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When I'm Trying to Run the Following command on Ubuntu 20 :

apt-get update
apt install mysql-server libmysqlclient20

I get the following error :

E: Package 'libmysqlclient20' has no installation candidate

the process is part of running some application and when i try to run the application (regardless to the error) it says :

 libmysqlclient.so.20: cannot open shared object file: No such file or directory

Any Help ?!

Regards

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  • Which application says about "libmysqlclient.so.20"? – N0rbert Aug 6 '20 at 20:24
  • it an application called mcsql , after i check the libmysqlclient i found file under the name of "libmysqlclient.so.21.1.21" i tried to make soft link called "libmysqlclient.so.20" in the same directory ,but that didn't work . is there a way to manually install the "libmysqlclient.so.20" ? – Colin Jack Aug 7 '20 at 21:15
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You have to install its development version (with headers) by

sudo apt-get install libmysqlclient-dev

and it will pull correct dependency.

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  • 1
    hi , still not working it says that the latest version is installed ! and when try to run the application it says " libmysqlclient.so.20: cannot open shared object file: No such file or directory" – Colin Jack Aug 6 '20 at 17:46
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Solved by getting the file "libmysqlclient20" manually and then place it in "/usr/lib/x86_64-linux-gnu/"

Regards

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Just download libmysqlclient20 package from 18.04 and install it https://packages.ubuntu.com/bionic/amd64/libmysqlclient20/download download link is in (security.ubuntu.com/ubuntu)

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Ubuntu 20 replaced libmysqlclient20 with libmysqlclient21, but you can still get the old version by adding an earlier Ubuntu version's repository to your apt sources, then using apt install:

echo 'deb http://security.ubuntu.com/ubuntu xenial-security main' | sudo tee /etc/apt/sources.list.d/xenial-security.list
sudo apt update
sudo apt install libmysqlclient20

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