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Trial version of ifort 18 requires license file even though I entered serial number


I am in Day 2 of an Intel Fortran trial.  I was going to try building an old application with ifort 20, but ran into a link problem that I have documented as another topic.  The earliest version available is 18, and I once built the application using that, so I decided to give it a try.  I installed ifort 18 using my serial number, which was accepted.  But when I try to use the compiler, I am told that it can't find the license file.

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Black Belt Retired Employee

All licensing questions need to go through  I am not sure how the trial versions work, but normally when you enter the serial number during install, it copies a license file onto your system.