Hi
ANRAPI,
Looking at your errors it appears that you might have errors in the content of the .json file itself, especially the last error. You might have some malformed/invalid detail in the file cos it appears at least from the last error it looks like you have an attribute value that doesnt correspond to a defined regex pattern.
Have you tried using checking the wellformedness/validity of the file via an online tool or something like a recent version of xmlspy (which includes .json wellformed/valid functionality)?
Id double check the file to ensure its ok and if not (as the errors may suggest) fix the file and then retry.
Id also check ReadyAPI!'s release notes regarding openAPI/swagger to double check if v3.0 is supported. If its not, then youll have to downgrade your opemAPI file to the earlier supported version.
Cheers,
Rich