Here are several ways to find bugs in Magento 2, depending on the specific problem you're trying to solve. Here are a few methods that can be helpful:
- Logging: Magento 2 has built-in logging functionality that allows you to log events and messages to various log files. These log files can be very helpful in identifying bugs, as they often contain detailed information about what went wrong.
- Debugging: Magento 2 includes a built-in debugging tool called the Magento Debugger. This tool allows you to step through your code line by line, and see the values of variables at each step. This can be very helpful in identifying bugs, as you can see exactly what your code is doing at each step.
- Profiling: Magento 2 provides built-in support for profiling, which allows you to measure the performance of your code. This can be very helpful in identifying bottlenecks and areas where your code is slow.
- Code Review: manually review your code, you can use this time to identify the bugs, check if the code is following best practices and if it is maintainable.
- Unit Testing: Magento 2 includes built-in support for unit testing, which allows you to write tests for your code. This can be very helpful in identifying bugs, as well as ensuring that your code is working as expected.
- Using an extension that help you to find bugs like: Mage Report, Mage Health, Magento 2 Extension Quality Program, the tool checks for bugs, security vulnerabilities, and compatibility issues with other extensions.
- Consult the Magento 2 Community, Magento's official website, or other online resources: This is where developers from around the world share their knowledge and experience. You may find answers to your question, or maybe you'll find a bug or an error that has been fixed.
It is important to note that, many bugs could be related to server side issues, and in this case, you need to check your server logs, server configurations, and make sure that your server meets magento 2 requirements.