How do I install a plugin for a project with only binary files?

Hello!

I am trying to install a custom plugin without having the source code, I only have the file

  • .uplugin

and binary files

  • .modules
  • .dll
  • .pdb

When I normally copy the plugin files to the Plugins folder, I get an error when building.
Could not find definition for module ‘Plugin Name’, (referenced via default plugins -> Plugin Name.plugin).

What might be the problem? and does the build.cs file need to be installed?
Thanks!