How to resolve coder toolbox error message related to .dll files?

I was trying to convert a simple addition function in matlab to c code as a practice work. when typed coder in command window, I got the error message related to dll files, as pasted below. Please, suggest a solution to resolve the error.

function code:

function m=fact(n)
%#codegen
coder.inline('never')

m=1;
for x=1:n
 m=m*x;
end
end

in command window:

>> coder
MATLAB:dispatcher:loadLibrary Can't reload 'C:\Program Files\MATLAB\R2012b\bin\win64\dastudio.dll'.
Undefined function or variable 'emlcoder.HardwareImplementation'.

Error in C:\Program
Files\MATLAB\R2012b\toolbox\coder\coder\private\getHardwareTypeNames.p>getHardwareTypeNames (line 8)

Error in C:\Program Files\MATLAB\R2012b\toolbox\coder\coder\emlcprivate.p>emlcprivate (line 18)

Undefined function or variable 'emlcoder.HardwareImplementation'.

Error in C:\Program
Files\MATLAB\R2012b\toolbox\coder\coder\private\getHardwareTypeNames.p>getHardwareTypeNames (line 8)

Error in C:\Program Files\MATLAB\R2012b\toolbox\coder\coder\emlcprivate.p>emlcprivate (line 18)

Undefined function or variable 'emlcoder.HardwareImplementation'.

Error in C:\Program
Files\MATLAB\R2012b\toolbox\coder\coder\private\getHardwareVendorNames.p>getHardwareVendorNames (line 7)

Error in C:\Program Files\MATLAB\R2012b\toolbox\coder\coder\emlcprivate.p>emlcprivate (line 18)

Undefined function or variable 'emlcoder.HardwareImplementation'.

Error in C:\Program
Files\MATLAB\R2012b\toolbox\coder\coder\private\getHardwareVendorNames.p>getHardwareVendorNames (line 7)

Error in C:\Program Files\MATLAB\R2012b\toolbox\coder\coder\emlcprivate.p>emlcprivate (line 18)

MATLAB:dispatcher:loadLibrary Can't reload 'C:\Program Files\MATLAB\R2012b\bin\win64\dastudio.dll'.
Caught "std::exception" Exception message is:
FatalException(unknown)
MATLAB:dispatcher:loadLibrary Can't reload 'C:\Program Files\MATLAB\R2012b\bin\win64\rtw_core.dll'.
com.mathworks.jmi.MatlabException: FatalException(unknown)
  at com.mathworks.jmi.NativeMatlab.SendMatlabMessage(Native Method)
  at com.mathworks.jmi.NativeMatlab.sendMatlabMessage(NativeMatlab.java:219)
  at com.mathworks.jmi.MatlabLooper.sendMatlabMessage(MatlabLooper.java:120)
  at com.mathworks.jmi.Matlab.mtFevalConsoleOutput(Matlab.java:1608)
  at com.mathworks.project.impl.model.MatlabEnumOptionExpression.evaluate(MatlabEnumOptionExpression.java:97)
  at com.mathworks.project.impl.model.Configuration$EnumOptionsGenerator.generateValue(Configuration.java:1861)
  at com.mathworks.project.impl.model.VariableGraph.generateDefaults(VariableGraph.java:423)
  at com.mathworks.project.impl.model.VariableGraph.setDefaultValue(VariableGraph.java:321)
  at com.mathworks.project.impl.model.Configuration$MatlabBasedDefaultGenerator$1.run(Configuration.java:1686)
  at com.mathworks.project.impl.model.MatlabExpression$4.completed(MatlabExpression.java:197)
  at com.mathworks.jmi.MatlabMCR$CompletionHandler.messageReceived(MatlabMCR.java:1574)
>>

Answer 1

[vijay]

Sorry that was a factorial function I was trying to implement.