Error when Import C plus library to matlab

Hi everyone,

I am trying to import a C++ library (.dll,.lib) to Matlab.

But there is some error as follows

Error loading library intermediate output follows.
The actual error is at the end of this output.
*********

Type 'intclasscomplib{public:void' was not found.  Defaulting to type error.

Found on line 21 of input from line 20 of file CompLib.h
*********
Error using loadlibrary
Building myCppLib_thunk_pcwin64 failed.  Compiler output is:
cl -I"G:\Program Files\MATLAB\R2016a\extern\include"  /W3  /nologo  /D_CRT_SECURE_NO_DEPRECATE
/D_SCL_SECURE_NO_DEPRECATE /D_SECURE_SCL=0   -

"myCppLib_thunk_pcwin64.c" -LD
-Fe"myCppLib_thunk_pcwin64.dll"
myCppLib_thunk_pcwin64.c
\CompLib.h(6) : error C2061: syntax error : identifier
'complib'
\CompLib.h(6) : error C2059: syntax error : ';'
\CompLib.h(6) : error C2449: found '{' at file scope (missing
function header?)
\CompLib.h(20) : error C2059: syntax error : '}'
myCppLib_thunk_pcwin64.c(50) : fatal error C1004: unexpected end-of-file found

I think this guy had a same problem:

https://ofekshilon.com/2016/07/15/on-matlabs-loadlibrary-proto-file-and-pcwin64-thunk/

But there is no solution for this problem.

I have succeed in importing the library to another application in Visual studio so surely my librariy is proper.

Please suggest me as well as other customer a solution for this problem.

Thank you.