Why is the "!" icon shown on a MB Panel, but nothing happens when I click it?

FAQ #101280

 

Symptom
The small button with the "!" appears on a MB panel PCD7.D4xxx, but no error message is shown when clicking it

Reason
This behavior can be observed if the file "MsgBox.teq" is not present in the Web Project, or if the file can not be found (e.g. if it is stored on the PCD, but the connection is broken).
Note that it is also possible that the file is stored on the flash memory of the MB Panel, but it can not be found because the "Local file search" is disabled.

Solution
In order to have the message box shown in every case, choose one of the following solutions:

• Store the "MsgBox.teq" in the MB panel and select the option "local file search before remote" or "remote file search before local".
• Store the "MsgBox.teq" in the PCD and enable the  "File cache" option on the MB Panels.

Remark
Note that the message box is not shown in case the option "File cache" s disabled and the "MsgBox.teq" is in stored in the PCD (and not in the MB panel).