Dec 2, 20097

Debugging JavaScript Code with Firebug

Categories: Troubleshooting
Debugging JavaScript Code with Firebug
Firebug has become an indispensable tool for doing front-end development of web applications. However, most developers are unaware of some very useful features of this tool, especially when it comes to debugging JavaScript code. I've personally seen many of my colleagues relying on alert() function to reveal the flow of execution of their complex codes. In this article we'll look into some ways that Firebug can help you debug JavaScript and boost your productivity. Breakpoints Setting a breakpoint on a line enables you to pause/resume execution of code at your will. When you put a breakpoint on a line, say line 10, the program pauses execution when it reaches line 10. Let's see how we can do that: Turn Firebug on and enable Console and Script views. Then visit ajaxify.com. In the Script view, choose firebug.js from the dropdown menu at the top left corner. On the sub-view at the right click on Breakpoints pane. On the left margin of Script view, you will see the line numbers appear. Now click on line 10, it will be marked by a red circle. This red circle is the breakpoint, the Breakpoint sub-view will list you have set. Now refresh and hit the Change the Message! ...
Jan 12, 200925

How to Clean/Remove Not Found Errors from Google web master tools generated from translated versions

Categories: Troubleshooting
How to Clean/Remove Not Found Errors from Google web master tools generated from translated versions
I installed a translator plugin on one of my WordPress blogs but the plugin wasn't working properly so I disabled it but two days later I found out that my Google web master tools account was reporting about 1100 'Not Found' errors under the 'Web crawl errors' section. All the errors were from translated versions of my blog. I used the 'robots.txt' file to fix this issue. If you don't know what a 'robots.txt' file is, then read the article titled how to control access of the web crawlers or web robots to your site. Basically, add rules to your 'robots.txt' file to Disallow any spider from indexing the translated version of the pages. My 'robots.txt' file looks like the following Depending on your situation you might need to block more languages. Just look in the Google webmaster tools and see which languages are causing the error then add them to the Disallow rule. [lang=css] User-Agent: * # Language pages Disallow: /ar/* Disallow: /bg/* Disallow: /zh-hant/* Disallow: /ca/* Disallow: /cs/* Disallow: /da/* Disallow: /de/* Disallow: /el/* Disallow: /es/* Disallow: /fi/* Disallow: /fr/* Disallow: /he/* Disallow: /hi/* Disallow: /hr/* Disallow: /id/* Disallow: /it/* Disallow: /iw/* Disallow: /ja/* Disallow: /ko/* Disallow: /lt/* Disallow: /lv/* Disallow: /mr/* Disallow: /nl/* Disallow: /no/* Disallow: /pl/* Disallow: /pt-br/* Disallow: /pt/* Disallow: /ro/* Disallow: /ru/* Disallow: /sk/* Disallow: /sl/* Disallow: /sr/* Disallow: /sv/* Disallow: /tl/* Disallow: /tr/* Disallow: /uk/* Disallow: /vi/* Disallow: /zh-CN/* Allow: / [/lang] As far as I know, Google penalizes ...
Dec 31, 200841

How to Fix ‘Unable to create directory’ error when uploading image into WordPress

Categories: Troubleshooting
How to Fix ‘Unable to create directory’ error when uploading image into WordPress
This post has a textual and video instructions showing how to fix the WordPress "Unable to create directory" error when uploading/inserting image into WordPress. I started getting the "Unable to create directory /wp-content/uploads/2008/12. Is its parent directory writable by the server?" error when uploading or inserting image into a WordPress post just after upgrading to WordPress 2.7. First I thought it is a directory permission related error so I tried changing the permission of my 'upload' directory to 777 but I was still having the same problem. After trying many things I was able to fix it using the following method. Log into your WordPress Admin account. Go to 'Miscellaneous' Settings options from the 'Settings' menu. In the Miscellaneous Settings put wp-content/uploads in the "Store uploads in this folder" text box. Save the Changes by hitting the "Save Changes" button and you are done. Fix WordPress Image Upload Error: Video Instructions Let me know if this method worked for you.
Dec 7, 200814

How to import WordPress SQL database backup file without having ‘create new database’ privileges in phpMyAdmin

Categories: Troubleshooting
How to import WordPress SQL database backup file without having ‘create new database’ privileges in phpMyAdmin
In this article I have explained how you can import your WordPress SQL database backup file even when you do not have the 'create new database' privilege in phpMyAdmin. This is particularly useful when you are trying to import the SQL database as part of transferring your site from one host (old-host.com) to another host (new-host.com) and your new host doesn't have the 'Create new database' privilege in phpMyAdmin. In your phpMyAdmin page check for the 'create new database' privilege. If the privilege settings looks like the example shown below then your database import following the normal method is going to fail as it will try to create a database and you don't have permission to do that. [caption id="attachment_417" align="alignnone" width="192" caption="No privilege to create new database "][/caption] You will get the following error when trying to import the database file: #1044 - Access denied for user 'username'@'localhost' to database 'database_name' To get around this problem and to complete importing your database to your new host do the following: Login to your cPanel and click on 'MySQL Databases'. Create a new database with your preferred name (I am going to use the name 'newDB' for easy reference. You should have privilege to create a new database ...
Nov 17, 20084

How to fix WordPress.com Stats plugin showing zero (0) visitors!

Categories: Troubleshooting
How to fix WordPress.com Stats plugin showing zero (0) visitors!
This article explains how to fix WordPres.com Stats plugin when it doesn't show any statistics for your site or shows 0 visitors.
Nov 15, 20082

Apache Mod Security update, How to Fix ‘Error 406′ or ‘Not Acceptable’ issue

Categories: Troubleshooting
Apache Mod Security update, How to Fix ‘Error 406′ or ‘Not Acceptable’ issue
Few weeks ago I started having "Not Acceptable! Error 406" on one of my WordPress sites when trying to save a post or a page. I kept getting the following message when trying to save a post.
Nov 13, 20089

How to Uninstall and Reinstall WordPress

Categories: Troubleshooting
How to Uninstall and Reinstall WordPress
In this post I have explained how you can uninstall and reinstall WordPress. You will rarely think about uninstalling/reinstalling WordPress on your site unless you start having 'Apache security mod rewrite and htaccess' issue like myself.  I decided to Reinstall WordPress on one of my sites after trying numerous fixes to solve the issue and getting no result. Some people uninstall/reinstall WordPress to start over from scratch. Anyway, whatever the reason is, you can uninstall and reinstall WordPress the following ways.

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