TCM is not a perfect program ![[*]](foot_motif.gif)
and it
is under continuous development.
So it can happen that the internal graph, a shape view or a table
in the editor becomes inconsistent . Therefore,
assertions are built-in in the code. They are used
for internal consistency checking or for checking if a command
can be executed safely. They prevent harm as much as possible.
When these assertions fail, warning messages are added to the
message log dialog and the message log dialog is displayed. The
messages contain amongst others the source code file and line
number where the assertion was checked and failed. This does not
say much to an ordinary user, but they can be very helpful for
us to fix bugs. So when you send a bug report to us, you should
include these assertion failed messages. Furthermore, as the
diagram file is in ASCII, you can also include a faulty document
as plain text in your e-mail.