How to Fix \'ERROR: configuration failed for package \'RMySQL\'\' on Windows?

Installing RMySQL Package on Windows: Troubleshooting Errors

When attempting to install the RMySQL package using the command install.packages('RMySQL', type='source'), some users encounter an error during configuration with the following message:

ERROR: configuration failed for package 'RMySQL'

This issue can arise even if the MySQL installation appears to be configured correctly. To resolve this error and successfully install RMySQL on Windows, follow these steps:

1. Install RTools: Visit the RTools website to download and install the latest version of RTools on your system.

2. Modify Renviron.site: Navigate to the file C:Program FilesRR-etcRenviron.site and add the following line:

   MYSQL_HOME=C:\path\to\your\mysql

   Replace C:pathtoyourmysql with the actual path to your MySQL installation directory.

3. Copy libmysql.lib: Locate the file libmysql.lib within your MySQL installation directory (usually under mysql/lib). Copy this file to the directory mysql/lib/opt.
4. Copy libmysql.dll: Copy the libmysql.dll file from your MySQL installation directory to either C:Program FilesRR-bin or the Windows system32 directory.
5. Reinstall RMySQL: Run the R command install.packages('RMySQL', type='source') and wait for the compilation to complete.

This solution has been successful for users encountering this error on Windows 7 64-bit and should also work for 32-bit versions.

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