我剛剛從http://www.xiph.org/downloads/（http://downloads.xiph.org/releases/ogg/libogg-1.3.0.tar.gz）下載了libogg，我正在嘗試編譯該包中提供的Ogg.xcodeproj項目。當我嘗試建立，我得到以下錯誤：使用Xcode 4編譯libogg
The run destination My Mac 64-bit is not valid for Running the scheme 'Ogg'.
The scheme 'Ogg' contains no buildables that can be built for the SDKs supported by the run destination My Mac 64-bit. Make sure your targets all specify SDKs that are supported by this version of Xcode.
，我收到了類似的錯誤，如果我試圖使用靜態庫，而不是框架：
The run destination My Mac 64-bit is not valid for Running the scheme 'libogg (static)'.
The scheme 'libogg (static)' contains no buildables that can be built for the SDKs supported by the run destination My Mac 64-bit. Make sure your targets all specify SDKs that are supported by this version of Xcode.
再次，這是剛剛開場該項目在Xcode 4.3.2第一次，並試圖建立。我根本沒有改變項目文件。
任何人都可以指出我的方向來解決這個問題嗎？
