I had the same issues that many people here are having. I called TurboTax twice, on the phone almost 3 hours, and went through all the suggestions mentioned here, but did not help.
So I deleted my stock income portion and chose to manually input the information myself instead of syncing to my trading account. Instead of input the sales individually (which was a long list), I selected to input the total of each sections instead. This information can be found in the summary of your 1099-B. At the end, I was required to upload a pdf file of my 1099-B. And I was able to proceed to e-file my tax without problem after that.
Hope this help some of you!
