问命令/usr/bin/codesign失败，退出代码1

EN

当我构建我的项目时，我会得到以下错误：

"/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin“CodeSign”

/Debug-iphoneos/MyApp.app“cd /Users/cracker/Desktop/MyApp/MyApp setenv PATH _CODESIGN_ALLOCATE_ setenv _CODESIGN_ALLOCATE_ /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate /usr/bin/codesign -f -s "iPhone Developer: xxxxxxxx (D492H27WDR)”-resource-rules=/Users/crackers/Desktop/MyApp/MyApp/build/Debug-iphoneos/MyApp.app/ResourceRules.plist“-应享权利"/Users/crackers/Desktop/MyApp/MyApp/build/MyApp.build/Debug-iphoneos/MyApp.build/MyApp.xcent”"/Users/crackers/Desktop/MyApp/MyApp/build/Debug-iphoneos/MyApp.app“

/Users/crackers/Desktop/MyApp/MyApp/build/Debug-iphoneos/MyApp.app:对象文件格式无效或不合适的命令/usr/bin/codesign失败，退出代码1

我的mac中同时安装了Xcode3.x和Xcode4.x (iOS5测试版)。几周前一切都很好。所有的证书都很好。所有证书状况良好。

我已将Xcode文件移至新目录。在那之后，我得到了这个错误。