I'm using Ubuntu 20.04 and it worked fine for months now. yesterday I encountered this issue. When I update using GUI it says to check my internet connection. then I tried in terminal and it shows the following:
Hit:4 http:
Hit:6 https:
Get:1 http:
Get:2 http:
Get:3 http:
Get:5 http:
Hit:7 http:
Err:1 http:
Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
Err:2 http:
Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
Err:3 http:
Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
Err:5 http:
Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
Hit:8 http:
Reading package lists... Done
N: See apt-secure(8) manpage for repository creation and user configuration details.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
E: The repository 'http:
E: Failed to fetch http:
N: See apt-secure(8) manpage for repository creation and user configuration details.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
E: The repository 'http:
E: Failed to fetch http:
E: Failed to fetch http:
E: The repository 'http:
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http:
E: The repository 'http:
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
Can sombody please help me to fix this issue. Thank you.