How can I fix this problem?

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Ruby

Hello,
I had some problems install ruby gem (mysql2) on Windows 10.
I have installed "rubyinstaller-devkit-3.1.2-1-x64.exe".
And I have installed required gem files for my ruby on rails development.
But I can't install mysq2 gem because of error as following

PS C:\Users\ARTIST> gem install mysql2
Temporarily enhancing PATH for MSYS/MINGW...
Installing required msys2 packages: mingw-w64-ucrt-x86_64-libmariadbclient
error: failed to init transaction (unable to lock database)
error: could not lock database: File exists
  if you're sure a package manager is not already
  running, you can remove /var/lib/pacman/db.lck
pacman failed with the following output:
Building native extensions with: '--with-system-libraries'
This could take a while...
ERROR:  Error installing mysql2:
        ERROR: Failed to build gem native extension.

    current directory: C:/Ruby31-x64/lib/ruby/gems/3.1.0/gems/mysql2-0.5.4/ext/mysql2
C:/Ruby31-x64/bin/ruby.exe -I C:/Ruby31-x64/lib/ruby/3.1.0 -r ./siteconf20220716-5112-ci06hd.rb extconf.rb --with-system-libraries
checking for rb_absint_size()... yes
checking for rb_absint_singlebit_p()... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_enc_interned_str() in ruby.h... yes
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

What I have tried:

I searched for google and stack overflow to solve this issue.
There are some issues as same as mine.
So I applied their solutions but it doesn't work!!PS C:\>gem install mysql2 --platform=ruby -- --with-mysql-dir=c:\mariadb-connector-c-3.1.13-src gem install mysql2 --platform=ruby -- --with-system-libraries
But all of these results were just same as above error!!
Help me.
Thanks.