[OFBiz] Users - "quanityNotReserved" Service Validation Exception

[Ruth Hoffman]

Hello All:

Does any one know how to resolve the following checkout error in the 
ecommerce app?

..ofbiz.log.... stuff removed.....

795656[  ServiceDispatcher.java:444:DEBUG] [[Sync service finished- 
total:0.249,since last(Begin):0.249]] - 'entity-default / 
checkCreateOrderRequirement'
796300[       ModelService.java:397:ERROR] [ModelService.validate] : 
{reserveStoreInventory} : (OUT) Required test error: 
org.ofbiz.service.ServiceValidationException: The following required 
parameter is missing: quantityNotReserved
796309[  ServiceDispatcher.java:365:ERROR]
---- exception report 
----------------------------------------------------------
Outgoing result (in runSync : reserveStoreInventory) does not match 
expected requirements
Exception: org.ofbiz.service.ServiceValidationException
Message: The following required parameter is missing: 
quantityNotReserved
---- stack trace 
---------------------------------------------------------------
org.ofbiz.service.ServiceValidationException: The following required 
parameter is missing: quantityNotReserved
org.ofbiz.service.ModelService.validate(ModelService.java:435)
org.ofbiz.service.ModelService.validate(ModelService.java:394)
org.ofbiz.service.ServiceDispatcher.runSync(ServiceDispatcher.java:363)
org.ofbiz.service.ServiceDispatcher.runSync(ServiceDispatcher.java:212)

.... stuff removed....

I'm using revision 4910.

TIA
Ruth