.. index:: Errors
.. index:: Trouble shooting

Errors and trouble shooting
===========================

BeamScheme has sophisticated error checking and detection. Error messages and warnings
are displayed in the Status Bar. During the operation of
the program you may encounter a variety of warning and error messages. There
are three types of messages.

#) Informational: These give details of the program's working. These messages
   have a green background. No action is required they are for information only. For
   example the startup message "BeamScheme initialised correctly'.
#) Actional: The program is requiring some kind of response from you. These messages
   have a yellow background. For example "Click Point A"
#) Error: The program has detected an error condition. These messages are displayed
   with a red background. Some errors will not allow you to continue until the 
   error has been corrected. In this case the area or areas with the error will
   be highlighted in red.


Some common error messages and their causes are discussed below:

.. toctree::
   :maxdepth: 2

   BSHelp12-1.rst
   BSHelp12-2.rst
   BSHelp12-3.rst

Other errors may from time to time be generated by the operating system or math subsystem. These will generally be in the form of a dialogue box requiring acknowledgement.
Please refer to the appropriate documentation and/or contact :ref:`Technical Assistance`.