Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports.

Open
#116 2 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
react-native, typescript
Domain
mobile

Research direction

Start by comparing the documented HeaderImageScrollView usage with the component's TypeScript exports and import shape. Reproduce the reported React.createElement and JSX errors, then verify that the documented usage resolves to a callable component without the undefined-type warning.

Written by the indexing model from the issue text.

Description

Hello,

I get this error on use like your doc :

React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports.

And HeaderImageScrollView component is not define as component : JSX element type 'HeaderImageScrollView' does not have any construct or call signatures.ts(2604)

image

Thanks in advance

Dominant language
TypeScript
Stars
1k
Forks
101
PR merge metrics
No merged PRs in 30d

Getting set up

This project ships no dev container, Dockerfile or contributing guide, so setting up is up to you: start from its README, and see our first-contribution guide for the general steps.

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from bamlab/react-native-image-header-scroll-view

All issues in bamlab/react-native-image-header-scroll-view

Similar issues

More TypeScript issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.