installing does nothing

[aaaaaaaaahhhhh]

when i press install in blender, nothing happens. doesn't show up in the addon list. no errors in the console. ive tried both the master version and the 2.8 and they both don't work. how do i fix this?

[Dhrukiashmi]

For blender version higher than 2.8x :

Read this: https://github.com/dtzxporter/io_model_semodel/issues/10#issuecomment-875321353