我正在尝试将我的Rmarkdown文档编织为pdf，但它不断出现以下消息：
Error: Failed to compile R_Markdown.tex. See https://yihui.name/tinytex
/r/#debugging for debugging tips.In addition: Warning message:In
readLines(logfile) : incomplete final line found on
'R_Markdown.log'Execution halted
编织到html和word而不是pdf时很好，我安装了MiKTex，并且安装了最新更新，那么问题是什么？我在下面附加了我的代码：
---
title: 'Maths Skills 2: Recent advances in statistics project'
author: "Jamie Tse"
date: "28 March 2019"
output: pdf_document
---
#Part A: UK fishing Vessels
The goal of this part of the project is to provide a graphical representation of the geographical distribution of
UK fishing vessels under 10 metres in length.
## Creating a map of the UK using ggmap
I begin by loading the `tidyverse` and `ggmap` packages:
```{r,eval=FALSE}
library(ggmap)
library(tidyverse)
然后我找到了一个合适的包围英国的边界框
bbox <- c(-9.05, 48.77, 2.19, 61)
然后，使用此边界框，我使用UKmap函数创建了地图ggmap()：
UKmap <- ggmap(get_map(location = bbox, source = "stamen", maptype = "toner"))
在创建要在其上绘制数据的地图后，我读入了运输船数据并使用vessels函数将其保存到read.csv()
vessels <- read.csv("Jan_2019_Under_10m_vessel_list.csv")