Chapter 9. Trouble Shooting

Here are a few problems that users have encountered when first using Thuban.

• After adding two or more layers nothing is drawn in the map window.

  This is probably because the layers have different projections. Projections must be set on all layers and on the map itself if the layers' projections are different.

• Thuban crashes on startup with the error NameError: global name 'False' is not defined.

  True and False were only introduced in Python 2.2.1. Thuban depends on at least Python 2.2.1.

• After compiling Thuban, Thuban crashes with an error similar to ImportError: /usr/local//lib/thuban/Thuban/../Lib/wxproj.so: undefined symbol: __gxx_personality_v0

  Thuban depends on the wxWindows library. If Thuban is compiled with an incompatible version of the compiler than wxWindows was compiled with this error may occur. Try compiling with a different version of the compiler.

If an error occurs Thuban will display a dialog indicating the error before closing. The text should be copied and reported to the Intevation bugtracker . More information about the system is available from Help->About box. This should also be included in the bug report.