If you have this error, the core issue is the dyld issue.
dyld is a shared library (
The error is a product where the library path cannot be found at run time. Most likely you have installed a framework to your project and there is an issue in the standard location (such as /Library/Frameworks) on your build and the framework that you have added.
While I have posted an article about how to POST an image using REST in Drupal 8... the journey there can be slow. Crawling through the errors to eventually spot the missing link. For me the how to is as important as the solution.
On the journey I did receive the following 404 Not Found error:
You have been working hard on getting comments being added (POST) through REST in Drupal 8. However, now you are seeing the following Assigning the wrong user against a new comment - and most likely the new comment is being assigned to the site admin.
The error here is related to the _embedded uuid.
What to do
You need to check that you have the correct uuid for both the entity_id and the uid
If you are like me you probably have searched for clues to and found little... particularly when confronted by the errors as you unravel how this works. Okay a slight exaggeration, there are snipets of info that people have solved this annoying issue in making comments work in Drupal 8 REST services.