Colorado e-file error with required pdf attachment

[prlaundre]

I am getting an e-file error on Colorado's Form 104CR, requiring an attachment of another state's tax return.  I have attached the state tax form, but the system is still telling me I need to attach a copy of the state tax form for which a credit for payment of income tax to another state is being claimed.  Is there something that needs to be checked to fix this?

[itonewbie]

Probably an obvious question but did you link the attachment to 104CR?

[fmelamed]

How do you link the file to 104CR?

[itonewbie]

See this article for detailed instructions: https://proconnect.intuit.com/community/electronic-filing/help/how-do-i-attach-pdf-files-to-federal-...