Empty src in eclipse

[KaptinSponges]

Ok, so i looked everywhere for this. Nobody whatsoever has this problem. I downloaded mcp, ran install.cmd, got the scala error which people told me to ignore, so far so good. I link my eclipse to the mcp\eclipse folder, but there is no little arrow next to "src". It looks like this: 

As you can see, I cannot expand the src folder. There's nothing there. I went on videos and they all have it working for them. Is there anything im doing wrong?  Thanks.

[larsgerrits]

Please, update toversion .964, asthat uses gradle.