Resolving NotFound Panic in VSCode Rust Debugging with lldb and cppvsdbg

Discover how to fix the `NotFound` panic error while debugging Rust programs in VSCode with `lldb` and `cppvsdbg`. Follow our step-by-step guide to use absolute paths for resolving file access issues.
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Fixing the NotFound Panic in VSCode Rust Debugging with lldb and cppvsdbg

When working with Rust in Visual Studio Code, you might encounter frustrating errors during debugging sessions. One such error is the NotFound panic, which can halt your debugging process and leave you scratching your head. In this guide, we will explore the root cause of this error and provide a solid solution to help you get back on track.

Understanding the Problem

You may encounter the following panic message while debugging:

[[See Video to Reveal this Text or Code Snippet]]

This error essentially indicates that the Rust program is attempting to access a file, but it cannot find the specified path. This situation often arises when the path to the file used in your code is provided as a relative path, which may not resolve correctly during debugging.

Tracing the Backtrace

To understand the context of the error, it's helpful to look at the backtrace, which outlines the sequence of function calls that led to the panic. Below is a shortened version of the backtrace that reveals where the problem originated:

[[See Video to Reveal this Text or Code Snippet]]

These lines tell us that the error occurred in the parse_replay function of the replay_parser module at line 167.

The Solution

The underlying problem is that the specified file path could not be resolved. To resolve this issue, follow these steps to provide an absolute path instead:

Identify the File's Full Path:

Locate the file you are trying to access on your filesystem. Ensure that you have the correct full path.

Update Your Code:

Replace the relative path in your code with the absolute path. For example, if you are currently using:

[[See Video to Reveal this Text or Code Snippet]]

Change it to:

[[See Video to Reveal this Text or Code Snippet]]

Save Changes and Debug:

After making the changes, save your file and attempt to debug again. By providing an absolute path, your program should now correctly locate the file and proceed without encountering the NotFound panic.

Conclusion

Debugging in Rust using lldb and cppvsdbg can be challenging, especially when facing issues like the NotFound panic. By understanding the root cause and making a small adjustment to your file paths, you can save yourself from a lot of headache and keep your debugging sessions smooth and successful.

If you continue to encounter problems, don't hesitate to explore the debugging tools available in VSCode or consult online resources for additional strategies. Happy coding!

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