Developer certificate signing Magic Leap

I've been trying to build one of the example apps in the Unity Magic leap lumin SDK however, i created and included a developer certificate in the unity player settings however when building it still gives me the error that "Package signing requires a valid certificate. please set path to your certificate in Player settings -> Lumin OS -> Publishing settings" although the path is already set up.
The error in console says "Package signing requires a valid certificate". I'm stuck at this and it is urgent can anyone help me.
P.S. i have a magic leap device

 

In my case I hadn't the private key not extracted to the same folder as the cert.

 

Same problem here and NPadrutt's reply helped me.

Make sure <name>.cert and <name>.privkey are in the same folder.

 

Thanks NPadrutt, that was the problem! I still had it in its subfolder adjacent to the cert.

Wish they'd just spell that out in the setup doc.

 

thank you!

 

Thanks