I enabled Knowledge on Lightning, Created custom text fields called Question and Answer on Articles, created three types of articles: FAQ, Product, and Community and assigned them to respective layout : faqpagelayout, productpagelayout, and communitypagelayout. 

But am still getting an error: 
Challenge Not yet complete... here's what's wrong: 
Didn't find article record types with the following names: FAQ, Product, and Community. Each article record type must be assigned to the correct page layout.​

Actually I am facing below error in challange 8 

 Challenge Not yet complete... her's  what's wrong: Each article record type must contain the Question, Answer, and Record Type fields. Knowledge users must have the ability to select a record type when creating or editing articles.

NB: I have already created 3 resord types and also assing pagtlaouts with those,but still getting this error.

Please can you help me out to resolve this