check_twitter_oauth（）出错：OAuth身份验证错误

Question

我正在尝试使用R从twitter中提取推文。在建立与twitter API的连接时，我收到以下身份验证错误：

> setup_twitter_oauth(api_key, api_secret, token, token_secret)
[1] "Using direct authentication"
Error in check_twitter_oauth() : OAuth authentication error:
This most likely means that you have incorrectly called setup_twitter_oauth()'

这是我正在使用的代码：

api_key <- "api_key here"
api_secret <- "api_secret here"
access_token <- "access_token here"
access_token_secret <- "access_token_secret here "
setup_twitter_oauth(api_key,api_secret,access_token,access_token_secret)

我的R会话是：

Session info 
 ------------------------------------------------
 setting  value                       
 version  R version 3.2.2 (2015-08-14)
 system   x86_64, linux-gnu           
 ui       RStudio (0.99.489)          
 language (EN)                        
 collate  en_US.UTF-8                 
 tz       <NA>                        
 date     2016-01-19 

我尝试重新生成访问权限和令牌密钥，创建新应用，更新回调网址但仍然无法解决我的问题。

正如所建议的那样，我已将httr和twitteR软件包更新到最新版本，但我仍然收到错误。

请找到以下我得到的错误：

> setup_twitter_oauth(api_key, api_secret, token, token_secret)
[1] "Using direct authentication"
Use a local file to cache OAuth access credentials between R sessions?
1: Yes
2: No

Selection: 1
Adding .httr-oauth to .gitignore
Error in file(con, "w") : cannot open the connection
In addition: Warning message:
In file(con, "w") : cannot open file '.gitignore': Permission denied 

> setup_twitter_oauth(api_key, api_secret, token, token_secret)
[1] "Using direct authentication"
Use a local file to cache OAuth access credentials between R sessions?
1: Yes
2: No

Selection: 2
Error in check_twitter_oauth() : OAuth authentication error:
This most likely means that you have incorrectly called setup_twitter_oauth()'

请提供您的建议。

由于