The path is wrong. You don't what to use two forward slashes (//). You want to use one forward slash (/). Like this:
Sometimes, on Windows, people will use backslashes instead of forward slashes (since that's what the Windows OS uses), but forward slashes work just fine on Windows too (plus backslashes don't work on other operating systems). Backslashes have to be escaped, however, because backslashes form escape sequences. Thus, if you did use backslashes, then you would have two of them in a row and it would be like:
But I'd still go for the single forward slash version.