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Common WordPress Installation Problems

Having trouble installing WordPress? Don’t worry, many users have seen an error message when trying the installation process. Check out these common errors and solutions to fix your WordPress problems.

Error Message Common Cause Solution
Error Connecting to the Database The database name, username, password, or host was entered incorrectly. Revisit your MySQL database to obtain the database name, username, and password, and re-enter that information.
Headers Already Sent Error Messages A syntax error occurred in wp-config.php the file. Open the file in a text editor. The first line should contain only this line: <?php. The last line should contain only this line: ?>. Make sure that those lines contain nothing else — not even white space. Save the file changes.
500: Internal Server Error Permissions on PHP files are set incorrectly. Try setting the permissions (chmod) on the PHP files to 666. If that doesn’t work, set them to 644. Each web server has different settings for how it lets PHP execute on its servers.
404: Page Not Found The URL for the login page is incorrect. Double-check that the URL you’re using to get to the login page is the same as the location of your WordPress installation (such as http://yourdomain.com/wp-login.php).
403: Forbidden Access An index.html or index.htm file exists in the WordPress installation directory. WordPress is a PHP application, so the default home page is index.php. Look in the WordPress installation folder on your web server. If there is an index.html or index.htm file in there, delete it.
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