Article - CS272971
Error "Attempt to add item '<Channel.Device.Tag>' Failed" in PTC Kepware Products
Modified: 06-Nov-2025
Applies To
- Kepware Server (formerly KEPServerEX) 5.20.396.0 N/A to 6.18
- ThingWorx Kepware Server (legacy) 8.0 N/A to 6.18
Description
- Tag addition request by client application or Kepware function such as Data Logger plug-in failed
- For example launch Kepware Quick Client and automatically build client project
- <Channel>.<Device> group is created in project while target tag is not added to the group
- For example launch Kepware Quick Client and automatically build client project
- The event log shows failed attempts to add items that no longer exist
- KEPServerEX Event log Error
Attempt to add item '<Channel.Device.Tag>' failed
This is a printer-friendly version of Article 272971 and may be out of date. For the latest version click CS272971