2014 hardware support error

when i try to install a hardware support package for MATLAB 2014a, i get this error message "The specified key is not present in this container" what is the reason and how to solve it

Answer 1

[elecom]

Maybe I have found the solution. If you download some files before(i.e.,the installation was interrupted for some reason), you need to delet those files (folders)and try again.