Invalid Project Directory Casing
Why This Error Occurred​
When starting Next.js, the current directory is a different casing than the actual directory on your filesystem. This can cause files to resolve inconsistently.
This can occur when using a case-insensitive filesystem. For example, opening PowerShell on Windows navigating to cd path/to/myproject instead of cd path/to/MyProject.
Possible Ways to Fix It​
Ensure the casing for the current working directory matches the actual case of the real directory. Use a terminal that enforces case-sensitivity.