Handle edge cases in export

**Problem**
When working with components, the error messages could be more descriptive.

**Suggestion**
Improve error handling and add detailed error messages.

**Context**
This would help with debugging and maintenance.

Start by locating the export handling and component error paths in the repository, then identify which edge cases currently produce unhelpful messages. Reproduce the affected cases before changing behavior; done means export failures report detailed, useful errors and the relevant cases are covered by tests if the project has them.

Written by the indexing model from the issue text.