If you encounter difficulty when you try this test, then there is a problem in your installation, and you need to correct it before you begin real work with ILOG CPLEX.

For example, if you get a message from the compiler such as

ilolpex3.cpp 1: Can't find include file ilcplex/ilocplex.h

then you need to verify that your compiler knows where you have installed ILOG CPLEX and its include files (that is, its header files).

If you get a message from the linker, such as

ld: -lcplex: No such file or directory

then you need to verify that your linker knows where the ILOG CPLEX library is located on your system.

If you get a message such as

ilm: CPLEX: no license found for this product

or

ilm: CPLEX: invalid encrypted key "MNJVUXTDJV82" in "/usr/ilog/ilm/access.ilm";run ilmcheck

then there is a problem with your license to use ILOG CPLEX. Review the ILOG License Manager User's Guide and Reference to see whether you can correct the problem. If not, contact the customer support hotline and repeat the error message there.

If you successfully compile, link, and execute one of the examples in the standard distribution, then you can be sure that your installation is correct, and you can begin to use ILOG CPLEX with ILOG Concert Technology seriously.