Errors in MeVisLab or one of its loaded modules are printed to the MeVisLab Debug Console. In addition to that, the MeVisLab macOS edition also overlays the MeVisLab icon in the dock with an error badge (Figure 2.1, “Error badge on the MeVisLab icon”).

Figure 2.1. Error badge on the MeVisLab icon

To clear the error state and to remove the badge from the icon, right click in the MeVisLab Debug Console and select Clear from the context menu.