Make sure you are updated to Lightroom 5.7.1. Go to Help->Updates.
So you are having a problem Import the 7D raw files into LR? Is that correct.
What happens, exactly, when you click on the Import button in the Library module?
Are you connecting the camera directly to your computer? Or are you removing the memory card from the camera and using a card reader.
Are you selecting Copy or Move in the Import dialog window? And do you have a Destination selected to Copy or Move the images to.
Without First Selecting a Destination no images will show up.
"I have" means you have done Help / Updates (and maybe it didn't work) or that you have updated to LR 5.7.1?
What version of LR are you running? You can determine this via Help / About Adobe Photoshop Lightroom xx.xx.xx.xx.
You need a version of LR that was released after the 7D2 came out and if you don't then it won't work.
If you aren't running LR 5.7.1 and are using the serial-number-activated version of LR, you can download it from here:
Instead of getting frustrated, why not tell us exactly what happens when you try to import? I use the 7D Mk II as well, and I can assure you that Lightroom plays very nicely with it.