Skip migrating installed_packages.json

common/settings/settings_manager.cpp

@@ -430,6 +430,10 @@ public:
             return wxDIR_CONTINUE;
         }
 
+        // Skip migrating PCM installed packages as packages themselves are not moved
+        if( file.GetFullName() == wxT( "installed_packages.json" ) )
+            return wxDIR_CONTINUE;
+
         // Don't migrate hotkeys config files; we don't have a reasonable migration handler for them
         // and so there is no way to resolve conflicts at the moment
         if( file.GetExt() == wxT( "hotkeys" ) )