Technical Blog

Many Drupal users have encountered a Duplicate entry error when adding a new node to their Drupal sites. The error message is as follows "# user warning: Duplicate entry '0' for key 2 query: INSERT INTO node (vid, type, language, title, uid, status, created, changed, comment, promote, moderate, sticky, tnid, translate) VALUES (0, 'page', 'es', 'eee', 1, 1, 1222437644, 1222437644, 2, 1, 0, 0, 0, 0) in /var/www/webapps/drupal6/includes/common.inc on line 3318. # user warning: Duplicate entry '0' for key 1 query: INSERT INTO node_comment_statistics (nid, last_comment_timestamp, last_comment_name, last_comment_uid, comment_count) VALUES (0, 1222437644, NULL, 1, 0) in /var/www/webapps/drupal6/modules/comment/comment.module on line 607." If you are encountering the same error in your Drupal site then read on to find out the fix.

Many Drupal users have encountered a Crashed Drupal Sessions table with the error mesage similar to "Table './dbname/sessions' is marked as crashed and should be repaired query: sess_write UPDATE sessions SET uid = 0, cache = 0, hostname = '67.195.112.119', session = 'localizer_contentlanguages|s:20:\"a:1:{s:3:\"eng\";i:1;}\";', timestamp = 1277138140 WHERE sid = '2cdf7dd30bd3ce06f5b9576d7da5a232' in /home/domain/public_html/includes/database.mysql.inc on line 174" If you are facing this error message in your Drupal site then read on to know how to fix it.

Many Drupal users can recollect numerous instances of the "Error sending email" error message when trying to install and configure Drupal. If you are facing the same error in your Drupal site then read on to know the fix.

Many Drupal users were encountering this error "Compilation failed: this version of PCRE is not compiled with PCRE_UTF8 support" in their Drupal site. If you are facing the same issue in your Drupal site then read on to find out the solution.

Many Drupal users wanted to know how to use a single image to start a Colorbox slideshow? If you are pondering over the same question with Colorbox in your Drupal site then read on to find out the answer.

We had come across many situations while developing Drupal based websites where we had to create Javascript popups without using third party Javascript libraries. Third party libraries often lead to dependency issues or conflicts with existing Javascript functionalities. If you want to know how to create a simple Javscript popup in your Drupal website without using third party Javascript libraries then continue reading.

It is easy to show an image pop-up in Colorbox using Views in a Drupal website. You just have to change the image formatter in Views. However if you don't have a View and you still want to load the image in Colorbox, you can do it using jQuery. Read on to know how to load an image in Colorbox using jQuery in a Drupal 7 website.

We have been facing the error message "Fatal error: Class 'PDO' not found in includes/database/database.inc on line 184" in one of our Drupal sites. Googling up the error text had brought out a number of solutions which did not help to resolve the error in our case as there is no single cause of the error. However we managed to solve it using a different method. If you are facing the same scenario in your Drupal site and want to know how to solve fatal error with Class 'PDO' in Drupal sites the continue reading for the solution.

Today many websites use social media buttons(Facebook, Google plus, etc). One of the modules we use in our Drupal sites is Add This. However we have to copy the code to the block each time we want to alter the theme. Often we will not get the proper icon we are looking for. In such a scenario we can implement this functionality using the Drupal Widgets and Social Media module. If you are facing any problems with installing the Widgets and Social Media module and want to know how to install and configure the Widgets and Social Media module in Drupal 7 then follow the instructions given below.

Many Drupal users wanted to know how to launch a video thumbnail embedded in a View in Colorbox using Video.js. If you are facing the same question in your Drupal website with Colorbox and Views then read on to find out the solution.

Many Drupal users were getting 406 Error when XMLRPC was used on their Drupal site when trying to access the features of the BlogAPI module. If you are faced with the same error in your Drupal site then read on to find out the solution.

Many Drupal users were getting a "Page Not Found" error when trying to access a subdirectory in their Drupal site. If you are encountering the same error in your Drupal 6 website then read onto find out the fix.

Many Drupal users were getting Page Not Found error on all pages of their Drupal 6 website. If you are encountering the same error in your Drupal 6 website then read onto find out the fix.

Many Drupal users have encountered "Page Not Found" Errors on all pages except their sites homepage. If you are facing the same error in your Drupal site then read on to find out the solution.

Many Drupal users have encountered the following error in their Drupal sites. "Method POST is not allowed for the URL /index.htm" error (Error 405). If you are encountering the same error in your Drupal site then read on to find out more.

Many Drupal users have encountered the following error in their Drupal sites. "user error: Access denied for user: 'user@host' to database 'database' query: LOCK TABLES sequences WRITE in [path]/database.mysql.inc on line xx". If you are facing the same error message in your Drupal site then read on to find out the solution.

Many Drupal users have encounterd the following error in the status reports page of their Drupal site. "HTTP request status Fails Your system or network configuration does not allow Drupal to access web pages, resulting in reduced functionality." If you are facing the same situation in your Drupal site then read on to find out more.

Many Drupal users received a "user warning: Got error 28 from storage engine query: SELECT DISTINCT b.* FROM blocks b LEFT JOIN blocks_roles r ON b.module = r.module AND b.delta = r.delta WHERE b.theme = 'garland' AND b.status = 1 AND (r.rid IN (2,3) OR r.rid IS NULL) ORDER BY b.region, b.weight, b.module in /home/your-username-here/public_html/modules/block/block.module on line 433." If you are facing the same situation in your Drupal site then read on to find out the solution.

Many Drupal users received a "Got a packet bigger than 'max_allowed_packet' " error in their Drupal sites. If you are facing the same situation in your Drupal site then read on to find out the solution.