PTUPGCONVERT Fails at Group4 when Upgrading from 8.49 to 8.51 Tools Only

 I am getting the following error when performing a Tools only upgrade from 8.49 to 8.51 Financials.  I have upgraded from 8.48 to 8.51 HR without error.

Thanks,

Ron

 'PTUPGCONVERT' Group 4 started at 2011-06-24-12.00.11.000000. (226,33)

Attempting to retrieve target location for WSDL failed for GL_CHARTFIELD.1. (158,539)
 Message Set Number: 158
 Message Number: 539
 Message Reason: Attempting to retrieve target location for WSDL failed for GL_CHARTFIELD.1. (158,539)

Retrieval of WSDL failed for wsdl name: GL_CHARTFIELD.1. (2,887) UPGPTSERVOPR.WSDL.GBL.default.1900-01-01.Step01.OnExecute  PCPC:67  Statement:1
 Message Set Number: 2
 Message Number: 887
 Message Reason: Retrieval of WSDL failed for wsdl name: %1. (2,887)

Process 4644239 ABENDED at Step UPGPTSERVOPR.WSDL.Step01 (PeopleCode) -- RC = 8 (108,524)