Problem

In the text that's a tag >cell< or tabulation characters | or » on wrong positions.

Cause

Sometimes, this error is reported when user presses a key TAB or SHIFT+TAB inadvertently and therefore inserts the character » or | in text.

Solution

Switch to source pane, display tags, and then double-click the line with this error message to place cursor before the error point. Remove those characters from text.