Title: Multiple MAMP copies causing issues?
Last modified: December 9, 2019

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# Multiple MAMP copies causing issues?

 *  [macnadoodle](https://wordpress.org/support/users/macnadoodle/)
 * (@macnadoodle)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/multiple-mamp-copies-causing-issues/)
 * Hi.
    I’ve recently upgraded to MAMP 5.2 and done a new install of WordPress, 
   however I’ve got 2 other copies of MAMP installed on the same machine. This is
   causing issues with pointing the database and i get the “Error establishing a
   database connection”. I assume its because I have multiple copies of MAMP.
 * So, can I uninstall these versions of MAMP without risking the databases?
    They
   all seem to have updated anyway and the local copies of my sites are only partial
   anyway, and I want to develop the sites locally anyway and use my duplicator 
   backups. I’m happy to risk it as long as the copies of MAMP aren’t running off
   the same databases.
 * I shall then run multiple copies of wordpress for each site off the single MAMP
   installation, which may thin out the process.
 * I can’t post any links as this is all on my machine locally. And I’m just a boomer
   dabbling in tech, so no complex jargon, please.
    Thanks in advance.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Tyler](https://wordpress.org/support/users/tylerthedude/)
 * (@tylerthedude)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/multiple-mamp-copies-causing-issues/#post-12219535)
 * Hi there,
 * This error regarding WordPress not being able to connect to the database could
   happen for multiple reasons. The first reason is that the MySQL server was not
   able to start whenever you first started up MAMP (it will load up the Apache 
   web server and MySQL server). You may try checking if the server did in fact 
   start, as the Apache server alone may have loaded.
 * Another reason why this could be happening is your database user doesn’t have
   correct permissions for the database defined in the wp-config.php file. Assuming
   you don’t have a root user using the database, then you may try checking the 
   permissions for the database user just to make sure it has the appropriate permissions
   for using the database.
 * If both of the WordPress sites are using the same database, then I’d also make
   sure that the table prefixes for the sites are different. Normally, WordPress
   will pick up on a table prefix being used twice but it doesn’t hurt to check.
   You can see if this is the case by checking each site’s wp-config file. This 
   can be done by entering the htdocs directory and click the WordPress installation
   folder, open the wp-config.php file and check to see that the $table_prefix variable
   for both sites are different.
 * Regards,
    Tyler
 *  Thread Starter [macnadoodle](https://wordpress.org/support/users/macnadoodle/)
 * (@macnadoodle)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/multiple-mamp-copies-causing-issues/#post-12219890)
 * Thanks Tyler, I’ll check that.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Multiple MAMP copies causing issues?’ is closed to new replies.

## Tags

 * [copies](https://wordpress.org/support/topic-tag/copies/)
 * [MAMP](https://wordpress.org/support/topic-tag/mamp/)
 * [multiple](https://wordpress.org/support/topic-tag/multiple/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [macnadoodle](https://wordpress.org/support/users/macnadoodle/)
 * Last activity: [6 years, 5 months ago](https://wordpress.org/support/topic/multiple-mamp-copies-causing-issues/#post-12219890)
 * Status: not resolved

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