Hi All,<br>I'm new in GME and on this forum and I need your help. I'm using GME11 for metamodeling and having trouble implementing constraints on metamodel elements. I've relied on both the online tutorial ( <a href="http://w3.isis.vanderbilt.edu/Projects/gme/Tutorials/Tutorial3.html">http://w3.isis.vanderbilt.edu/Projects/gme/Tutorials/Tutorial3.html</a>) and the User manual (which is based on GME5 but refers to OCL 2.0 ) but nothing works. Using the constraint manager to specify a simple constraint like the following (valid according to OCL2.0) <i>context Connector inv: self.NbEquation = 0 </i>returns the following error: <i>At Token ["context"] Expression cannot be parsed.</i> What does this mean? Can someone refer me to the appropriate and complete OCL/MCL specification documents that is/are used for constraints modeling with GME11?<br>
Thank you very much.<br>Leo <br>. <br>