title: OpenModelica IBPSA example error spatialDistribution
body: <p>I'm quite new to Modelica and I'm trying to understand some basic examples. I'm looking at the example IBPSA.Fluid.FixedResistances.Examples.PlugFlowPipe and checking this model gives me the following error</p>
  
  <pre><code>Number of classes to check: 2 
  Checking: model IBPSA.Fluid.FixedResistances.Examples.PlugFlowPipe... 0.2350000000001273 seconds -&gt; FAILED! 
  
  Error String: 
  
  Error Buffer: 
  Warning: Requested package Modelica of version 3.2.2, but this package was already loaded with version 3.2.3. You might experience problems if these versions are incompatible. 
  [C:/Program Files/OpenModelica1.14.0-64bit/lib/omlibrary/IBPSA 3.0.0/Fluid/FixedResistances/BaseClasses/PlugFlowTransportDelay.mo:49:3-55:44:writable] Error: Function argument initialValues={time + pip.cor.timDel.t_in_start, time + pip.cor.timDel.t_out_start} in call to spatialDistribution has variability continuous which is not a parameter expression. 
  
  #[-], 0.2350000000001273, IBPSA.Fluid.FixedResistances.Examples.PlugFlowPipe 
  ------------------------------------------------------------------------- 
  Checking skipped: package IBPSA.Fluid.FixedResistances.Examples.PlugFlowPipe.Medium...  
  
  
  [2] 11:48:12 Scripting Notification
  Number of classes checked / failed: 2/1
  </code></pre>
  
  <p>It seems that the module <code>pip.cor.timDel</code> uses the function <code>spatialDistributuon</code>. My guess is that there is something wrong with <code>pip.cor.timDel.t_in_start</code> or <code>pip.cor.timDel.t_out_start</code>? It would be greatly appreciated if someone could help me with this.</p>
  
  <p>P.S. I'm using OMEdit v1.14.0 on windows 10 with Modelica library v3.2.3</p>