -Wunused-value 
-Wempty-body -Wuninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants 
-Wno-conversion -Wconstant-conversion -Wint-conversion -Wbool-conversion -Wenum-conversion -Wshorten-
64-to-32 -Wpointer-sign -Wno-newline-eof -Wno-selector -Wno-strict-selector-match -Wundeclared-
selector -Wno-deprecated-implementations -DDEBUG=1 -isysroot /Applications/Xcode.app/Contents
/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk -fexceptions 
-fasm-blocks -fstrict-aliasing -Wprotocol -Wdeprecated-declarations -g -Wno-sign-conversion -fobjc-
abi-version=2 -fobjc-legacy-dispatch -mios-simulator-version-min=7.0 -iquote /Users/admin/Library
/Developer/Xcode/DerivedData/CorporateChat-egudgkrhstksmbhhcldjmempbwsj/Build/Intermediates
/CorporateChat.build/Debug-iphonesimulator/CorporateChat.build/CorporateChat-generated-files.hmap 
-I/Users/admin/Library/Developer/Xcode/DerivedData/CorporateChat-egudgkrhstksmbhhcldjmempbwsj/Build
/Intermediates/CorporateChat.build/Debug-iphonesimulator/CorporateChat.build/CorporateChat-
own-target-headers.hmap -I/Users/admin/Library/Developer/Xcode/DerivedData/CorporateChat-
egudgkrhstksmbhhcldjmempbwsj/Build/Intermediates/CorporateChat.build/Debug-iphonesimulator
/CorporateChat.build/CorporateChat-all-target-headers.hmap -iquote /Users/admin/Library/Developer
/Xcode/DerivedData/CorporateChat-egudgkrhstksmbhhcldjmempbwsj/Build/Intermediates/CorporateChat.build
/Debug-iphonesimulator/CorporateChat.build/CorporateChat-project-headers.hmap -I/Users/admin/Library
/Developer/Xcode/DerivedData/CorporateChat-egudgkrhstksmbhhcldjmempbwsj/Build/Products/Debug-
iphonesimulator/include -I/Applications/Xcode.app/Contents/Developer/Toolchains
/XcodeDefault.xctoolchain/usr/include -I/Users/admin/Library/Developer/Xcode/DerivedData
/CorporateChat-egudgkrhstksmbhhcldjmempbwsj/Build/Intermediates/CorporateChat.build/Debug-
iphonesimulator/CorporateChat.build/DerivedSources/i386 -I/Users/admin/Library/Developer/Xcode
/DerivedData/CorporateChat-egudgkrhstksmbhhcldjmempbwsj/Build/Intermediates/CorporateChat.build
/Debug-iphonesimulator/CorporateChat.build/DerivedSources -F/Users/admin/Library/Developer/Xcode
/DerivedData/CorporateChat-egudgkrhstksmbhhcldjmempbwsj/Build/Products/Debug-iphonesimulator 
-include /Users/admin/Library/Developer/Xcode/DerivedData/CorporateChat-egudgkrhstksmbhhcldjmempbwsj
/Build/Intermediates/PrecompiledHeaders/CorporateChat-Prefix-eiiyuowfsnsnqidczavfrfsfvsrz
/CorporateChat-Prefix.pch -MMD -MT dependencies -MF /Users/admin/Library/Developer/Xcode/DerivedData
/CorporateChat-egudgkrhstksmbhhcldjmempbwsj/Build/Intermediates/CorporateChat.build/Debug-
iphonesimulator/CorporateChat.build/Objects-normal/i386/TC_LoginDataController.d --serialize-
diagnostics /Users/admin/Library/Developer/Xcode/DerivedData/CorporateChat-
egudgkrhstksmbhhcldjmempbwsj/Build/Intermediates/CorporateChat.build/Debug-iphonesimulator
/CorporateChat.build/Objects-normal/i386/TC_LoginDataController.dia -c /Users/admin/Documents/Kush\ 
InfoSystems/IOS\ Project/CorporateChat/CorporateChat/TC_LoginDataController.m -o /Users/admin/Library
/Developer/Xcode/DerivedData/CorporateChat-egudgkrhstksmbhhcldjmempbwsj/Build/Intermediates

/CorporateChat.build/Debug-iphonesimulator/CorporateChat.build/Objects-normal

/i386/TC_LoginDataController.o

    fatal error: file '/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform
    /Developer/SDKs/iPhoneSimulator7.0.sdk/usr/include/objc/NSObject.h' has been modified since the 
    precompiled header '/Users/admin/Library/Developer/Xcode/DerivedData/ModuleCache/1X5NZJEZL1PED
    /ObjectiveC.pcm' was built

    note: after modifying system headers, please delete the module cache at '/Users/admin/Library
    /Developer/Xcode/DerivedData/ModuleCache/1X5NZJEZL1PED'
    1 error generated.

I am getting such 5 errors with SBJasonStreamWriterAccumelator.m, SBJasonStreamParserAccumelator.m, SBJasonStreamParseState.m, SBJasonWriter.m and one of my implementation class. I have just added SBJason to the project, not implemented any feature.

Can anyone please help me get my project build succeed. From start I am getting Build Failed only. My motto is I want the app to execute on most of the platforms - s oI plan to support from 4 to latest i.e. 7. Am I missing or need any corrections in any project settings !!

Do I need to do any setting changes or what's causing this errors. Please help me.

Thanks

Answer 1

Thanks to all friends. Nothing above helped, but certain changes in Project & Build settings helped me solve the problem.

I changed the following and then got Build Succeeded. * Deployment Target - changed from 7 to 6.0 In Build Settings :- * Base SDK - from "Latest iOS 7.0" to "iOS 7.0" * iOS Deployment Target - Changed from 7.0 to iOS 6.0

Shared me solution as it might help someone else like me.

Wondering why changing from 7.0 to 6.0 worked ??? Does this mean that 7.0 is not stable or compatible ??