[SalesForce] A flow trigger failed to execute the flow with version ID xxxxxxxxxxxxxxxxxx

The trick is to disable the deployment of the flows with build property. Let say you want to skip flows deployment normally and just deploy them if they don't exist. You have to do following steps:

1. Add following snippet to you src/package.xml

       <!--TO_REMOVED-->
       <types>
         <members>My_Flow-33</members> 
         <name>Flow </name>
       </types>
       <!--TO_DELETE-->

2. Use following ant code

    <target name="flowRequired">
        <condition property="includeFlow">
            <equals arg1="${deployFlow}" arg2="true"/>
        </condition>
    </target>

    <target name="deployFlow" unless="includeFlow"  depends="flowRequired">
        <replace file="src/package.xml">
            <replacefilter value="" token="TO_REMOVED--"/>
        </replace>        
        <replace file="src/package.xml">
            <replacefilter value="" token="!--TO_DELETE"/>
        </replace> 
    </target>

In this setting if you don't pass parameter deployFlow or set it to false to you ant script it will replace the values in a way that that section becomes a comment in your package.xml file.

You need to check if the procees builder is getting NULL values for any field on opportunity [ lookup or any other ]. Provide legitimate value; it will work...!

There is always a missing value in process builder which brings this exception.

Thanks...!