1.Ad Hoc分发应用
导出Ad Hoc授权应用 Xcode > Product > Archive > Export
安装Ad Hoc分发的应用 Open iTunes > File > Add To Library… > select Ad Hoc provisioning profile and App.ipa > Sync
2.Xcode编译出现如下警告提示：
[WARN]warning: no rule to process file xxx.h’ of type sourcecode.c.h for architecture armv7
解决办法:这是因为检查到有.h文件在编译列表中了。所以只要在列表中去掉就可以了。
点击你的xcode项目文件，然后点击[Build Phases]，确保在[Compile Sources]中没有.h文件。
Reference:Xcode编译提示：warning: no rule to process file ‘xxx.h’ of type sourcecode.c.h for architecture armv7
3.ld: warning: directory not found for option ‘-L/Users/dongmeiliang/Documents/soh.client.iOS/sohiOSApp/sohiOSApp/Component/BaiduMap_IOSSDK_v2-2/Release-iphonesimulator’
Undefined symbols for architecture x86_64: “DDExtractFileNameWithoutExtension”, referenced from: 57-[AJSocketBinaryClientChannel setupReadTimerWithTimeout:]block_invoke76 in libPods-sohiOSApp-AJFrame.iOS.a(AJSocketBinaryClientChannel.o) -[AJSocketBinaryClientChannel doReadTimeout] in libPods-sohiOSApp-AJFrame.iOS.a(AJSocketBinaryClientChannel.o) -[AJSocketBinaryClientChannel endCurrentRead] in libPods-sohiOSApp-AJFrame.iOS.a(AJSocketBinaryClientChannel.o) “OBJC_CLASS$DDLog”, referenced from: objc-class-ref in libPods-sohiOSApp-AJFrame.iOS.a(AJSocketBinaryClientChannel.o) “OBJC_CLASS$_GCDAsyncSocket”, referenced from: objc-class-ref in libPods-sohiOSApp-AJFrame.iOS.a(AJTcpConnector.o) ld: symbol(s) not found for architecture x86_64
解决办法：从输出的日志可以看出问题是出在链接，由Cocoapods管理的第三方库安装后链接配置项没有设置正确，需要手动设置没有被自动链接的库，例如这里我需要链接：-l"Pods-CocoaAsyncSocket"。
4.dyld: could not load inserted library ‘/usr/lib/libgmalloc.dylib’ because image not found
解决办法：Edit Scheme > Run > Diagnostics > Memory Managerment
Malloc uncheck Enable Scribble
uncheck Enable Guard Edges
uncheck Enable Guard Malloc
Reference:xcode : could not load inserted library: /usr/lib/libgmalloc.dylib 的解决
5.APNs服务器地址
答案： gateway.push.apple.com 2195 (Product)
gateway.sandbox.push.apple.com 2195 (Development)
6./Users/user/XCodeWork/iPhoneDev/MyAppSourceFolder/en.lproj/MainWindow-iPhone.xib:
Compilation failed. Unable to write to path:
/Users/user/Library/Developer/Xcode/DerivedData/MYAPPNAME- dudnhxzgpqtcnqcgaguirvkhmvco/Build/Intermediates/ArchiveIntermediates/ MYAPPNAME/InstallationBuildProductsLocation/Applications/MyAppname.app/ en.lproj/MainWindow-iPhone.nib
解决办法：For every xib’s that we’ve problems, in the right panel go to the first tab, “Interface Builder Document” -> “Builds for” and select “iOS 7.0 and Later”. My old configuration was “iOS 4.3 and Later”.
Reference:Interface Builder XIB Error - Unable to write to path
7.duplicate symbol OBJC_METACLASS$_SDWebImagePrefetcher in:
/Users/dongmeiliang/Library/Developer/Xcode/DerivedData/jiaxiaotong-dxrmnnwbexugoqfekesgvdiijcdm/Build/Products/Debug-iphonesimulator/libPods-weima-SDWebImage.a(SDWebImagePrefetcher.o)
/Users/dongmeiliang/Library/Developer/Xcode/DerivedData/jiaxiaotong-dxrmnnwbexugoqfekesgvdiijcdm/Build/Products/Debug-iphonesimulator/libPods-SDWebImage.a(SDWebImagePrefetcher.o)
ld: 727 duplicate symbols for architecture x86_64
解决办法：问题出现的原因是我用CocoaPods管理第三方库，在Build Settings > Linking > Other Linker Flags 里面即显示指定了-l"Pods-SDWebImagePrefetcher",又设置了变量$(inherited)。我去掉$(inherited)就好。
8.2015-04-05 22:35:26.917 weima[67059:2338954] NSScanner: nil string argument
2015-04-05 22:35:26.917 weima[67059:2338954] NSScanner: nil string argument libc++abi.dylib: terminate_handler unexpectedly threw an exception
9.Cannot send push notifications using Javapns/Javaapns SSL handshake failure
解决办法：
123456developer_identity.cer <= download from Apple (aps cert)mykey.p12 <= Your private key (CSR generate private key or install aps cert get a private key both ok)openssl x509 -in developer_identity.cer -inform DER -out developer_identity.pem -outform PEMopenssl pkcs12 -nocerts -in mykey.p12 -out mykey.pemopenssl pkcs12 -export -inkey mykey.pem -in developer_identity.pem -out iphone_dev.p12
Reference:Cannot send push notifications using Javapns/Javaapns SSL handshake failure
10.导航栏如何显示两行文本？
解决办法：After setting up your titleView or titleLabel, call sizeToFit on it, also make sure titleLabel.textAlignment = UITextAlignmentCenter. It’ll be centered in the width of the navbar rather than in the space between the button edge and far edge of navbar.
Reference:Adjusting navigationItem.titleView’s frame?
11.SVN how to resolve “local unversioned, incoming add upon update”
12345$ svn statusD C logs > local unversioned, incoming add upon updateSummary of conflicts: Tree conflicts: 1
解决办法:
12345$ svn resolve --accept working logsResolved conflicted state of 'logs'$ svn revert logsReverted 'logs'$ svn status
Reference:Resolve Tree Conflict SVN (local unversioned, incoming add upon update)
12.Calling a C function from within a function in a .mm file
解决办法：The .mm file is looking to call a mangled version of the function name. You need either BEGIN_DECLS and END_DECLS around the C function declarations seen by the C++-compiled file, or you need to do the equivalent yourself. The idea is to mark those function declarations as extern “C” when seen by an (Obj-)C++ compiler, but not when seen by any other sort of compiler.
Referenc:Calling a C function from within a function in a .mm file
13.Compilation failed. Unable to write to path
1234567891011Underlying Errors: Description: The file “objects.nib” doesn’t exist. Failure Reason: The file doesn’t exist. Underlying Errors: Description: The operation couldn’t be completed. No such file or directory Failure Reason: No such file or directory Description: “DMLUserElementCell~iphone.nib” couldn’t be removed. Failure Reason: The file doesn’t exist. Underlying Errors: Description: The operation couldn’t be completed. No such file or directory Failure Reason: No such file or directory
解决办法：在Target > Build Phases > Compile Sources里去掉出错的nib文件。
Reference:Xcode 5 storyboard compile failure
14.Where iPhoto Pictures are Located and How to Access the iPhoto Library and Picture Files
解决办法：iPhoto 11 (9.0) Photo Library Storage Location:~/Pictures/iPhoto Library.photolibrary/Masters/
Reference:Where iPhoto Pictures are Located and How to Access the iPhoto Library and Picture Files
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