Question

我只是想将默认的Rmarkdonw代码（关于mtcars）编织成HTML（甚至是PDF）而且它无法正常工作。以下是Rmarkdown控制台中的完整错误消息：

Error in !character.only : invalid argument type
Calls: library
Execution halted

以下是knit中的默认代码：

---
title: "Untitled"
author: "Piyush Verma"
date: "December 19, 2017"
output: html_document
---

```{r setup, include=FALSE}
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 contents as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:

```{r cars}
summary(cars)
```

## Including Plots

You can also embed plots, for example:

```{r pressure, echo=FALSE}
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.

我也试过做以下事情，但没有任何效果：

Tools - ＆gt; Global options - ＆gt; Sweave - ＆gt; Weave RNW files using ...从sweave到knitr
重新安装rmarkdown和knitr并在运行编织选项之前附加库

任何建议都非常感谢。这是关于提交约翰霍普金的实用机器学习课程的最终项目。

Answer 1

大家好，他们都试图提供帮助。

我能够通过重新安装R和RStudio来解决问题。重新安装并运行默认的Rmarkdown代码后，RStudio再次安装Rmarkdown软件包并在最后工作。

谢谢。

如何在r中编织时修复“调用：库执行暂停”错误？

1 个答案: