warning: could not load any Objective-C class information. This will significantly reduce the qualit

- (void)setUserModel:(UserModel *)userModel{
    self.userModel = userModel;

}

这种代码会报错:

warning: could not load any Objective-C class information. This will significantly reduce the qualit

这是因为“self”导致了无限循环

改为_userModel = userModel;就好了

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