Compiler driver / backend version mismatch: unset != 900

[nagueda]

Dear all,

I get the following error message when I try to compile a fortran code

Intel Fortran Compiler for 32-bit applications, Version 9.0 Build 20060222Z Package ID: l_fc_c_9.0.033
Copyright (C) 1985-2006 Intel Corporation. All rights reserved.
Compiler driver / backend version mismatch: unset != 900
Be sure compiler driver and backend programs are in the same directory.

Does anybody know how to fix it? I saw a thread realted to this problem in the forum but couldn't figure out what I should do.

Thank you very much,


Neus.

[Kevin_D_Intel]

Somehow you managed to connect incompatible parts of the compiler, specifically a version of the driver (ifort) with an incompatible version of the back-end (fortcom). There's no generic solution to fixing this. You must first determine how the mis-connection occurred to know how to correct it.

You are using a very old compiler. Not that this is a factor in the issue, but if fixing this involves uninstalling and reinstalling the compiler then you might consider upgrading to the latest 11.1 update 7.

The first step is to execute the following two commands to see where these resolve from:

which ifort
which fortcom

Please post the output of these two commands in a reply.

[TimP]

This would occur if you had different major versions of the compiler installed, and set the PATH variable in accordance with one version, but then ran the ifort command of the other one.