I cant edit the components!!! Unity - 2018.1.Of2 (64- Bit)

Thanks,I cant edit the things like cubes, lights, cameras, player settings and anything else. It keeps saying “The module which implements this component type has been force excluded in player settings. This object will be removed in play mode and from any builds you make”. If anyone knows the solution to this, I need it ASAP.

Thanks.

Delete the library folder (with unity closed). It’ll be in your project folder. (same directory that holds your Assets folder)

Having the same issue with unity 2018.2.of2 (64- Bit) if anyone knows of why this is?

Replace manifest.json with a fresh project’s manifest.json or from another project