Trying to install CiviCRM 4.7.6 under Wordpress get you do not have sufficient permissions to access this site

Question

This is a re-install. I was unable to upgrade a previous version but it had not been used so I deleted all the CiviCRM tables.

I then deleted the civicrm directory under plugins and in the wp root so theoretically, there should be no remnants of civicrm.

I then unzip the .zip file into the plugins directory.

After that, I activate CiviCRM in Wordpress. The first clue that something is wrong is that I get an Initialization Error with messages that say that the table civicrm_settings does not exist. Of course, it shouldn't exist because this is a new installation.

I then tried to run http:///wp-admin/options-general.php?page=civicrm-install with my site and got the error You do not have sufficient permissions to access this site.

The CiviCRM plugin is activated, as I said above.

Is there something else I must clean up before I can install it?

Answer 1

For a clean CiviCRM reinstall under Ubuntu / LAMP / Wordpress to work, the initial clearing of all CiviCRM related files is essential. If there are any vestiges of a prior installation left, the reinstall will certainly fail (either with an Initialization error, or the "You do not have sufficient permissions..." error).

Here are the necessary steps to reinstall (not upgrade) CiviCRM, using the desired / most recent version.

1. Review the directory structure to be sure it is as specified.  OK.
    1. Get to the proper directory:   
       (for my configuration:  var/www/wordpress/wp-content/plugins/).
    2. Remove all civicrm files and folders:  

sudo rm -R ./civicrm

    3. Remove civicrm log and cache files and folders:  

cd ./files
sudo rm -R ./civicrm

    4. Remove the civicrm.settings.php file, if present from prior work.

cd ../civicrm
rm civicrm.settings.php

    5. Check the wp-content/uploads directory for a civicrm subdirectory and files; 
       remove if found:  

cd /var/www/wordpress/wp-content/uploads/
ls -al
(check for civicrm directory and files and remove if they exist)
sudo rm -R ./civicrm

2. Use wget to pull down the desire / most recent zip file.  OK.  

3. Unzip the file.  OK.  

4. Use sudo chown to set file ownership as appropriate.  OK.

5. In your favorite browser, login to Wordpress and check the Wordpress plugins list to see if the CiviCRM plugin shows up (you may have to refresh the window).  OK.

6. It does, click the Activate button.  OK.  

7. Activated.  OK.  

8. Navigate to:  https://yourwebsite.org/wp-admin/options-general.php?page=civicrm-settings  

9. If success, you can now see the installation page.  

10. Click the configure CiviCRM button and get the green bar screen! OK.

You have now reinstalled CiviCRM. From here, follow the CiviCRM how-to for configuration details.