Solve the problem that OBJC_CLASS _ $ _ MBProgressHUD cannot be referenced. mbprogresshud

Source: Internet
Author: User

Solve the problem that OBJC_CLASS _ $ _ MBProgressHUD cannot be referenced (reprinted), mbprogresshud

Undefined symbols for architecture i386:

"_ OBJC_CLASS _ $ _ MBProgressHUD", referenced from:

Objc-class-ref in ViewController. o

Ld: symbol (s) not found for architecture i386

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

The error here is because you did not reference the relevant header file in building phases. Therefore, you only need to add the corresponding. m file in building phase.

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