BibTeX error “inputenc Error: Unicode char \u8: not set up for use with LaTeX” [closed]

Question

So I am trying to get BibTex to work and I run into the above error: . After a quick search in here I found that it is a problem with extra space in the BibTex file that could be solved by adding the \DeclareUnicodeCharacter{00A0}{~} to the preamble. So I did that but I still get the error. I have added the part of the preamble where I have added the line. Can anyone see where I'm going wrong? (Using Texmaker on mac)

\usepackage[Lenny]{fncychap}         
\usepackage[english]{babel}  
\usepackage[T1]{fontenc}         
\usepackage[utf8]{inputenc}    
\DeclareUnicodeCharacter{00A0}{~}
\usepackage{verbatim}            
\usepackage{shortvrb}            
\usepackage{courier}             
\usepackage{ae}                  
\usepackage{booktabs}            
\usepackage{color}               
\usepackage{enumerate}           
\usepackage{longtable}                  
\usepackage{palatino}               
\usepackage{footmisc}                       
\usepackage{eso-pic}
\usepackage[font={small}]{caption}