Read This Before Proceeding :-

U need made a device.json in builds see and copy

     cd vendor/OTA

     nano builds/device.json 

Notes : device=codename (alioth.json)

After copy all in alioth.json and paste in device.json just made and save

To geenerate json will auto made after u build rom.

cd  folder_rom/out/target/product/device/device.json

After copy and paste and builds/device.json

Final uploading........

NOTES:

• Use double quotes for parameters with more than a single word, like maintainer name in the example above.
• All parameters are mandatory.