常见问题

1.ld: file not found  

ld: file not found: /Users/chenweidong/Library/Developer/Xcode/DerivedData/WanHao-bgcnskgmqpeizsfmbpcbxnysukqu/Build/Products/Debug-iphoneos/WanHao.app/WanHao

clang: error: linker command failed with exit code 1 (use -v to see invocation)

解决方案： 修改build setting中的product名字