Added some basic error responses.
Added some basic error responses.
apiman/apiman-studio,Apicurio/apicurio-studio,apiman/apiman-studio,Apicurio/apicurio-studio,Apicurio/apicurio-studio,Apicurio/apicurio-studio,Apicurio/apicurio-studio,apiman/apiman-studio,apiman/apiman-studio,apiman/apiman-studio