You cannot e-file not because of simplified AMT foreign tax limitation.  There is another issue 

which has been submitted and is currently under investigation.  If you would like to receive an update for the progress, click on the following link to get notified:

Form 1116 reject error

If, in the previous year, you have used the AMT adjustments to determine your taxable income and deductions on Form 1116 for AMT purposes, you must continue to use this method ( Simplified Limitation Election for AMT) this year.  You should only select No on the screen, if last year's decision was an error and you did not enter AMT adjustments in the first year you were required to file Form 1116 for AMT purposes.  

The 1116 link says solved and talks about a 1099-int issue with foreign taxes. This issue is with amt simplified not allowing efiling and it remains a problem....when will that be fixed? It wasn’t a problem last year. I see another thread with dozens of people having this problem.

There are e-file issues with the Form 1116 in general.  Please sign up for notification here: Form 1116 reject error

@Walnut5

I am having this same problem.  When will this problem be fixed?

Some TurboTax customers are having issues with e-filed returns being rejected due to Foreign Tax Credit for US tax being withheld on 1099-DIV amounts received from mutual funds.

If you're experiencing this issue, please go here to receive notifications for any updates related to this issue.