Handling Errors & Warnings in R | List of Typical Messages & How to Solve


This page explains some of the most common error and warning messages in the R programming language.

Below, you can find a list of typical errors and warnings. When clicking on the bullet points of the list, you are headed to detailed instructions on how to deal with the corresponding error or warning message.

You may use the list as cheat sheet whenever you are facing an error or warning message in R.

Let’s dive into the examples!

How to Solve Error and Warning Messages in R


List of Typical Errors & Warnings in R (+ Examples)


Debugging in R – Some General Advice

Debugging in R can be a painful process. However, there are some useful tools and functions available that can be used to make the debugging more efficient.

One of these tools is the interactive debug mode, which is built into the RStudio IDE. This tool helps to find bugs by locating where the code is not working in the way you would expect, and can therefore be very helpful in case you are dealing with a more complex R code. You can read more about RStudio’s debug mode here.

Another useful method to handle errors and warnings is provided by the tryCatch function. This function can be used to check if an R code leads to an error or warning message, and it can be used to skip an error message in order to continue running the code. You can learn more about the application of the tryCatch function here.

In case you want to learn more about typical R programming error messages and the handling of these errors, you may also have a look at the following YouTube video. In the video, the speaker Andres Karjus explains some common error messages that beginners often get and how to quickly figure them out.


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Note that there are usually different reasons why an error or warning message can occur. Please let me know in the comments in case the provided tips and tutorials on this page didn’t solve your problem.

Furthermore, please let me know in the comments in case the error or warning message you have problems with is not included in the previous list.

I’m looking forward to hearing from you in the comments!


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