Event Rich Snippet: location/address for Google Testing Tool - schema.org

Question

I'm trying to be friendly to Google Structured Data Testing tool. I try to give him an Event snippet: https://schema.org/Event
Problem is for PostalAddress: I put itemprop="location" for my PostalAddress, but then it considers that address is missing for PostalAddress.
I don't know what can I set in an adress item, as it is not even described in schema.org.
<div itemscope itemtype="http://schema.org/Event">
<h1 itemprop="name">PIÈCE DE THÉÂTRE : " L'AUBERGE DU CARAMEL " DE JEAN-LUC PECQUEUR</h1>
<ul>
<li class="avenir"><span itemprop="startDate" content="2015-04-10T20:30:00+02:00">10/04/15</span> 20h30</li>
<li class="avenir"><span itemprop="startDate" content="2015-04-11T20:30:00+02:00">11/04/15</span> 20h30</li>
<li class="avenir"><span itemprop="startDate" content="2015-04-12T15:00:00+02:00">12/04/15</span> 15h</li>
</ul>
<address>
<div itemprop="location" itemscope itemtype="http://schema.org/PostalAddress">
<span itemprop="name" class="raisoc">PIÈCE DE THÉÂTRE : " L'AUBERGE DU CARAMEL " DE JEAN-LUC PECQUEUR</span>
<br />
<span itemprop="streetAddress">route de Paris<br /></span>
<span itemprop="postalCode">03630</span> <span itemprop="addressLocality">DESERTINES</span>
<br />
</div>
</address>
</div>

Answer 1

Its not clear in the definitions above, but examples are explicit about the usage. Try doing it the below way. snippet tool comes out green.
<div itemscope itemtype="http://schema.org/Event">
<h1 itemprop="name">PIÈCE DE THÉÂTRE : " L'AUBERGE DU CARAMEL " DE JEAN-LUC PECQUEUR</h1>
<ul>
<li class="avenir"><span itemprop="startDate" content="2015-04-10T20:30:00+02:00">10/04/15</span> 20h30</li>
<li class="avenir"><span itemprop="startDate" content="2015-04-11T20:30:00+02:00">11/04/15</span> 20h30</li>
<li class="avenir"><span itemprop="startDate" content="2015-04-12T15:00:00+02:00">12/04/15</span> 15h</li>
</ul>
<address>
<div class="event-venue" itemprop="location" itemscope itemtype="http://schema.org/Place">
<span itemprop="name" class="raisoc">PIÈCE DE THÉÂTRE : " L'AUBERGE DU CARAMEL " DE JEAN-LUC PECQUEUR</span>
<br />
<div itemprop="address" itemscope itemtype="http://schema.org/PostalAddress">
<span itemprop="streetAddress">route de Paris<br /></span>
<span itemprop="postalCode">03630</span>
<span itemprop="addressLocality">DESERTINES</span>
</div>
<br />
</div>
</address>
</div>

Answer 2

This error does not make sense.
You are using the location property with a PostalAddress item as value, which is fine. It’s appropriate use of the Schema.org vocabulary, and it’s also recommended by Google’s Event Rich Snippet documentation.
Now, Google’s Testing Tool reports that Google requires the address property for this PostalAddress for showing their Event Rich Snippet. But neither is Schema.org’s address property defined for PostalAddress (there can’t be an address of an address), nor does Google list that the address property would be required.
It would make sense to use address if Place is used instead of PostalAddress, but it’s plain wrong for PostalAddress. Probably Google’s Testing Tool is bugged / confusing this.