The 'generateRandomContacts' method failed to execute. Either the method does not exist, is not static, or did not return the correct set of Contact records

hey,

Try out this one , if it helps!

Please mark as Best Answer if it helped to close the thread:)

public with sharing class RandomContactFactory
{
	public static List<Contact> generateRandomContacts( Integer noOfContacts, String lastName )
	{
		List<Contact> contacts = new List<Contact>();
		for( Integer i = 0; i < noOfContacts; i++ )
		{
			Contact con = new Contact( FirstName = 'Test '+i, LastName = lastName );
			contacts.add( con );
		}
		return contacts;
	}
}