How to Prevent and Fix Package Dependency Errors in Ubuntu

Update Packages. The very first thing to do in case of errors is to run the update command. ...
Upgrade Packages. ...
Clean up Cached and Residual Packages. ...
Do a Mock Installation. ...
Fix Broken Packages. ...
Configure Packages Failed to Install Due to Interruptions. ...
Use PPA-Purge. ...
Use Aptitude Package Manager.

How do I fix dependencies in Ubuntu?
How do I fix dependency resolution errors in Linux?
How do I fix packages have unmet dependencies?
How do I fix broken packages in synaptic Ubuntu?
How do I fix broken dependencies?
How do I fix sudo apt-get update?
What is dependency in Linux?
Where is dependency package in Linux?
How do you solve unable to correct problems you have held broken packages?
How do I fix unmet dependencies in NPM?
How do I clean up broken packages in Ubuntu?
How do I get Synaptic Package Manager in Ubuntu?
How do I find my broken packages?
How can I fix Ubuntu OS without reinstalling it?

How do I fix dependencies in Ubuntu?

When these dependency errors occur, we have multiple options we can try to address the issue.

Enable all repositories.
Update the software.
Upgrade the software.
Clean the package dependencies.
Clean cached packages.
Remove "on-hold" or "held" packages.
Use the -f flag with the install subcommand.
Use the build-dep command.

How do I fix dependency resolution errors in Linux?

Here's what you can do:

sudo cp /etc/apt/sources.list /etc/apt/sources.list.bk. This is to backup your sources. list file.
Run the following commands in order: sudo apt-get clean sudo apt-get update sudo apt-get install -f sudo dpkg -a --configure sudo apt-get dist-upgrade. You'll probably get some errors along the way.

How do I fix packages have unmet dependencies?

Solutions:

If the error shows something like this: ...
One possible cause of unmet dependencies could be corrupted package database, and/or some packages weren't installed properly. ...
One of the most basic fixes to resolve dependencies problems is to run: sudo apt-get -f install.

How do I fix broken packages in synaptic Ubuntu?

To fix any broken packages that may appear on your Ubuntu Linux PC, ensure Synaptic is open. Then, click on the “Edit” menu with the mouse. Inside of the “Edit” menu, locate the option labeled “Fix Broken Packages” and click it with the mouse.

How do I fix broken dependencies?

Ubuntu fix broken package (best solution)

sudo apt-get update –fix-missing.
sudo dpkg –configure -a.
sudo apt-get install -f.
Unlock the dpkg – (message /var/lib/dpkg/lock)
sudo fuser -vki /var/lib/dpkg/lock.
sudo dpkg –configure -a.

How do I fix sudo apt-get update?

Hash Sum Mismatch Error

This error can happen when fetching the latest repositories during " apt-get update " was interrupted, and a subsequent " apt-get update " is not able to resume the interrupted fetch. In this case, remove the content in /var/lib/apt/lists before retrying " apt-get update ".

What is dependency in Linux?

A dependency occurs when one package depends on another. You might think it would make for an easier-to-manage system if no package depended on any others, but you'd face a few problems, not the least of which would be dramatically increased disk usage. Packages on your Linux system depend on other packages.

Where is dependency package in Linux?

Let's see various ways to see the dependencies of a package.

Checking dependencies with apt show. ...
Use apt-cache for getting just the dependencies information. ...
Check the dependencies of a DEB file using dpkg. ...
Checking dependencies and reverse dependencies with apt-rdepends.

How do you solve unable to correct problems you have held broken packages?

How to go about fixing the “Unable to correct problems, you have held broken packages” error

Make sure that your system's package cache is updated. ...
Install the dependency. ...
Can you get the missing dependency package from some other source?

How do I fix unmet dependencies in NPM?

Following are the possible solution :

Manually need to install the top-level modules, containing unmet dependencies: npm install [email protected].
Re-structure your package. json. Place all the high-level modules (serves as a dependency for others modules) at the bottom.
Re-run the npm install command.

How do I clean up broken packages in Ubuntu?

Here are the steps.

Find your package in /var/lib/dpkg/info , for example using: ls -l /var/lib/dpkg/info | grep <package>
Move the package folder to another location, like suggested in the blog post I mentioned before. ...
Run the following command: sudo dpkg --remove --force-remove-reinstreq <package>

How do I get Synaptic Package Manager in Ubuntu?

To install Synaptic in Ubuntu, use the sudo apt-get install synaptic command:

Once the installation completes, start the program and you should see the main application window:
To find a package you would like to install, enter the keyword in the search box:

How do I find my broken packages?

Launch Synaptic Package Manager and select Status on the left panel and click on Broken Dependencies to find the broken package. Click on the red box to the left of the package's name, and you should get the option to remove it.

How can I fix Ubuntu OS without reinstalling it?

First of all, try to login with live cd and backup your data in an external drive. Just in case, if this method didn't work, you can still have your data and reinstall everything! At the login screen, press CTRL+ALT+F1 to switch to tty1.