Warning: Duplicate identifier 'introduction' at line 10317 column 1
Warning: Duplicate identifier 'challenges' at line 10940 column 1
Warning: Duplicate identifier 'conclusion' at line 10952 column 1
Error running filter /opt/quarto/share/filters/main.lua:
/opt/quarto/share/filters/main.lua:8989: attempt to call a nil value (global 'marginCitePlaceholderInlineWithProtection')
stack traceback:
/opt/quarto/share/filters/main.lua:9059: in function </opt/quarto/share/filters/main.lua:9052>
[C]: in ?
[C]: in method 'walk'
/opt/quarto/share/filters/main.lua:224: in local 'checked_walk'
/opt/quarto/share/filters/main.lua:276: in function 'run_emulated_filter'
/opt/quarto/share/filters/main.lua:8993: in local 'filter_fn'
/opt/quarto/share/filters/main.lua:302: in function </opt/quarto/share/filters/main.lua:292>
(...tail calls...)
[C]: in ?
[C]: in method 'walk'
/opt/quarto/share/filters/main.lua:224: in function </opt/quarto/share/filters/main.lua:214>
(...tail calls...)
/opt/quarto/share/filters/main.lua:942: in local 'callback'
/opt/quarto/share/filters/main.lua:960: in upvalue 'run_emulated_filter_chain'
/opt/quarto/share/filters/main.lua:996: in function </opt/quarto/share/filters/main.lua:993>
stack traceback:
/opt/quarto/share/filters/main.lua:224: in local 'checked_walk'
/opt/quarto/share/filters/main.lua:276: in function 'run_emulated_filter'
/opt/quarto/share/filters/main.lua:8993: in local 'filter_fn'
/opt/quarto/share/filters/main.lua:302: in function </opt/quarto/share/filters/main.lua:292>
(...tail calls...)
[C]: in ?
[C]: in method 'walk'
/opt/quarto/share/filters/main.lua:224: in function </opt/quarto/share/filters/main.lua:214>
(...tail calls...)
/opt/quarto/share/filters/main.lua:942: in local 'callback'
/opt/quarto/share/filters/main.lua:960: in upvalue 'run_emulated_filter_chain'
/opt/quarto/share/filters/main.lua:996: in function </opt/quarto/share/filters/main.lua:993>
stack traceback:
/opt/quarto/share/filters/main.lua:224: in function </opt/quarto/share/filters/main.lua:214>
(...tail calls...)
/opt/quarto/share/filters/main.lua:942: in local 'callback'
/opt/quarto/share/filters/main.lua:960: in upvalue 'run_emulated_filter_chain'
/opt/quarto/share/filters/main.lua:996: in function </opt/quarto/share/filters/main.lua:993>
Error: Process completed with exit code 1.