Reproducible Research Using R An Open Educational Resource

Section 10.12 Common Rendering Errors and How to Fix Them

• Object not found: An object is used before it is created.

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  • Fix: Make sure all objects are defined earlier in the document and not only in the R environment.
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• Missing package: A required package is not loaded or installed.

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  • Fix: Load all necessary packages inside the Quarto document using library().
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• Duplicate chunk labels: Two R chunks share the same name.

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  • Fix: Ensure every R chunk has a unique #| label:.
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• File not found: An image or data file cannot be located.

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  • Fix: Check file names, capitalization, and that files are stored in the correct directory.
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• Code runs in console but not when rendering: The document relies on objects outside the file.

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  • Fix: Restart R and render the document to confirm it runs in a clean session.
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