Skip midi plugins on lv2 export, not done yet

source/plugin/carla-native-base.cpp

@@ -46,6 +46,10 @@ struct PluginListManager {
                 std::strcmp(desc->label, "pingpongpan") == 0 || std::strcmp(desc->label, "stereoenhancer") == 0 || std::strcmp(desc->label, "vexsynth") == 0)
                 continue;
 
+            // skip midi plugins, not implemented yet
+            if (desc->audioIns == 0 && desc->audioOuts == 0 && desc->midiIns == 1 && desc->midiOuts >= 1)
+                continue;
+
             descs.append(desc);
         }
     }