magento error Exception printing is disabled by default for security reasons.

There has been an error processing your request
Exception printing is disabled by default for security reasons.
Error log record number: XXXXXXXXXXXXXXX

Here is the solution:

1. Navigate to the "errors" folder.
2. Change local.xml.sample to local.xml
3. You should now see a new list of crazy errors all over the Magento page - this is okay.
4. Open magento/lib/Zend/Cache/Backend/File.php and look for:
   protected $_options = array(
   'cache_dir' => 'null',
5. Change it to:
   protected $_options = array(
   'cache_dir' => 'tmp/',
6. Save it.
7. Now the final step is to go create a tmp folder in the root Magento folder.
8. That's it.