ifort: error #10001: could not find directory in which g++ resides

 I have a problem when compiling a fortran code with Intel Fortran .

I previously worked with Intel Fortran in Ubuntu 8.04 and 10.04 platforms (Intel fortran 10.1.018 , 10.0.23 and 10.1.xxx ) without

problem. Now in Ubuntu 12.04 I get the following error message:

ifort: error #10001: could not find directory in which g++ resides

Could somebody guide me to reset the paths ? (providing that is the problem)

Thank you in advance