File/Send/E-mail document works but option to add a form as an e-mail attachment throws an error.
I see the same result. It is probably a bug. Do a search at Bugzilla and if there is not one reported already, you should submit a Bug report.
If this answers your question please click on the (upper left area of answer).
hello,
I want to prepare pdf form to send it by email. How can I do?
Please ask as a question and not as an answer. Although the OP was about email, the questions are different. Also, do not post as wiki and provide more information.