dpkg: error processing package pick-colour-picker (--install) in Ubuntu 16.04

When I am installing color-picker in Ubuntu 16.04 from the terminal this error occurs. I use this command to install it:

sudo dpkg -i pick-colour-picker_1.5-0~201606011144~ubuntu14.04.1_all.deb (Reading database ... 263715 files and directories currently installed.) Preparing to unpack pick-colour-picker_1.5-0~201606011144~ubuntu14.04.1_all.deb ... Unpacking pick-colour-picker (1.5-0~201606011144~ubuntu14.04.1) over (1.5-0~201606011144~ubuntu14.04.1) ... dpkg: dependency problems prevent configuration of pick-colour-picker: pick-colour-picker depends on python-pkg-resources; however: Package python-pkg-resources is not installed. pick-colour-picker depends on python-gi-cairo; however: Package python-gi-cairo is not installed. dpkg: error processing package pick-colour-picker (--install): dependency problems - leaving unconfigured Processing triggers for desktop-file-utils (0.22-1ubuntu5.1) ... Processing triggers for gnome-menus (3.13.3-6ubuntu3.1) ... Processing triggers for bamfdaemon (0.5.3~bzr0+16.04.20160824-0ubuntu1) ... Rebuilding /usr/share/applications/bamf-2.index... Processing triggers for mime-support (3.59ubuntu1) ... Processing triggers for hicolor-icon-theme (0.15-0ubuntu1) ... Errors were encountered while processing: pick-colour-picker 

3 Answers

This seems that you haven't installed all the dependencies. Try running this command:

sudo apt -f install 

It should solve your problem. If it doesn't work, try:

sudo apt install python-pkg-resources python-gi-cairo 

Those two packages are the missing dependencies of color-picker in your case.

Your package is not being installed due to some unmet dependencies. I would like to suggest to install gdebi and install your .deb package from it. It will automatically install required dependency packages.

sudo apt-get install gdebi 

Once installed, Right click on your .deb file and open it with gdebi. Cheers :)

@Arman

in that case do the following:

First move your deb file to /var/cache/apt/archives/ directory. Then run following command:

sudo apt-get install package_name

After executing this command, it will automatically download its dependencies.

If you still want to stick with dpkg dear, then:

You can install it using sudo dpkg -i debfile followed by

sudo apt-get install -f 

I hope both options will meet your need :)