If this message comes up after dropping a valve from the library explorer in Automation Studio™, then in order to correct the problem you need to go the root directory of Automation Studio™ 5.4, and then delete Valve.xml file. You may then launch Automation Studio™ 5.4.

If this does not correct the problem, than please contact the technical support from our online technical support portal at http://www.automationstudio.com/EDUC/en/Support/index.htm or at 514-748-8050. Before calling, please make sure to have your Automation Studio™ License Number at hand.