下載swirl套件，出現下列訊息，不能進入 [00-Hello-DataScienceAndR]課程

[aven0524]

| Hi! Type swirl() when you are ready to begin.

Error in curl::curl_fetch_memory(url, handle = handle) :
Peer certificate cannot be authenticated with given CA certificates

[aven0524]

不能進入 [00-Hello-DataScienceAndR]課程
| To begin, you must install a course. I can install a course for you from the internet, or
| I can send you to a web page (https://github.com/swirldev/swirl_courses) which will
| provide course options and directions for installing courses yourself. (If you are not
| connected to the internet, type 0 to exit.)

1: R Programming: The basics of programming in R
2: Regression Models: The basics of regression modeling in R
3: Statistical Inference: The basics of statistical inference in R
4: Exploratory Data Analysis: The basics of exploring data in R
5: Don't install anything for me. I'll do it myself.

Selection: 1
|===================================================================================| 100%

| Course installed successfully!

| Please choose a course, or type 0 to exit swirl.

1: R Programming
2: Take me to the swirl course repository!

Selection: 1

| Please choose a lesson, or type 0 to return to course menu.

1: Basic Building Blocks 2: Workspace and Files 3: Sequences of Numbers
4: Vectors 5: Missing Values 6: Subsetting Vectors
7: Matrices and Data Frames 8: Logic 9: Functions
10: lapply and sapply 11: vapply and tapply 12: Looking at Data
13: Simulation 14: Dates and Times 15: Base Graphics

[wush978]

你應該是安裝失敗了。
請重開R後再執行：source("http://wush978.github.io/R/init-swirl.R")一次

[wush978]

如果有錯誤，歡迎再re-open issue