Unable to update ubuntu

I am unable to update ubuntu.Please find the terminal output :

niraj@niraj:~$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
 gsignond : Depends: libgsignond-common1 (= 1.1.0~r509+pkg4~daily~ubuntu5.0.1) but 1.2.0~r519+pkg5~daily~ubuntu5.0.1 is installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
niraj@niraj:~$ sudo apt --fix-broken install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  libgranite4 libllvm6.0 libllvm6.0:i386 libpantheon-online-accounts0
  pantheon-online-accounts-plugin-password
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  gsignond
The following packages will be upgraded:
  gsignond
1 upgraded, 0 newly installed, 0 to remove and 813 not upgraded.
Need to get 0 B/93.3 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
(Reading database ... 261266 files and directories currently installed.)
Preparing to unpack .../gsignond_1.2.0~r519+pkg5~daily~ubuntu5.0.1_amd64.deb ...
Unpacking gsignond (1.2.0~r519+pkg5~daily~ubuntu5.0.1) over (1.1.0~r509+pkg4~daily~ubuntu5.0.1) ...
dpkg: error processing archive /var/cache/apt/archives/gsignond_1.2.0~r519+pkg5~daily~ubuntu5.0.1_amd64.deb (--unpack):
 trying to overwrite '/usr/share/dbus-1/services/com.google.code.AccountsSSO.SingleSignOn.service', which is also in package signond 8.60+r698+dbusapi1+pkg3~daily~ubuntu5.0.1
Errors were encountered while processing:
 /var/cache/apt/archives/gsignond_1.2.0~r519+pkg5~daily~ubuntu5.0.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)