get problem at polls tutorial chart5.

thanks in advance!
I am learning the programing , I just do the code exactly the same operation like the tutoral,but the result was unexpected.
I think my problem is about the quotation marks but I don’t know what I should do to make them exactly the same! thank you for your kind help!

Please post your IndexView.

Also, please don’t post images of code. Copy/paste the code directly into the body of your messages here, surrounded by lines of three backtick - ` characters. This means you’ll have a line of ```, then your code, then another line of ```.