Purpose: for users and developers to list error messages they encounter in Tcl and for others to explain some of the possible causes (and solutions) for these msgs. See also [Common Tcl Error Messages and Possible Explanations] .

----

Some common errors:

   * [X server insecure (must use xauth-style authorization)]

[Tk] requires you to have a secure X server before you can use the send command. See http://ce-toolkit.crd.ge.com/tkxauth/ for instructions on how to make your server secure.

   * extra tokens at end of expression while executing [[information appears to be missing here]]

   * invalid filter type 253
Happens when using image create photo 
image filters could be better documented and I don't know how to get a list of installed ones at runtime.

<<categories>> Debugging