ShinyDashboard - Error after stopping shinyApps
<p>I'm building up a shinyDashboard.
Untill yesterday there wasn't any problem, but today every time I stop the app (that works perfectly) this message appears:</p>

<pre><code>Called from: Sys.sleep(0.001)
</code></pre>

<p>I run the app by clicking on the "Run App" button in RStudio, (<a href="http://i.stack.imgur.com/PniHP.png" rel="nofollow">here's a picture</a>) and the error message appears even if I change the "Run" options ("Run in window", "Run in external",...).</p>

<p>The most wierd thing is that sometimes this message doesn't appear, but it's shown ONE of these, even if don't change anything in my code:</p>

<pre><code>Called from: ifelse(interactive(), 100, 1000)

Called from: takeElapsed()

Called from: as.numeric(Sys.time())

Called from: match(x, table, nomatch = 0L)
</code></pre>

<p>Can any one tell me what these messages are due to? I don't have any idea about it and I haven't found anything on the web.</p>

<p>I'm running on Windows 7 Enterprise (Service Pack 1):</p>

<ul>
<li>R version 3.2.2 (2015-08-14) -- "Fire Safety"</li>
<li>RStudio Version 0.99.891.</li>
</ul>