How do I use UProceduralMeshComponent? (can't #include)

Sometimes this happens. Watch out !

1>WARNING : warning : Plugin ‘xxxxx’ does not list plugin ‘ProceduralMeshComponent’ as a dependency, but module ‘xxxxxx’ depends on ‘ProceduralMeshComponent’.

This happens because you have to add the plugin to your uplugin file, in case you are building a plugin not a project using this other plugin:

 "Modules": [
     {
       "Name": "MyPlugin",
       "Type": "Runtime",
       "LoadingPhase": "Default"
     }
   ],
   "Plugins": [                       // <--
     {                                // <--
       "Name": "AdditionalPlugin",    // <--
       "Enabled": true                // <--
     }                                // <--
   ]