Something is wrong with Software Updater or your package system. Fixing it can be a little tricky, and even once fixed, the icon will not change immediately. Open Synaptic, fix broken packages, and also reload (fix any errors displayed). See if that does it.
– heynnemaSep 18 '17 at 16:56
Did you use Synaptic to fix broken packages? What happens when you try to install any software?
– heynnemaSep 25 '17 at 19:07
First of all I can't even install Synaptic....While I am installing that , That's not getting installed
– Madhu AnandSep 26 '17 at 08:34
First of all I can't even install Synaptic or other software...While installing that...that is not installing....pls help me by giving any help I need to install many software for my profession
– Madhu AnandSep 26 '17 at 08:37
Backup your important files first, then https://help.ubuntu.com/community/UbuntuReinstallation and https://askubuntu.com/questions/446102/how-to-reinstall-ubuntu-in-the-easiest-way
– heynnemaSep 27 '17 at 23:10
Software Updateror your package system. Fixing it can be a little tricky, and even once fixed, the icon will not change immediately. Open Synaptic, fix broken packages, and also reload (fix any errors displayed). See if that does it. – heynnema Sep 18 '17 at 16:56sudo apt-get install -fandsudo dpkg --configure -a. – heynnema Sep 26 '17 at 15:59