如何从c++/cli静态函数返回托管类

我正在尝试使用c++/cli代码从c#调用非托管函数。

我有类似这样的代码:

MyFileWrapper MyFileWrapper::ReadMyFile(System::String ^fileName)
{
    auto nativeMyFile=MyFile::ReadMyFile((char *) 
           System::Runtime::InteropServices::Marshal::StringToHGlobalAnsi(
           fileName).ToPointer());
    MyFileWrapper myFileWrapper=gcnew MyFileWrapper();
     // code will be added to read information from native object and convert them to wrapper properties. 
    return myFileWrapper;
}

但是我得到的错误是

 Error  2   error C2440: 'return' : cannot convert from 'MyFileWrapper' to 'MyFileWrapper'  MyFileWrapper.cpp   
 Error  1   error C3673: 'MyFileWrapper' : class does not have a copy-constructor   MyFileWrapper.cpp   

对于第一个错误，智能感知给出了下面的错误，这个错误有更好的解释:

    IntelliSense: no suitable user-defined conversion from "MyFileWrapper ^" to "MyFileWrapper" exists  

是什么问题，我怎么解决它?

MyFileWrapper^ MyFileWrapper::ReadMyFile(System::String^ fileName)
{
    ...
    MyFileWrapper^ myFileWrapper = gcnew MyFileWrapper();
    ...
    return myFileWrapper;
}