Here's how you can fix it:

Sign in to your account and select the Fix my return button. Follow any “fix it” instructions to update the information causing the rejection.

Note: Not all rejections will have explicit guides to fix the information. You’ll need to navigate to the program area to address the cause of the rejection.

Time-saving Tip: If what you originally entered is correct, you won't be able to e-file. There's probably a data mismatch at the government, a dependent that's already been claimed, or some other situation beyond your control that prevents your return from being e-filed. In this case, your only option would be to print and mail in your return. This article will give you instruction on how to print and mail your return.

Additional reject instruction here.

Turbo tax said that I have to mail my taxes because it  Was rejected

If you were informed by TurboTax that you would need to mail your return because it was not possible to e-file it, and if the guidance above doesn’t work, then please see the appropriate TurboTax Help article below for instructions on filing your return by mail.

How do I print and mail my return in TurboTax Online?

How do I print and mail a return in the TurboTax for Windows CD/Download software?

all i need is to correct a figure

all i need is to change a duplicate entry,i want to delete the duplicate entry

it is not a rejection it is a duplicate entry

it is not a rejection

i need a person

There are different ways to delete, depending on what you are trying to delete. For a form:  

1. Open or continue your return in TurboTax.
2. Locate Tax Tools 
3. Select Tools
4. See the pop-up window Tool Center
5. Choose Delete a form
6. Select Delete next to the form/schedule/worksheet in the list and follow the instructions.
7. Follow the instructions

Some things can be deleted with a trashcan or delete button.

@rivermar