vCenter upgrade prechecks from SDDC Manager failing on vCenter - upgrade bundle validation

Products

• VMware SDDC Manager / VCF Installer
• VMware vCenter Server

Issue/Introduction

• vCenter Upgrade prechecks reports the following error: 
  

  Bundle validation for bundle of type VCENTER with upgrade version <vCenter_build>> failed due to error Bundle level precheck for VCENTER failed with exception : ConstraintViolationException: Structure com.vmware.appliance.task_info has a union constant with tag 'status' of value 'RESUMABLE', for which the field 'end_time' is not allowed to be set.

• LCM logs shows the following:
  • SDDC - /var/log/vmware/vcf/lcm/lcm-debug.log
    

    yyyy-mm-ddThh:mm:ss.zzz+0000 ERROR [vcf_lcm,0000000000000000,0000,precheckId=<precheck_Id>,resourceType=BUNDLE,resourceId=<resource_Id>] 
    [c.v.v.vapi.vsphere.VcenterVapiHelper,Precheck-2] Exception occurred during VC vAPI invocation
    java.util.concurrent.ExecutionException: com.vmware.vapi.client.exception.BindingsException: Could not convert field 'task' of structure 'com.vmware.appliance.update.info'
    ..
    Caused by: com.vmware.vapi.data.ConstraintValidationException: Structure com.vmware.appliance.task_info has a union constraint with tag 'status' of value 'RESUMABLE', for which the field 'end_time' is not allowed to be set.
    ..
    yyyy-mm-ddThh:mm:ss.zzz+0000 DEBUG [vcf_lcm,0000000000000000,0000,precheckId=<precheck_Id>,resourceType=BUNDLE,resourceId=<resource_Id>] 
    [c.v.e.s.l.p.i.v.VCenterPatchUpgradeImpl,Precheck-2] Error message during bundle precheck Bundle level precheck for VCENTER failed with exception : 
    ConstraintValidationException: Structure com.vmware.appliance.task_info has a union constraint with tag 'status' of value 'RESUMABLE', for which the field 'end_time' is not allowed to be set.

Environment

• VMware SDDC Manager 5.x
• VMware vCenter Server 8.x

Resolution

Workaround:

1. Log in to the vSphere Client
   
   
2. From the menu, select Developer Center.
   
   
   
3. Select in the API explorer tab the appliance API
   
   
   
4. Look for "POST api/appliance/update?action=cancel" under "update"
   
   
   
5. Execute the POST api/appliance/update?action=cancel (press the EXECUTE button and CONTINUE)
   
   
   
6. Retry the Bundle validation Precheck.