How do I troubleshoot errors in my Go application?

I'm getting a 'nil pointer dereference' error in my Go application. What does it mean?

A 'nil pointer dereference' error occurs when your code tries to access a memory location that hasn't been initialized. It usually means you're trying to use a pointer that is set to nil.

How can I find out where this error is happening?

You can use the Go runtime's stack trace to identify where the error occurred. Running your application with the -race flag can also help catch race conditions that might lead to this error.

What are some common causes of this error?

Common causes include dereferencing a pointer that hasn't been assigned a value, or trying to access a field or method on a nil struct.

Any tips for preventing this error in the future?

Always check if a pointer is nil before dereferencing it. You can also use the go vet tool to catch potential issues during development.