Hi Dave,
One of the error messages I see in the log is
2015-03-19 14:46:31,494 ERROR [com.netapp.wfa.engine.exec.TabularWorkflowExecutionPlannerImpl] (http-executor-threads - 134) Failed to build execution plan for workflow 'Create and configure NAS Storage Virtual Machine': InvalidInputException{Message: The value hq_n01_sas for input $RootVolumeAggregate has to be within [hq-stor-01:hq_n01_sas], Cause: null}
I am still not fully sure if you have hit this since I dont know the user inputs you used when planning the workflow.
Now, the child workflow "Create and configure NAS SVM" takes root aggregate in the format "NodeName:AggregateName"
If you have been giving the input as "hq_n01_sas", please try again by giving the input as "hq-stor-01:hq_n01_sas" for $aggr.
When I tried the same on my local WFA setup, the error message came correctly i.e
Planning failed for the 'Create and configure NAS Storage Virtual Machine' child workflow.
Reason: The value aggr1_node1 for input $RootVolumeAggregate has to be within [ccr-cmode-02-01:aggr1_node1, ccr-cmode-02-02:aggr1_node2]
Location: 'Create and configure NAS Storage Virtual Machine' child workflow > 'Workflow' tab > 'NewSVM' variable
I am using a slightly different WFA version from what you have. So, I am yet to figure out why "null" error message is being thrown for you.
Thanks,
Shailaja