[Qgis-user] QGIS uninstalled after GDAL PPA install
Ben Hur Pintor
bnhr.dev at gmail.com
Tue Feb 25 20:33:24 PST 2020
Hi!
It looks like your machine is trying to install 3.12.
As I mentioned in the last part of my previous message, right now you can't
install QGIS 3.12 on Ubuntu 18.04 because 3.12 needs PROJ 6.3.1 which
currently isn't available in Bionic -- via the main canonical repo or even
with the ubuntugis-unstable PPA. Therefore, I suggest installing from the
LTR branch and not the LR branch. When I use the LTR branch with ubuntugis
dependencies, I get QGIS 3 10.2 no problem.
I run the same machine as you and actually faced the same problem when I
tried to install the Latest Release (3.12) on Bionic. Try using the repos
for the LTR (the ones with -ltr in the end). Maybe that will help.
Don't worry about it, we've all been there.
All the best,
Ben Hur
On Wed, Feb 26, 2020, 07:12 J. M <jimimckay at gmail.com> wrote:
> Hi Ben,
>
> No joy, I'm afraid. I think I did everything you recommended. I'm going to
> run through it in case I missed something obvious:
>
> - I ran sudo apt remove qgis grass qgis-plugin-grass, then ran sudo
> apt-get update
> - The /etc/apt/sources file contains the correct info because I
> modified it for the last installation
> - I ran autoremove on QGIS and erased over a gigabyte of
> dependencies (which seemed like a *lot*..)
> - I ran sudo apt-key list to check if the ubuntugis-unstable PPA was
> still listed as trusted, and it didn't appear
> - I added the ubuntugis stable PPA as recommended on
> https://trac.osgeo.org/ubuntugis/wiki/UbuntuGISRepository, with sudo
> add-apt-repository ppa:ubuntugis/ppa, and it appeared to duplicate
> your command sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-key
> 51F523511C7028C3. Is that possible when they appear to reference two
> different PPA's?
> - I ran sudo apt-get install qgis qgis-plugin-grass and received the
> following error message, similar to before:
>
> The following packages have unmet dependencies.
> qgis : Depends: gdal-abi-2-2-3
> Depends: libqgis-analysis3.12.0 but it is not going to be installed
> Depends: libqgis-app3.12.0 but it is not going to be installed
> Depends: libqgis-core3.12.0 but it is not going to be installed
> Depends: libqgis-gui3.12.0 but it is not going to be installed
> Depends: python3-qgis (= 1:3.12.0+28bionic) but it is not going to
> be installed
> Depends: qgis-providers (= 1:3.12.0+28bionic) but it is not going
> to be installed
> qgis-plugin-grass : Depends: qgis-provider-grass (= 1:3.12.0+28bionic)
> but it is not going to be installed
> Depends: grass740
> Depends: libqgis-app3.12.0 but it is not going to be
> installed
> Depends: libqgis-core3.12.0 but it is not going to be
> installed
> Depends: libqgis-gui3.12.0 but it is not going to be
> installed
> Depends: libqgisgrass7-3.12.0 but it is not going to
> be installed
> E: Unable to correct problems, you have held broken packages.
>
> I must be missing something. Do I have to open the UI via terminal (sudo
> nautilus) and manually remove every file which makes reference to QGIS and
> ubuntugis-unstable? As formatting my machine isn't an option there must be
> a simple way of completely removing the program and its dependencies..
> right?!
>
> I don't even know what Gdal is or does, because I can't even get started
> learning QGIS because I'm finding it impossible to have a version running
> for long enough to start with tutorials! Is it to allow you to overlay
> raster info onto GIS projects or something? I googled it but the
> explanation must have been written by a robot (no offence intended, to
> robots I mean). Gdal was the reason I installed the ubuntugis-unstable PPA,
> because Blender gave me the helpful error message: Please install gdal to
> enable raster projection support. As my crystal ball was clouded up when
> I read that I came here to bug you guys for help!
>
>
> Thanks again to everyone who has had a go at helping me. Keep those ideas
> coming!!
> Cheers,
> Jimi.
>
> On Tue, Feb 25, 2020 at 11:39 PM J. M <jimimckay at gmail.com> wrote:
>
>> Hi Ben!
>>
>> Thanks a lot for that, really helpful; I'll give it a go. It was actually
>> the ubuntugis unstable PPA which caused the current problem I'm having, so
>> I'm keen to avoid that PPA if I can. I'll try your steps again and let you
>> know what the outcome is.
>>
>> Cheers,
>> Jimi.
>>
>> On Tue, Feb 25, 2020 at 4:44 AM Ben Hur Pintor <bnhr.dev at gmail.com>
>> wrote:
>>
>>> Hi!
>>>
>>> First of all, make sure that you add the qgis.org repo public key
>>> via sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-key
>>> 51F523511C7028C3. Make sure that the library versions in your computer
>>> (specially GDAL and PROJ) are the same libraries that QGIS is built against.
>>>
>>> The links in
>>> https://www.qgis.org/en/site/forusers/alldownloads.html#debian-ubuntu determine
>>> which versions of QGIS will be installed. You add these as sources in the
>>> Software Center or you can add them directly in your /etc/apt/sources.list
>>> file as instructed in
>>> https://qgis.org/en/site/forusers/alldownloads.html#debian-ubuntu.
>>> If you want 3.12 (Latest Release), you can use/add the following in your
>>> /etc/apt/sources.list file https://qgis.org/ubuntu or
>>> https://qgis.org/ubuntugis (if with ubuntugis-unstable dependencies).
>>> If you want the LTR branch (3.10.3), simply use
>>> https://qgis.org/ubuntu-ltr or https://qgis.org/ubuntugis-ltr (if with
>>> ubuntugis-unstable dependencies) in your /etc/apt/sources.list file.
>>>
>>> Also, don't forget to remove/purge all previous QGIS or GRASS
>>> installations (e.g. sudo apt remove qgis grass qgis-plugin-grass) and do an
>>> update (sudo apt update) before trying to install QGIS again.
>>>
>>> I run Pop! OS 18.04 (based on Ubuntu 18.04). Unfortunately, the
>>> libraries in the main (universe) repo of Bionic are a bit outdated (GDAL
>>> 2.2.3, PROJ 4.9, etc.). The newer versions of QGIS use GDAL 3.0.X and PROJ
>>> 6.X. Using the ubuntugis-unstable (
>>> https://launchpad.net/~ubuntugis/+archive/ubuntu/ubuntugis-unstable)
>>> PPA remedies the problem of some outdated libraries. If you will use the
>>> ubuntugis-unstable libraries, don't forget to add the PPA to your sources
>>> as well. On another note, PROJ 6.3.1, which QGIS 3.10.3 and 3.12 use, isn't
>>> available yet in Bionic even when using the ubuntugis PPA so even if I
>>> want, I can only install 3.10.2 right now on my machine. Trying to install
>>> 3.12 via the ubuntu or ubuntugis repo fails.
>>>
>>>
>>> All the best,
>>> Ben Hur
>>>
>>> On Tue, Feb 25, 2020, 07:25 J. M <jimimckay at gmail.com> wrote:
>>>
>>>> Hi Ismail,
>>>>
>>>> Well, I've tried everything I can think of, everything people have
>>>> recommended and everything I've googled, but there seems to be no earthly
>>>> way to get rid of the following error messages:
>>>>
>>>> sudo apt-get install qgis qgis-plugin-grass
>>>> Reading package lists... Done
>>>> Building dependency tree
>>>> Reading state information... Done
>>>> Some packages could not be installed. This may mean that you have
>>>> requested an impossible situation or if you are using the unstable
>>>> distribution that some required packages have not yet been created
>>>> or been moved out of Incoming.
>>>> The following information may help to resolve the situation:
>>>>
>>>> The following packages have unmet dependencies.
>>>> qgis : Depends: python3-qgis (= 1:3.12.0+28bionic) but it is not going
>>>> to be installed
>>>> E: Unable to correct problems, you have held broken packages.
>>>>
>>>> I've tried this:
>>>>
>>>> sudo apt-get purge qgis
>>>> sudo apt-get autoremove qgis
>>>> sudo apt-get --purge remove qgis
>>>> sudo apt-get update
>>>>
>>>> but it returned the following:
>>>>
>>>> sudo apt-get update
>>>>
>>>>
>>>> Hit:6 http://qgis.org/debian bionic InRelease
>>>>
>>>> The following signatures couldn't be verified because the public key
>>>> is not available: NO_PUBKEY 76F1A20FF987672F
>>>> Hit:18 http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu
>>>> bionic InRelease
>>>> Err:18 http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu
>>>> bionic InRelease
>>>> The following signatures couldn't be verified because the public key
>>>> is not available: NO_PUBKEY 089EBE08314DF160
>>>> Reading package lists... Done
>>>> W: GPG error: https://dl.winehq.org/wine-builds/ubuntu bionic
>>>> InRelease: The following signatures couldn't be verified because the public
>>>> key is not available: NO_PUBKEY 76F1A20FF987672F
>>>> E: The repository 'https://dl.winehq.org/wine-builds/ubuntu bionic
>>>> InRelease' is not signed.
>>>> N: Updating from such a repository can't be done securely, and is
>>>> therefore disabled by default.
>>>> N: See apt-secure(8) manpage for repository creation and user
>>>> configuration details.
>>>> W: An error occurred during the signature verification. The repository
>>>> is not updated and the previous index files will be used. GPG error:
>>>> http://ppa.launchpad.net/ubuntugis/ubuntugis-unstable/ubuntu bionic
>>>> InRelease: The following signatures couldn't be verified because the public
>>>> key is not available: NO_PUBKEY 089EBE08314DF160
>>>>
>>>>
>>>> I can't think of anything else. Any suggestions about what I might be
>>>> doing wrong? I don't actually understand what this link is for:
>>>> https://www.qgis.org/en/site/forusers/alldownloads.html#debian-ubuntu
>>>> If you download via the terminal by typing 'sudo apt-get install qgis'
>>>> then how do you make use of all the folders in this link? I mean, how do I
>>>> differentiate if I want to download version 3.10 or 3.12 of QGIS?
>>>>
>>>> Sorry team, I just can't get this to work and I'm worried I do
>>>> irreparable damage to my system with this process.
>>>> Please help me out, guys!
>>>> Cheers,
>>>> Jimi.
>>>>
>>>>
>>>>
>>>> On Mon, Feb 24, 2020 at 6:58 PM J. M <jimimckay at gmail.com> wrote:
>>>>
>>>>> Hi Ismail!
>>>>>
>>>>> 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!
>>>>>
>>>>> Thanks a lot,
>>>>> Jimi.
>>>>>
>>>>> On Sun, Feb 23, 2020 at 8:59 AM Ismail Sunni <imajimatika at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi Jimi,
>>>>>>
>>>>>> 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
>>>>>> :)
>>>>>>
>>>>>> While trying to fix my problem, I found this
>>>>>> https://askubuntu.com/questions/140246/how-do-i-resolve-unmet-dependencies-after-adding-a-ppa which
>>>>>> probably useful for you.
>>>>>>
>>>>>> Best regards
>>>>>>
>>>>>> On Thu, Feb 20, 2020 at 1:22 PM J. M <jimimckay at gmail.com> wrote:
>>>>>>
>>>>>>> Hi again Andre,
>>>>>>>
>>>>>>> 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?
>>>>>>>
>>>>>>> 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..
>>>>>>>
>>>>>>> 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!
>>>>>>>
>>>>>>> Thanks a lot team,
>>>>>>> Jimi.
>>>>>>>
>>>>>>> On Wed, Feb 19, 2020 at 8:18 PM Andre Joost <
>>>>>>> andre+joost at nurfuerspam.de> wrote:
>>>>>>>
>>>>>>>> Am 18.02.20 um 23:58 schrieb J. M:
>>>>>>>> > Hi again Andre,
>>>>>>>> >
>>>>>>>> > I don't actually understand what to do with this, because I can't
>>>>>>>> run 'sudo
>>>>>>>> > apt-get install qgis qgis-plugin-grass' as it keeps giving me the
>>>>>>>> same
>>>>>>>> > error messages about broken packages.
>>>>>>>>
>>>>>>>> Yes, because you have packages that are compiled against a set of
>>>>>>>> libraries that does not match your computer. You have to remove,
>>>>>>>> autoremove and purge those QGIS packages to force a download from
>>>>>>>> the
>>>>>>>> right folder.
>>>>>>>>
>>>>>>>>
>>>>>>>> > When you say this, I don't get what this link does. I click on it
>>>>>>>> and it
>>>>>>>> > just takes me into a file hierarchy. Are users supposed to obtain
>>>>>>>> the
>>>>>>>> > downloads from here, or is it purely informative?
>>>>>>>> > Try
>>>>>>>> > deb https://qgis.org/ubuntugis bionic main
>>>>>>>>
>>>>>>>> That should go into your sources list, to replace the QGIS download
>>>>>>>> source you used before. The Ubuntu Software center has a tab for
>>>>>>>> "other
>>>>>>>> Software" that holds the same information, so no need to edit the
>>>>>>>> sources file manually.
>>>>>>>>
>>>>>>>> HTH,
>>>>>>>> Andre Joost
>>>>>>>>
>>>>>>>>
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>>>>>>>
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>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Ismail Sunni
>>>>>> Software Engineer
>>>>>> ismailsunni.id
>>>>>> ismailsunni.wordpress.com
>>>>>>
>>>>> _______________________________________________
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>>>
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