Because the scheme does not have a registered handler.

When encountering the error message “because the scheme does not have a registered handler.”, it means that the URL scheme you are trying to access does not have a defined handler on the system or within the web browser being used. URL schemes are used to specify protocols or actions to be performed when clicking on certain links.

The error can occur in various scenarios, such as when trying to open a custom scheme or protocol that is not recognized by the browser or the operating system. For example, if you try to open a link with a custom scheme like “myapp://action”, but the system or browser does not have a registered handler to handle that scheme, you will encounter this error.

To resolve this issue, you need to ensure that the scheme you are using is properly registered and has a corresponding handler. Here are some steps to consider:

1. Check documentation: Review the documentation or specifications for the URL scheme you are trying to use. Make sure you are following the correct format and required setup steps.
2. Verify handler registration: Check if the expected handler for the scheme is properly installed or configured on the operating system or within the browser being used. This might involve installing additional software or plugins.
3. Use supported schemes: If you are developing a web application, ensure that you are using a well-known and supported URL scheme. Common schemes like “http://” or “https://” are recognized by browsers by default and do not require additional handling.
4. Fallback options: Consider providing fallback options or alternative methods for achieving the desired action if the scheme is not registered or supported. This way, users can still access the functionality without encountering errors.

It’s important to note that the exact steps for resolving this error can vary depending on the specific use case, operating system, and browser being used. Consulting platform-specific documentation or seeking assistance from relevant forums or support channels might provide more tailored guidance.