Common Tk Error Messages and Possible Explanations

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:

Tk requires you to have a secure X server before you can use the send command. See 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.