Error when installing SNOPT on matlab

[yang lingyi]

I run into some problems when i install snopt and sqopt installation package in Matlab interface. I have added license files to environment variables and .mexw64 files to the matlab directory inside the optimization package. Also I set add the snopt package to the matlab path in the matlab interface. 

But the problem is when I test the program and type runNPexamples, the error comes out as forrtl severe (9) permission to access file denied unit 9,file C:\Program Files\MATLAB\R2018a\bin\t1diet.out. The error page is attached to this email under. And when i debug the code, the code that goes wrong is snoptmex( openprintfile, filename );