I found facing error showing "Application Conversion Failure" error.

In help guide, it mentioned like this,

https://www.vtscada.com/help/Content/Dialogs/10607%20Application%20conversion.htm?Highlight=Application%20Conversion%20Failure

The selected application could not be converted to the current version of VTScada. The application will not be modified.

I don't understand clearly.

Does it mean I need to switch back to previous version? Cannot be used in current version?

Please clarify how to resolve it step by steps?

Hi John, in what version of VTScada did you create this app. Also, what kind of license to did you use at that time (90-day trial, VTScadaLIGHT, paid license) and are you using a different kind of license now?

Installed VTLight version accidentally.
Right away, reinstalled Runtime license.

And in below link, I see this one. Will it be the solution?

https://www.vtscada.com/help/Content/Op_Welcome/Wel_UpgradeNotes.htm

• If your VAM has an instance of the Training Simulator, uninstall it. The simulation code is subject to change from one version to another and older versions are sometimes not compatible with the current version of VTScada. If you are still using the simulator, then after upgrading reinstall from the newest .Snapshot file in the Examples folder.