<div dir="ltr">Hi Ismail!<div><br></div><div>Many thanks for your advice; I'll check it out. I haven't actually had a chance to sit down and try to purge QGIS and start again. Andre was trying to help me but I wasn't sure where to start so I haven't tried since I last inquired about the process!</div><div><br></div><div>Thanks a lot,</div><div>Jimi.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Feb 23, 2020 at 8:59 AM Ismail Sunni <<a href="mailto:imajimatika@gmail.com">imajimatika@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi Jimi,<div><br></div><div>I have a similar problem. I fix it by reinstalling gdal (libgdal20). I can install QGIS again after that. But, I am not an expert with this package manager thing, so perhaps it can work for you also, or perhaps not :)<br><br>While trying to fix my problem, I found this <a href="https://askubuntu.com/questions/140246/how-do-i-resolve-unmet-dependencies-after-adding-a-ppa" target="_blank">https://askubuntu.com/questions/140246/how-do-i-resolve-unmet-dependencies-after-adding-a-ppa</a> which probably useful for you.</div><div><br></div><div>Best regards</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Feb 20, 2020 at 1:22 PM J. M <<a href="mailto:jimimckay@gmail.com" target="_blank">jimimckay@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi again Andre,<div><br></div><div>Thanks for that, I more or less get what you mean. The problem is that when I ran autoremove it came back with almost a gig of dependencies it wanted to remove, so I cancelled it! QGIS wasn't the last program I installed so I have no idea how to purge only the dependencies directly related to the previous version of it I was running. If I run autoremove and it damages other applications or makes my system unusable then I won't be able to fix it (I'm only a user, I've got no background in programming). I read around and people warned strongly against doing this unless you're sure what you want to remove. How can I be sure I only remove the right dependencies? Does QGIS have a list or something I can use as a guide?</div><div><br></div><div>If anyone could explain how to use Synaptic package manager then I'd be really grateful! It must have the most unintuitive interface of any piece of software I've ever tried to use..</div><div><br></div><div>I edited the source file last time I installed it, so that part is done. Incidentally, I don't see the 'other Software' tab in the Ubuntu Software Center, so I just edited it manually. Any idea what that package is called? I'm happy enough using the terminal if I know (roughly) what I'm doing! </div><div><br></div><div>Thanks a lot team,</div><div>Jimi.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Feb 19, 2020 at 8:18 PM Andre Joost <<a href="mailto:andre%2Bjoost@nurfuerspam.de" target="_blank">andre+joost@nurfuerspam.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Am 18.02.20 um 23:58 schrieb J. M:<br>
> Hi again Andre,<br>
><br>
> I don't actually understand what to do with this, because I can't run 'sudo<br>
> apt-get install qgis qgis-plugin-grass' as it keeps giving me the same<br>
> error messages about broken packages.<br>
<br>
Yes, because you have packages that are compiled against a set of <br>
libraries that does not match your computer. You have to remove, <br>
autoremove and purge those QGIS packages to force a download from the <br>
right folder.<br>
<br>
<br>
> When you say this, I don't get what this link does. I click on it and it<br>
> just takes me into a file hierarchy. Are users supposed to obtain the<br>
> downloads from here, or is it purely informative?<br>
> Try<br>
> deb <a href="https://qgis.org/ubuntugis" rel="noreferrer" target="_blank">https://qgis.org/ubuntugis</a> bionic main<br>
<br>
That should go into your sources list, to replace the QGIS download <br>
source you used before. The Ubuntu Software center has a tab for "other <br>
Software" that holds the same information, so no need to edit the <br>
sources file manually.<br>
<br>
HTH,<br>
Andre Joost<br>
<br>
<br>
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</blockquote></div>