I have a problem when i want to install gnome-tweak-tool in terminal
sudo apt-get install gnome-tweak-tool
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
gir1.2-gdesktopenums-3.0 gir1.2-gnomedesktop-3.0 gnome-settings-daemon gnome-shell-common iio-sensor-proxy mutter-common
The following NEW packages will be installed:
gir1.2-gdesktopenums-3.0 gir1.2-gnomedesktop-3.0 gnome-settings-daemon gnome-shell-common gnome-tweak-tool iio-sensor-proxy mutter-common
0 upgraded, 7 newly installed, 0 to remove and 0 not upgraded.
Need to get 633 kB/1,949 kB of archives.
After this operation, 13.2 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1http://archive.ubuntu.com/ubuntu xenial/universe amd64 gnome-shell-common all 3.18.4-0ubuntu3 [609 kB]
Err:2 http://archive.ubuntu.com/ubuntu xenial/universe amd64 iio-sensor-proxy amd64 1.1-1
400 Bad URI [IP: 91.189.88.161 80]
Fetched 609 kB in 5s (111 kB/s)
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/universe/i/iio-sensor-proxy/iio-sensor-proxy_1.1-1_amd64.deb 400 Bad URI [IP: 91.189.88.161 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
I did --fix-missing but nothing work ...

ping archive.ubuntu.com? Can you dowget http://archive.ubuntu.com/ubuntu/pool/universe/i/iio-sensor-proxy/iio-sensor-proxy_1.1-1_amd64.deb? If yes, then the install should work. If not, you still have a network problem.{}button in the editor toolbar) will be much more readable there; alternatively you can use a pastie service for longer listings and include the link of your pastie in your question. Overall it’s best to have everything relevant in one place. Additionally, comments may be deleted for various reasons. Thanks.