xcode 編譯問題

1. invalid
deployment target for -stdlib=libc++ (requires iOS 5.0 or later)

解決辦法：

這個是由於檔案編譯不支援

可以將target-> Apple LLVM complier 4.1-Language ->C++ standard Library 改成Compiler Default.

2.Undefined
symbols for architecture armv解決辦法：看下是否是沒有添加libz.1.2.5.dylib的靜態庫。3. does
not contain a(n) armv7s slice

這個是由於引入外部static lib時候報錯，由於xcode升級成4.5後，編譯結構有armv7和armv7s，如果這個時候編譯會告知編譯有問題，不支援armv7s,修改的方式如下：

Got the same problem since updating XCode. To work around it, in the XCode project, change the Architecture from "$(ARCHS_STANDARD_32_BIT)" to
armv7. "$(ARCHS_STANDARD_32_BIT)" expands to something like armv7, armv7s and the current unity editor doesn't seem to export the correct symbols for armv7s.

4.Undefined
symbols for architecture 錯誤解決

 

這個錯誤是由於資源無法編譯通過報出的。一般是從另外一個項目直接複製到新項目導致新項目無法編譯出現的問題。
解決辦法如下

• Go to the Target in the navigator menu

• Click on the "Build Phases" tab

• Add the .m file to "Compile Sources" (either drag it across,
  or use the + button)

• Add the .xib to "Copy bundle resources"

• Clean and build

5.解決自動產生Connection時發生的xcode
could not insert new xxx for的問題

 

情境是在storyboard下自動將組件拖入標頭檔代碼中，產生自動連接模版，但是有時候會報錯。解決辦法如下：

• Close your project.
• Go to the ~/Library/Developer/XCode/DerivedData folder and REMOVE all subfolders there referencing the project you are working on.
• Open your project in XCode. The problem should be fixed now.