Hello everyone,

When I run a fortran umat code in abaqus, I got error with the message below:

forrtl: severe (9): permission to access file denied, unit 500, file C:\\Users\\wenw2\\AppData\\Local\\Temp\\wenw2_test1_7218

I check the permission status in C:\\Users\\wenw2\\AppData\\Local\\Temp\\ and I confirm it isn’t a permissions issue.

The message is weird because the unit number 500 is what I used to read a external file (if I change this unit number in the code, the one in error message changes too), but the file above is some kinds of temporary scratch file, not the one in the code at all.

Is there anyone knows how to deal with this error? I really appeciate!

I am using abaqus 2019 in Win10, with VS2017 and intel fortran 2018.