Problem with export R Markdown

I used the R markdown default file, but I still cannot render it because of the error.


title: "Untitled"
author:
date: "r Sys.Date()"
output:
pdf_document: default
html_document: default

knitr::opts_chunk$set(echo = TRUE)

R Markdown

This is an R Markdown document. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see http:\rmarkdown.rstudio.com.

When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:

summary(cars)

Including Plots

You can also embed plots, for example:

plot(pressure)

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot.

And this error happen.

**Error: '\U' used without hex digits in character string (<input>:4:36)**
**Execution halted**

Please can you format your issue correctly ?

Do you have such \U somewhere in your code cell content or function executed ?

Already done. But I'm not sure that all of it was alright.

Your RMD code is still not formatted correctly .

What is the content of your document that throw this error ?

Is this the complete error when you run rmarkdown::render() in R console on the document ?

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