Unterminated terminated tie

[Mike Dean]

I am needing to figure out how to best tie a note...

\version "2.24.0"

  \relative c' {
  \key af \major
  \time 2/4
  \tempo "Not fast"
   ef8 c' ~c16 bf af g f ef8 df16 c8 bf16 af g af bf c df ef f g af8 r r4
   \repeat volta 2 {
     c8 c4 ef8 f16 (ef8) f16 (ef) f16 (ef8)
     bf'16 (af8) bf16 (af) bf (af) ef!~
     << { ef2}
        \\
        { r8 ef,16 (f g af bf b) }
     >>

I am getting an unterminated tie warning:

C:/Users/Mike Dean/Documents/musicwork/Lilypond/The-Easy-Winners-melody.ly:19:39: warning: unterminated tie

bf'16 (af8) bf16 (af) bf (af) ef!

~

and the tie needs to go from the ef! to the ef2 in the top of the simultaneous voice.

I have a couple of other instances where I need to do likewise, so any help will be welcome. Thanks.

Mike Dean