Can not load default MySQL library ("" or "")

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Can not load default MySQL library ("" or "")

Hi Community,

after installing I always do get the following error and the program never run.

. Error during connection to database: Can not load default MySQL library ("" or ""). Check your installation.

I am running it under

. Linux Mint 21.2
. ID_LIKE="ubuntu debian"

I already tried

. via Slack V 2.5.2-1 and read that there is an issue with mysql from one user
. tried with mariadb Server and Client
. uninstalled and tried -> sudo add-apt-repository ppa:ok2cqr/ppa;sudo apt-get update;sudo apt-get install cqrlog
. uninstalled and tried -> cqrlog_2.5.2_amd64.tar.gz
. uninstalled and tried all above combined with mariadb and mysql client and server
. tried also to start db manual

and do get always the exact same above error. I checked at the very first time that I want to store the data local.

When searching the whole drive for it says not found.
When searching the whle drive for it finds

Now I am running out of ideas, but sure I am close to it. Ideas very welcome.

73, de Ingo HB9TNZ

Can not load default MySQL library ("

First be sure that you have Mariadb client and server both installed.
See this comment
You can run installation command again.

Number may differ from 20 but is symlink that should point to number ending libmysqlclient.

If that is missing Cqrlog can not find library file.
You can do symlink in same folder where the '21' ending file is.

How ever Mariadb installation should create it without user's action.


Apologies for replying to a

Apologies for replying to a somewhat older thread, but thought I'd mention another fix is to check for a libmysqlclient-dev package w/your Linux distro. The main libmysqlclient package only contains the versioned .so files, while the development package contains the generic symlink. (Seems like several packages are like this in recent distros...not sure why).

Bill, WR4MS


The specified MySQL client library geometry dash lite files ('' or '') may be missing or corrupted on your system.

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My sql

The error message you receive ("Failed to load default MySQL library") usually appears when the system cannot find the required MySQL library file. The specific library file may vary depending on the version of MySQL and the operating system you are using.

To fix this problem, you can try some of the following:

Install the MySQL library package: Use your operating system's package manager (like APT on Ubuntu or YUM on CentOS) to install the MySQL library package. Example on Ubuntu:

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sudo apt-get install libmysqlclient-dev
Update the LD_LIBRARY_PATH environment variable: Add the path to the directory containing the MySQL library to the LD_LIBRARY_PATH environment variable. For example:

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export LD_LIBRARY_PATH=/path/to/mysql/libraries:$LD_LIBRARY_PATH
Create a symbolic link: If you installed MySQL manually and the library file is not in the correct location your application is looking for, you can create a symbolic link to the library file. library from its current location to the location desired by the application slice master. For example:

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sudo ln -s /usr/local/mysql/lib/ /usr/lib/
Remember to change the path to the library folder and filename according to your specific settings.

After performing one of the steps above, try running your application again to see if the issue is resolved