This error means that the dashboard you have created is newer than the version of Active Console that is has been imported into. For example if you create a dashboard in version GA5.0 and then save the adb file. If then you distribute the adb file to someone else who is running a version older than GA5.0 you will get error messages and its likely the dashboard may be deficient or not load at all.
If you have been provided with an adb file which you are trying to Import into your Active Console you might see the following error dialog
Creating dashboards on a newer Active Console version and then trying to use it on an older version is not supported.