This message more than likely indicates that the settings on your computer are not set to the required settings.
Click the Apple icon, and select “System Preferences.” In the window that opens next, select “Displays” (second row, second icon). There are two tabs: Display and Colors. In the “Display” tab, the colors should be set to millions. Quit System Preferences.
Next, open X11. From the menu, select “Preferences.” Next, select “Output” from the two tabs that appear. The color setting here should be set to “From Display.” Quit X11, quit browser (if open). Start over. IF the same error message appears again, reboot your system.
See “Required Components & Settings” for more information