strange error when creating context (was: "re: terrible question...")

[hhpmusic]

Hello,
  Now the strange warning comes, saying it can't create the CHordMarks context. I used something like a Dynamics context, and also changed the context name to \new Dynamics. Although other piano pieces can use Dynamics,, this exercise can't, always saying can't create new "Dynamics" or "ChordMarks". Why?

Haipeng
 

 

 

 

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350万起 独栋山墅

chords.ly
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harmony.log
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harmony.ly
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