QGIS removed after updating to 2.18.5 on ubuntu
Hiking & ActivitiesQGIS Vanishing Act: Ever Updated and Had QGIS Just… Disappear?
Okay, GIS folks, let’s talk about something that’s probably made a few of you pull your hair out: QGIS deciding to peace out during an update. Specifically, version 2.18.5 on Ubuntu. I’ve been there, staring at the screen in disbelief as my trusty QGIS installation vanished into the digital ether. So, what gives?
Turns out, it’s usually a case of mistaken identity – or, more accurately, unmet dependencies. Think of it like this: QGIS needs certain tools (dependencies) to run smoothly. When those tools aren’t available or are the wrong version, things get messy. We’re talking conflicts, errors, and, ultimately, QGIS getting the boot by the package manager trying to sort things out. The usual suspects? python-future and python-owslib, and sometimes even gdal-abi-2-1-2. Ubuntu Trusty (14.04) and Xenial (16.04) users seemed to get hit the hardest.
So, what can you do when QGIS pulls this disappearing act? Here are a few tricks I’ve seen (and sometimes used) to get things back on track:
A Few Things to Keep in Mind:
- Repo Rumble: Conflicting software repositories are a common culprit for dependency issues. Make sure you’re using the right ones for your Ubuntu and QGIS versions.
- GDAL Gotchas: Pay attention to the GDAL version that QGIS wants. If they don’t play nice together, you’re in for a bad time.
- Don’t Go Rogue: Resist the urge to manually delete files managed by apt. That’s a recipe for system disaster. Always use apt to remove or reinstall packages.
The Bottom Line?
While the 2.18.5-on-Ubuntu-nightmare is mostly behind us, dependency issues can still pop up during QGIS updates. It’s just part of the GIS life.
My advice?
- Backup, backup, backup! Before any update, protect your data and QGIS profiles.
- Keep Ubuntu Current: A clean, up-to-date system is your best defense.
- Repo Awareness: Use the correct QGIS repositories for your Ubuntu version.
- Dependency Detective: Sort out any dependency issues before you hit that update button.
- LTR for the Win: Consider using the Long Term Release (LTR) version of QGIS for more stability.
And if you’re still stuck? Don’t be afraid to dive into the QGIS documentation and community forums. There’s a whole tribe of GIS wizards out there ready to help!
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