WFA 3.1RC1 throws "Object reference not set to an instance of an object", worked in 3.0P1

Question

I am running a custom workflow to create volumes that has worked since WFA 2.x, and which works well in 3.0P1. With WFA 3.1RC1 it throws this error when attempting to apply a quota to the volume:   INFO  [Apply Quota Policy to Volume or Qtree] Started Quota resize on volume post_wfa31rc1_test2_w_mirror on vserver MySVM   ERROR [Apply Quota Policy to Volume or Qtree] Command failed for Workflow 'Create Volume (Schwab)' with error : Object reference not set to an instance of an object.  INFO  [Apply Quota Policy to Volume or Qtree] ***** Workflow Execution Failed ***** I have executed the PS commands from this code block in a PS shell with no errors. Has anyone else seen a similar issue with 3.1RC1?     Scott Lindley

Answer 1

I have narrowed the problem down to a single command and can reproduce the problem very easily. However, I can't seem to fix it. But I believe importing this single custom command into both a WFA 3.0P1 and WFA 3.1RC1 system will easily show that it works in 3.0P1 and throws the odd 'Object reference not set to an insance of an object' error. I say that is an odd error because I'm only used to seeing that error at Preview time referring to an object reference in a Command Parameter field of a workflow. I know how to deal with that issue. However here, the error appears at the end a PowerShell command. Actually, the PowerShell command appears to me to execute entirely and correctly. It is just that at the end of running this exception error is thrown and that causes the command (and workflow if running within a workflow) to fail. But the comamnd correctly adds the 'default' quota policy to the volume and even enables quota resize as it should. So it works, but still blows up the workflow it is within. I'm going to attempt to attach these three things here:    1) screenshot showing the command running (with Command Test Button) fine under WFA-3.0P1,    2) a screenshot showing the command running but throwing the error on a WFA-3.1RC1 system    3) the ,dar file holding just the command: "Apply Quota Policy to Volume or Qtree" (I added .txt to the end of .dar file name) ------1) running OKay on 3.0P1  -------------------------- 2) running with the ERROR on WFA 3.1RC1  SOME NOTES: My lab environment where I re-created the problem:    The WFA 3.0P1 system is a Windows 2008R2 server that happens to have the original PowerShell 2.0 on it    The WFA 3.1RC1 system is a Windows 7 system that I have updated PowerShell to 4.0. The customer environment:    I'm less certain of details (maybe Scott can fill in)    The version of PowerShell is TBD (guessing 2.0) , but they are running the same PS version for both 3.0P1 and 3.1RC1 because they are upgrading/downgrading WFA on the same system