.Net compiled dll not working on another machine

Hi I have this web app that uses Matlab generated .Net dll, it works perfectly on my Win8 64 bit development machine, but when I move my project to Windows 2008 Server 64bit box. It breaks. I am using MCR Installer 7.16 that was created with the R2011b and installed it on deployment machine. I get following error:

2012-08-21 12:26:09,977 [6] ERROR System.TypeInitializationException: The type initializer for 'MathWorks.MATLAB.NET.Arrays.MWNumericArray' threw an exception. ---> System.TypeInitializationException: The type initializer for 'MathWorks.MATLAB.NET.Arrays.MWArray' threw an exception. ---> System.TypeInitializationException: The type initializer for 'MathWorks.MATLAB.NET.Utility.MWMCR' threw an exception. ---> System.DllNotFoundException: Unable to load DLL 'mclmcrrt7_16.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E) at MathWorks.MATLAB.NET.Utility.MWMCR.mclmcrInitialize2(Int32 primaryMode) at MathWorks.MATLAB.NET.Utility.MWMCR..cctor() --- End of inner exception stack trace --- at MathWorks.MATLAB.NET.Arrays.MWArray..cctor() --- End of inner exception stack trace --- at MathWorks.MATLAB.NET.Arrays.MWNumericArray.get__Inf() at MathWorks.MATLAB.NET.Arrays.MWNumericArray..cctor() --- End of inner exception stack trace --- at MathWorks.MATLAB.NET.Arrays.MWNumericArray..ctor(Array array)

Answer 1

[Titus Edelhofer]

Hi,

the error message is saying that the MCR is not installed correctly, see e.g. http://www.mathworks.de/support/solutions/en/data/1-1IW46N/

Some things to check: is the PATH variable set correctly (see abov solution)? Did you take the 64Bit MCRInstaller from your 64Bit MATLAB installion (easy check: was it installed in "C:\Program files" or "C.\Program Files (x86)"?

Titus