title: r 3.4.1 source exprs
body: <p>I have following function as example:</p>
  
  <pre><code> myFunc &lt;- function(x){
    while(x &lt; 100){
    x &lt;- x+10
      cat( x )
      cat("\n")
    }
  }
  </code></pre>
  
  <p>In the new R version 3.4.1 on Windows I want to source this function from the file <strong>myFunc.R</strong> like as below:</p>
  
  <pre><code>filepath &lt;- "D:/"
  l &lt;- list.files(filepath, pattern = "my", full.names = TRUE)
  source(l)
  </code></pre>
  
  <p>But am getting the following Error:</p>
  
  <blockquote>
  <pre><code>source(l) Error in source(l) :    could not find symbol "exprs" in
  environment of the generic function
  </code></pre>
  </blockquote>
  
  <p>I hope anyone can help. Thanks a lot</p>