# Warning in log - Channel is not set **URL:** \ **Category:** Ignition\ **Tags:** perspective\ **Created:** [April 11, 2024, 5:53am UTC](https://forum.inductiveautomation.com/t/warning-in-log-channel-is-not-set/88678 "2024-04-11T05:53:00Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![Dharani\_T](https://avatars.discourse-cdn.com/v4/letter/d/bc8723/32.png) [@Dharani\_T](https://forum.inductiveautomation.com/u/Dharani_T)\ **Post date:** [April 11, 2024, 5:54am UTC](https://forum.inductiveautomation.com/t/warning-in-log-channel-is-not-set/88678/2 "2024-04-11T05:54:09Z")
Are you triggering this navigation based on any condition? Also have a look on, > [@Error when using 'system.perspective.openPopup'](https://forum.inductiveautomation.com/t/error-when-using-system-perspective-openpopup/74990): > > In Perspective, I use this methodology of configuring my params from my main view and passing them into a global popup view to get a response back from the end user, which then is fed back into the main view via message handlers. I have a list of param templates that I use for standard popups. Things like "Please Wait". "Cancel Confirm", "Submit Data", "Scrap Unit", etc. def BadInput(sLotName): sPrimaryMsg = 'Material Lot ' + str(sLotName) + ' Not Found, has already been Used or Scrapped.' … --- _[View the full topic](https://forum.inductiveautomation.com/t/warning-in-log-channel-is-not-set/88678)._