It is finding "45 errors" but the error is Intuit's: it demands dates and cost basis on Capital Asset Sales Worksheet, but the numbers there are expenses from the 1099B, not asset sales at all!
If you are unable to download the 1099-B information from your broker, you may consider reporting summary information.
Your brokerage statements should include a summary of your transactions, grouped by sales category, for example, Box A short-term covered or Box D long-term covered.
You will enter the summary info instead of each individual transaction. Follow these steps.
The 1099-B or brokerage statement will be mailed to the IRS with form 8453 after the tax return is electronically filed.