I am currently trying to install libpq-dev to install psycopg2. The problem is, when I try to install it, an error occurs saying I don't have the latest libpq5 version. However when I try to download the newer version of libpq5 the system says that I already have the latest version. An example of the error.
lhmendes#lhmendes-GA-78LMT-S2P:~$ sudo apt-get install libpq-dev
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:
libpq-dev : Depends: libpq5 (= 12.4-0ubuntu0.20.04.1) but 12.4-1.pgdg20.04+1 is to be installed
E: Unable to correct problems, you have held broken packages.
lhmendes#lhmendes-GA-78LMT-S2P:~$ sudo apt-get install libpq5
Reading package lists... Done
Building dependency tree
Reading state information... Done
libpq5 is already the newest version (12.4-1.pgdg20.04+1).
0 upgraded, 0 newly installed, 0 to remove and 4 not upgraded.
As of late January 2023 the command is:
sudo apt-get install libpq5=12.12-0ubuntu0.20.04.1 && sudo apt-get install libpq-dev
When you're using Ubuntu 22.04 try:
sudo apt-get install libpq5=14.5-0ubuntu0.22.04.1 && sudo apt-get install libpq-dev
Any newer version of libpq5 can cause this error. In my case it was libpq5=13.1-1.pgdg20.04+1.
It's the similar answer as furus has given but the change is it's libpq5 in ubuntu 20.04 (atleast in my case).
I fixed the issue by installing
sudo apt-get install libpq5=12.5-0ubuntu0.20.04.1
and then install liqpq-dev again
sudo apt-get install libpq-dev
I would say you have installed the latest libpq (12.4-1) but libpq-dev needs older version (12.4-0) and this makes problem.
You may try to install older libpq
apt-get install libpq==12.4-0ubuntu0.20.04.1
but if other program uses the latest version then older version can make problem with this program.
pgdg20 in 12.4-1.pgdg20.04+1 means it is not module from standard ubuntu repo but from some other repo - probably postgresql repo - and maybe this repo has also the latest version libpq-dev. You would search 12.4-1.pgdg20.04+1 in Google and maybe you could find also libpg-dev with 12.4-1.pgdg20.04+1
I found libpq-dev 12.4-1.pgdg20.04+1 and you can download .deb file and install it.
Or you can add this postgresql repo and install with apt-get. This method will also inform about updates and then you could install updates automatically.
This worked for me:
sudo apt-get install libpq5=12.7-0ubuntu0.20.04.1
if you are trying to install it on Ubuntu 20.04 then run below command to install libpq-dev
Command1: sudo apt-get install libpq5=12.2-4
Command2:
sudo apt install libpq-dev
Link: https://ubuntu.pkgs.org/20.04/ubuntu-main-arm64/libpq-dev_12.2-4_arm64.deb.html
What worked in my case was.
sudo apt-get install libpq5=14.5-0ubuntu0.22.04.1
The libpq5 package that worked for me corresponds to my version of ubuntu I found it at:
https://pkgs.org/download/libpq-dev
For ubuntu version 22.04.1
Then I was able to use sudo apt-get install libpq-dev without problems.
I had to download this package and run
sudo dpkg -i ~/Downloads/libpq-dev_13.3-1.pgdg20.04+1_amd64.deb
I have the same problem when I install psycopg2-binary, It seems like it is caused by repository conflict.
In software & Updates => other software
Unselect https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/focal.
sudo apt-get remove libpg5
sudo apt-get install libpg5 libpg-dev
Solved my problem
This problem persists in 22.04:
Os pacotes a seguir têm dependências desencontradas:
libpq-dev : Depende: libpq5 (= 14.3-0ubuntu0.22.04.1) mas 14.4-1.pgdg22.04+1 está para ser instalado
I had to revert libpq5 as per the error message above:
sudo apt-get install libpq5=14.3-0ubuntu0.22.04.1
I think this is because your libpg-dev is depending on libpg5=12.4-0ubuntu0.20.04.1 but 12.4-1.pgdg20.04+1 is to be installed in your machine that is why the error occurs when you sudo apt-get install libpg-dev.
Therefore you can try sudo apt-get install libpg5=12.4-0ubuntu0.20.04.1 first,
after that, sudo apt-get install libpg-dev.
I did this way to solve my problem which was similar to yours.
Update package worked for me:
sudo apt update
sudo apt install libpg-dev
You can find the latest version here.
https://packages.ubuntu.com/bionic/libpq-dev
The only solution that worked for me is
sudo apt-get install libpq5=14.5-0ubuntu0.22.04.1
sudo apt-get install libpq-dev
then
pip install psycopg2
Yes, upvote when this works for you.
Good luck.
This issue was fixed in pgadmin repo: it now provides a matching version of libpq-dev along with libpq5. You can update both packages to the latest version and remove pins (unless there is yet another flawed provider of the libpq5 package in your apt sources).
$ dpkg -l libpq*
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-==================-============-============================================
ii libpq-dev 15.1-1.pgdg20.04+1 amd64 header files for libpq5 (PostgreSQL library)
ii libpq5:amd64 15.1-1.pgdg20.04+1 amd64 PostgreSQL C client library
This is the result I get when trying to install pip3.
sudo apt-get install python3-pip
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:
gnome-session-common : Breaks: eog (< 3.36.0) but 3.26.1-1 is to be installed
kali-menu : Breaks: python-faraday (< 3.10.0)
python3-pip : Depends: python3-distutils but it is not going to be installed
Depends: python3-setuptools but it is not going to be installed
Recommends: build-essential but it is not going to be installed
Recommends: python3-dev (>= 3.2) but it is not going to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
This error can be caused by an incomplete package installation.
Try:
sudo apt-get update && sudo apt-get upgrade
Then run the install command again.
sudo apt-get install python3-pip
I am trying it install Tinker on my Ubuntu 17.04 but some how it does not seem working, I have used all these command on the terminal
sudo apt-get install update
sudo apt-get install upgrade
sudo apt-get install python-tk
sudo apt-get install python3-tk
Every time I am getting :
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package python-tk is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'python-tk' has no installation candidate
I have installed raspbian os on raspberry pi 3 model b. I have to perform a project which involves use of h5py.
The os already came preinstalled with python 2.7 and 3.5
With the help of pip, I installed h5py and it was successful, for python 3.5.
ImportError: libhdf5_serial.so.100: cannot open shared object file: No such file or directory
I don't know how to proceed with this error, can somebody please point out an appropriate way to handle this error?
I met the same question as yours, and you can use the website below to solve it: https://www.howtoinstall.co/en/debian/stretch/
In generally, you will find these commands similarly.
sudo apt-get update
sudo apt-get install libhdf5-dev
sudo apt-get install libhdf5-serial-dev
Besides, you can visit my blog about this problem. It's written in Chinese, so maybe you need http://translate.google.com
Install all of these packages
sudo apt-get install libhdf5-dev
sudo apt-get install libhdf5-serial-dev
sudo apt-get install libcblas-dev
sudo apt-get install libatlas-base-dev
sudo apt-get install libjasper-dev
sudo apt-get install libqtgui4
sudo apt-get install libqt4-test
https://stackoverflow.com/a/53402396/2696230
I came across a tutorial which lists a number of libraries to install before installing Django (I am using Ubuntu 14.04, Python3, and Django 1.8):
$ sudo apt-get update
$ sudo apt-get -y upgrade
$ sudo apt-get install -y build-essential
$ sudo apt-get install python-setuptools python-dev python3.4-dev python-software-properties libpq-dev
$ sudo apt-get install libtiff4-dev libjpeg8-dev zlib1g-dev libfreetype6-dev liblcms2-dev libwebp-dev tcl8.5-dev tk8.5-dev
$ sudo apt-get build-dep python-imaging
But other tutorials may not list so many libraries to install. I wonder which are absolutely necessary, and others may be omitted?
You only need to install these dependencies if you want image processing via pillow and if you plan on installing it via pip (the Python package manager) rather than apt-get (Ubuntu's package manager).
Since you're using a virtualenv, you will need to install this package from source. The following commands will get the build dependencies and install pillow using pip.
$ sudo apt-get build-dep python3-imaging
$ pip install pillow
Note that pillow is a beast to compile. Be prepared to wait several minutes.