i'm using Ubuntu 16.04 i clicked on Ubuntu software from the application panel and the cursor changed to a circle. but after a few seconds nothing happened. i removed the application icon of Ubuntu software from the panel and started it by searching in the dash. still nothing happened. i removed it through terminal and reinstalled it and tried to open it through terminal and and from dash but nothing happened. but whenever i start the Ubuntu software it's icon is shown in the application panel but omits after a few seconds. how should i deal with this bug.

you may try to execute: software-center from command line and post the output

i tried through terminal too but nothing happened. right now i'm using synaptic package manager but the GUI of Ubuntu software centre is better. that's why i'm looking forward for the solution.

do anyone have any solution to this problem?

Did it ever work correctly?

There are a number of command line switches for apt and apt-get that may clean up the issue.

It may be possible to look at logs. They could be almost anyplace but look under /var to begin.

i was able to open ubuntu software centre through terminal.
sudo -H ubuntu-software
but running "sudo ubuntu-software" or "ubuntu-software" isn't opening the app.
why so?

Think one of those software managers do need to be run in root under sudo. Setting home in switch may just be an oddity of how they wrote the program.
"
-H Set the HOME environment variable to the homedir of the target user
(root by default) as specified in passwd(5). By default, sudo does
not modify HOME (see set_home and always_set_home in sudoers(5))"

Maybe how sodoers was set? http://ss64.com/bash/sudo.html