I was trying to create a knowledge article and publish it but getting the below error

Please help.

Thanks
- Kavya

I was trying to do an activity "Enable Salesforce Knowledge" and it said you can complete on salesforce classic. I have been using salesforce classic but still I cannot find Knowledge in the Quick search.



Could someone help me out here?

- Thanks,
  Kavya

I was trying to create a knowledge article and publish it but getting the below error

Please help.

Thanks
- Kavya

I was trying to do an activity "Enable Salesforce Knowledge" and it said you can complete on salesforce classic. I have been using salesforce classic but still I cannot find Knowledge in the Quick search.



Could someone help me out here?

- Thanks,
  Kavya

I am having issues with Creating  an Apex class that returns Account objects for the Mapping.net concepts challenge.  I am a VB and Javascript programmer and I can't seem to get the syntax right.   
public class AccountUtils {
    
    public static void accountsByState(String st){
       List<String> accts = [SELECT Id, Name FROM Account WHERE billingState = :st];
 }
  
}
I believe the first part is correct, but I cannot seem to get a return value.  I am confused by the constructors.  I have tried the documentation but I can't get a return value.  Please help.  I need to get this challenge complete.