can't invoke "winfo" command: application has been destroyed while executing "winfo exists $w" (procedure "ttk::entry::AutoScroll" line 3) invoked from within "ttk::entry::AutoScroll .c" (in namespace inscope "::" script line 1) invoked from within "::namespace inscope :: {ttk::entry::AutoScroll .c}" ("uplevel" body line 1) invoked from within "uplevel #0 $Repeat(script)" (procedure "ttk::Repeat" line 3) invoked from within "ttk::Repeat" ("after" script)