apt-get not working on Begale bone black kernel 3.8.13 and 4.4.113

Sub : apt-get not working on Begale bone black

kernel 4.4.113

kernel 3.8.13

kernel Source code :

1)git clone [https://github.com/beagleboard/linux.git](https://github.com/beagleboard/linux.git)

 following the these steps

[https://embedjournal.com/kernel-compilation-beaglebone-black/](https://embedjournal.com/kernel-compilation-beaglebone-black/)

[2)https://elinux.org/Building_BBB_Kernel](https://elinux.org/Building_BBB_Kernel)

We tried both apt-get is not working and screen shoot also attached.

Waiting for prompt response.

Regards,
Sree

BBB apt-get not working.png