20: Target already set
Targets set with
# must be unique. The same target can be referenced multiple times but cannot be set twice. However, your document sets the same target more than once.
Use different words as targets. You can also use backticks to create targets that span multiple words, for example
#`The Beatles` and
If you did not mean to set a target, but want to use the hash
#, you can prepend a backslash: