RuntimeError - PBXGroup attempted to initialize an object with unknown ISA PBXFileSystemSynchronizedRootGroup from attributes: {"isa"=>"PBXFileSystemSynchronizedRootGroup", "exceptions"=>["DADEEEA62D6ED2FD00198F75"], "path"=>"VHDemo", "sourceTree"=>"<group>"}
解决方法:https://blog.csdn.net/qq_34393179/article/details/143022402