Weird.  Google came up with links for TaxAct and TurdoTax, both saying you have to paper file.  However, the IRS says this:

If the taxpayer is unable to secure and provide a correct Form W-2, Form W-2G, or Form 1099-R, Distributions from Pensions, Annuities, Retirement or Profit-Sharing Plans, IRAs, Insurance Contracts, etc., the ERO may electronically file the return after the taxpayer completes Form 4852, Substitute for Form W-2, Wage and Tax Statement or Form 1099-R, Distributions from Pensions, Annuities, Retirement or Profit-Sharing Plans, IRAs, Insurance Contracts, etc., in accordance with the use of that form.