我有來源的XCode項目幾乎是十來歲。該項目打開,但對項目文件夾的子文說:「丟失的基地SDK」,當我嘗試運行我得到以下錯誤:升級舊的Java Xcode中的Mac應用
The run destination My Mac 64–bit is not valid for Running the scheme 'Coopers (Copied)'.
The scheme 'Coopers (Copied)' 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.
源文件爲這個項目是Java。任何幫助將非常感激。