title: R code suddenly stopped working in tidy text
body: <p>I am trying to do word analysis on some data in R.  I imported one column of data that was text responses from a survey into R using read.csv.  I named one of the columns "text" . This code was working fine a few days ago and now it suddenly is giving me an error.  This is the code I am entering:</p>
  
  <pre><code>library(dplyr)
  
  library(tidytext)
  
  A1&lt;-read.csv("/Users/Laura/Documents/A1.csv")
  
  colnames(A1)= c("text")
  
  A1&lt;-A1%&gt;%unnest_tokens(word, text)
  </code></pre>
  
  <p>The error I am getting now says this:</p>
  
  <blockquote>
    <p>Error in check_input(x) :    Input must be a character vector of any
    length or a list of character   vectors, each of which has a length of
    1.</p>
  </blockquote>
  
  <p>My data didn't change, the code I'm using didn't change. :( I don't really understand why this is happening and am fairly new to R... Is there another package I need to load that maybe I had loaded before and didn't realize it?  </p>
  
  <p>Here is a link to my data:
  <a href="https://www.dropbox.com/s/amg12jp9qx98slz/A1.csv?dl=0" rel="nofollow noreferrer">https://www.dropbox.com/s/amg12jp9qx98slz/A1.csv?dl=0</a></p>
  
  <p>Thanks for your help</p>