installing Qt ubuntu proxy issue #16601

I am trying to install Qton ubuntu for ( build bitcoin ({ make } command) ) by steps :

sudo apt-get install build-essential

sudo apt-get install qtcreator

sudo apt-get install qt5-default

and I got :

0 upgraded, 186 newly installed, 0 to remove and 0 not upgraded.
Need to get 49.5 kB/52.9 MB of archives.
After this operation, 390 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Err:1 http://archive.ubuntu.com/ubuntu bionic/main amd64 libproxy1v5 amd64 0.4.15-1
  400  Bad URI [IP: 91.189.88.149 80]
Unable to correct missing packages.
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/libp/libproxy/libproxy1v5_0.4.15-1_amd64.deb  400  Bad URI [IP: 91.189.88.149 80]
E: Aborting install.

how can I solve this porblem ? note : my location is syria , and I am runing ubuntu on windows ( WSL ) , without ' Virtual Box ', and I tried to run " psiphon " but the problem still here !

Nowhere in our ubuntu build instructions do we mention installing qt5-default. You might want to try installing the packages listed there instead, or you could try using the depends system.

Regardless, if you are having issues related to internet censorship, this issue tracker is not really the place to discuss/solve them.