This problem has occurred both with 2.0.5 and svn 13081. Am building from source in a BLFS-7.4 environment, with --disable-ffmpeg (my ffmpeg version is too new, apparently). Linux kernel is 3.13.3. After the dialog box containing the error (subject line; also tells me to report the problem), audacity comes up but all controls are black. Apparently there is an issue with the contents of ThemeAsCeeCode.h? Searched forum for “default theme”, could not find postings re: my problem. Apologize in advance if I mis-searched. Many thanks,
Audacity has experimental Theme support which is disabled by default. This has not been worked on for quite a while so I don’t know how well it will work, but it can be enabled by building with Theme support enabled in Experimental.h (search the file for #define EXPERIMENTAL_THEME_PREFS )
FWIW, (unmodified) Audacity displays fine on Debian (which has a dark theme by default).
You may be able to get ffmpeg working by specifying “local library” rather than “system library” for ffmpeg.
I am not all that familiar with OS themes. I am not using a desktop environment like gnome or kde. I am using windowmaker as the window manager, and run everything else from the dock or from an xterm window. I am sure there is something that I am missing in doing it this way, although audacity 1.2.6 works fine in a very similar (but older) environment. Can you post a link to a light theme ImageCache.png file that I could try?