Why do I receive "Error in <Component​_name>.Cla​ss1.1_0" in Excel while using dll generated from MATLAB Builder EX in R2013b

I am able to see the function in Excel but when I execute the function, I encounter the error "Error in <Component_name>.Class1.1_0" in Excel.

 

Answer 1

[MathWorks Support Team]

This is caused by "mwcomutil.dll" and "mwcommgr.dll" files not being registered. Please follow the steps below in order to register the dlls.

For 64 bit MATLAB

Development machine:

regsvr32 <matlabroot>bin\win64\mwcommgr.dll

regsvr32 <matlabroot>bin\win64\mwcomutil.dll

regsvr32 <project_dll_dir>\projectdll_1_0.dll

Deployment machine:

regsvr32 <mcrroot>\runtime\win64\mwcommgr.dll

regsvr32 <mcrroot>\win64\mwcomutil.dll

regsvr32 <project_dll_dir>\projectdll_1_0.dll

  For 32 bit MATLAB

Development machine:

regsvr32 <matlabroot>\bin\win32\mwcommgr.dll

regsvr32 <matlabroot>\bin\win32\mwcomutil.dll

regsvr32 <project_dll_dir>\projectdll_1_0.dll

Deployment machine:

regsvr32 <mcrroot>\bin\win32\mwcommgr.dll

regsvr32 <mcrroot>\bin\runtime\win32\mwcomutil.dll

regsvr32 <project_dll_dir>\projectdll_1_0.dll

 

Please make sure to use 32 bit MATLAB with 32 bit Version of Microsoft Excel and 64 bit MATLAB with 64 bit version of Microsoft Excel.