title: Cannot implicity convert type <string> to String[]
body: <p>I was trying to build a twitter bot for the Windows IOT Core.<br>
  I want to get the tweets from a file called tweets.csv.<br>
  The first step is to get a random line from the file.
  This is what I tried:  </p>
  
  <pre><code>         private String TweetString(int Size = 140)
       {
           string[] lines = File.ReadLines(@"C:\Path\tweets.csv"); //Error here
           System.Text.StringBuilder builder = new System.Text.StringBuilder();
           var r = new Random();
           int randomLine = r.Next(0, lines.Length);
           string line = lines.Skip(randomLine - 1).Take(1).First();
           return builder.ToString();
       }
  </code></pre>
  
  <p>Unfortunately I get this error:</p>
  
  <blockquote>
    <p>Cannot implicitly convert type 'System.Collections.Generic.IEnumerable' to 'string[]'. An explicit conversion exists (are you missing a cast?)</p>
  </blockquote>
  
  <p>Does anyone know how to fix this?</p>
  
  <p>(Sorry, English is not my native language!)</p>