How to Fix \'Configuration Failure\' Errors When Installing the RMySQL Package on Windows?

Troubleshooting RMySQL Package Installation Failure

Problem:

Installing the RMySQL package using install.packages('RMySQL', type='source') fails, resulting in an error message indicating configuration failure.

Solution:

Step 1: Verify MySQL Installation

Ensure that MySQL is properly installed and accessible. The following R commands should provide relevant information:

> Sys.getenv('MYSQL_HOME')
                 MYSQL_HOME "Path to MySQL installation folder" 
> readRegistry("SOFTWARE\MySQL AB", hive="HLM", maxdepth=2)

Step 2: Install RTools

Download and install the latest version of RTools, which provides essential C compilers.

Step 3: Copy MySQL Libraries

• Copy the libmysql.lib file from MySQL/lib to MySQL/lib/opt for dependency resolution.
• Copy the libmysql.dll file to either C:Program FilesRR-[R version]bin or the Windows system directory (WindowsSystem32).

Step 4: Set Environment Variable

Create or edit the C:Program FilesRR-[R version]etcRenviron.site file and add a line specifying the MySQL home directory:

MYSQL_HOME="Path to MySQL installation folder"

Step 5: Reinstall RMySQL

Run install.packages('RMySQL', type='source') again. The compilation process may take some time to complete.

Step 6: Post-Installation Checks

Once the package is installed, ensure it has been loaded correctly:

> library(RMySQL)

This solution has been verified to work on Windows 7 64-bit, and should also apply to 32-bit versions. For additional assistance, refer to the original discussion at the provided link.

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