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Asked: 2024-09-25T23:32:43+05:30 In:

I am encountering a dependency issue with MongoDB while trying to install UniFi on my Ubuntu system. Can anyone help me troubleshoot this problem?

I really need some help here! I’ve been trying to install UniFi on my Ubuntu system, but I keep hitting this annoying dependency issue with MongoDB. It’s like a roadblock that just won’t let me move forward, and it’s super frustrating!

So, here’s the deal: I’ve followed all the steps provided in the UniFi installation guide, but as soon as I reach the part where MongoDB is supposed to install, it throws a tantrum. I’m not exactly a Linux guru, so any troubleshooting steps or advice would be incredibly helpful.

I did some digging online, and it seems like MongoDB’s requirements might not be aligning with the version I’m trying to install. I’m running Ubuntu 20.04, and I swear I’ve got the latest updates installed. I tried to install MongoDB separately before proceeding with UniFi, but I ended up with errors about missing packages and broken dependencies. I attempted a few commands, like `apt-get update` and `apt-get install`, but nothing seems to do the trick.

Has anyone else run into this issue? I saw a couple of threads where folks mentioned having to download specific versions of MongoDB or making changes to the repositories, but I honestly didn’t understand it all. I’m a little nervous about messing around with package versions because I don’t want to completely break my system!

If you’ve successfully installed UniFi with MongoDB on Ubuntu, could you share what you did? Any specific commands or steps you followed? I could really use a step-by-step guide, if possible. It would be amazing to see if there’s any way to bypass this dependency drama and finally get UniFi up and running. Thank you to anyone who can shed some light on this for me! Your expertise would mean the world right now!

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    2 Answers


    1. It sounds like you’re encountering common dependency issues while trying to install UniFi on your Ubuntu 20.04 system. A prevalent problem arises from version mismatches between MongoDB and the version required by UniFi. First, ensure that you’re using the compatible version of MongoDB by referring to the official documentation from both the UniFi and MongoDB websites. You might want to use MongoDB 4.0, as it’s often recommended for UniFi installations. Start by removing any existing MongoDB packages using `sudo apt-get purge mongodb-org*`, then add the correct MongoDB repository. Run these commands to set up the repository and install MongoDB: 

            sudo apt-get update
      wget -qO - https://www.mongodb.org/static/pgp/server-4.0.asc | sudo apt-key add -
      echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.0.list
      sudo apt-get update
      sudo apt-get install -y mongodb-org

      After successfully installing MongoDB, you can then proceed to install UniFi. Make sure to follow the installation steps carefully, and use `apt-get install -f` to fix any broken dependencies if they arise during the process. Additionally, check that your system is fully updated by executing `sudo apt-get update && sudo apt-get upgrade`. If you run into further issues, it can be valuable to check logs by running `sudo journalctl -xe` which may provide more details on what’s going wrong. Lastly, consider posting the specific errors you’re encountering so that others can better assist you. Good luck, and don’t hesitate to reach out with more questions if you need further clarification!




    2. Help with UniFi installation on Ubuntu

      Installing UniFi on Ubuntu with MongoDB – Troubleshooting

      Sounds like you’re having a tough time with the MongoDB installation while trying to set up UniFi on your Ubuntu system! Dependency issues can really be a headache, especially when you’re not super familiar with Linux.

      Here’s a Step-by-Step Guide:

      1. Remove any broken installations: 
        sudo apt-get remove --purge mongodb-org*

        This command will try to clean up any half-installed packages that are messing things up.

      2. Update the package list: 
        sudo apt-get update

        This ensures that you have the latest package information.

      3. Install required dependencies: 
        sudo apt-get install apt-transport-https ca-certificates

        These are crucial for accessing HTTPS repositories.

      4. Import the public key for MongoDB: 
        wget -qO - https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add -

        This step adds the necessary key for the MongoDB repository.

      5. Add the MongoDB repository: 
        echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list

        Make sure you’re using the `focal` version for Ubuntu 20.04.

      6. Update the package list again: 
        sudo apt-get update
      7. Install MongoDB: 
        sudo apt-get install mongodb-org

        This should pull in all the necessary dependencies.

      8. Start and enable MongoDB: 
        sudo systemctl start mongod
sudo systemctl enable mongod
      9. Now proceed with UniFi installation:
        Follow the same steps you had before, and hopefully, the dependency issues will be resolved!

      If You Still Face Issues:

      Check the logs or error messages when the installation fails. You can find MongoDB logs in /var/log/mongodb/mongod.log. If you see errors regarding dependencies, you can try searching for those specific packages and manually installing them.

      Also, if you think specific versions are the problem, you can try to install a different, compatible version of MongoDB. Just make sure you understand the implications it might have on UniFi!

      Final Note:

      Don’t hesitate to ask for help in forums like Ubuntu Forums or the UniFi community forums. Sometimes, others have faced the same issues, and they can offer valuable advice!

      Good luck! You got this!


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