matlab ：Warning: Failed to load MathWorks locale database. Using MathWorks default locale setting instead. 这怎么办啊

Warning: Failed to load MathWorks locale database. Using MathWorks default
locale setting instead.
用的是2010b的matlab，好像之前误删了一个软件就这样了。
>> mex -setup
Can't open perl script "D:Program FilesMATLABR2010bbinmex.pl": No such file or directory
??? Error using ==> mex at 208
Unable to complete successfully.