I have a QM model that has been created using QM Version 5.1.1. Now, when I attempt to open it using QM Version 5.2.5, the following error arises.
If it is not possible to open QM Modeled with older version, now how should I install an olderversions of QM modeling tool.
It is possible to install an older version through Sourcefourge official QP repository.