Debugging and common errors

Use validation helpers before batch conversion:

validate_input("lesson.qmd", format = "learnr", assessment = "both")
validate_output("lesson-tutorial.Rmd", "lesson.qmd", overwrite = FALSE)

Typical failure causes:

• invalid MCQ YAML schema,
• inaccessible output path,
• duplicate chunk labels from source documents,
• missing Quarto live extension for quarto-live output.