Plug-ins in unity are called packages or packages. In the development of hololens, it is often necessary to delete conflicting plug-ins due to various plug-in conflicts. For example, MRTK3 and MRTK2 plugins will conflict. So you need to use the following method to remove conflicting plug-ins.
Click on the menu bar window — Package Manager — select the package you want to delete and click remove. If it doesn’t work, just restart the editor and recompile it.
