"general system exception"

Let’s suppose that you need to import a product CSV file, that follows the Magento 2 requirements, to a new installation. What could go wrong? Unfortunately, several errors may occur when you do that, including “URL key for specified store already exists”. In the following article, we explore the issue on the example provided in a StackExchange discussion, where Zed Blackbeard argues that it is impossible to import products to Magento 2 due to the general system exception. Magento informs its administrator who runs the update that the URL key for the specified store already exists. After that, the system breaks the import. 

Below, you will discover the conditions that cause the problem. After that, the article provides several possible resolutions. To be more specific, we provide recommendations from the appropriate StackExchange discussion as well as deliver our approach that incorporates the Improved Import & Export extension. If you face other issues while using your Magento installation, you may try to find them described in this blog post: Magento 2 Cookbook.
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