app desinger:Unable to build Simulink Rapid Accelerator target

I created an app, The error 'Unable to build Simulink Rapid Accelerator target' comes out when i try to package, why?

I 've changed all slx in nomal mode.

警告: 未定义与 'Simulink.ERTTargetCC' 类型的输入参数相对应的函数 'codertarget.updateExtension'。

Unable to build Simulink Rapid Accelerator target.

[hao jiang]

Have you solved this problem? I encountered the same error message.