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好的,我有2個項目。我想從項目1導入類文件到項目2.當我導入類文件。我收到一個鏈接錯誤。這是它的樣子。Xcode中的Mach-O鏈接器錯誤
Undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_ClassFile1", referenced from:
objc-class-ref in ClassFile2.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
我該如何解決這個問題?