Scenario:
I have a fresh installation of Magento 1.4. I already have installed the sample data for Magento.
Now, when I go to the category listing page, no products are displayed. It says “There are no products matching the selection.“.

I got this error message when migrating my Magento files and database from one server to another.
Notice: Undefined index: 0 in app/code/core/Mage/Core/Model/Mysql4/Config.php on line 92
Solution:

IFrames are not supported with XHTML 1.0 Strict Doctype.
When you use IFrame and your doctype is XHTML 1.0 Strict, then you cannot pass the W3C Markup Validation test. You always get errors.
The errors are like:-

Problem:
I am using Magento 1.4. Homepage loads fine. When I go to category (product listing) page, it works fine. But when I go to any product detail page, I get the following error:-

There has been an error processing your request

I was building a custom module in Magento. I had created a system.xml file for storing configuration data from admin. From the below system.xml file, you can see that I have created a section named ‘My Module Name‘ which can be accessed from Admin –> System –> Configuration.
In the file below, I have just displayed the section and groups name. I have omitted others fields with dots, as they are not necessary here.

Scenario:
While editing product programatically from frontend. I was trying to change the status of the product with the following code:
Mage::getModel(‘catalog/product’)->load($product->getId())->setStatus(2)->save();

I’m human, Google !

I was googling something and google suddenly said sorry to me. It says my computer is sending automated queries. I was just googling “magento programmer developer nepal” by changing the word position at each time. I just googled this way for at most 5 times.
Google help says the following thing about this issue:

Problem:
I had a new installation of magento. But I was unable to login as an administrator. I went to the admin login page, entered correct username and password but was redirected to the same login page. I could not enter the dashboard page. Error message is displayed when I enter wrong username or password. But nothing is displayed and I am redirected to the same login page when I insert correct username and password.
Solution:

Scenario:
I am installing a fresh magento 1.3.2.1 in my Windows XP computer. I have Xampp installed. While installing magento, I had a problem at the configuration step where I had to fill database host, username, password etc. When I click continue after filling the required fields, the installation process doesn’t move forward. I am redirected to the same page.
Solution:

I was installing Magento 1.3.2.1 in my Windows XP computer. I am using Xampp. I encountered the following errors during the installation.
PHP Extension “curl” must be loaded
PHP Extension “mcrypt” must be loaded
PHP Extension “pdo_mysql” must be loaded