TomD Posted December 11, 2015 Report Share Posted December 11, 2015 Have updated VisiLogic to 9.8.2 from 9.5.0 with also an OS update on my Win7 desktop and have an error "prvChangeGuiByPLCType9Invalid Tools collection Index" i also have a laptop i did similiar update that is XP that does not have this error. uninstalled twice and installed twice and same....UAC disabled. clicking Ok sends the error away. TomD Quote Link to comment Share on other sites More sharing options...
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