ARSLOAD error when loading report from spool

Symptoms

When attempting to load a report from spool with the following JCL:
//ARSLOAD EXEC PGM=ARSLOAD,REGION=0M,
// PARM=('/-A JOBNAME -uadmin -ppassword -v -C F
//       -g "ClaseU" -f -c/u/u1/ctemp ')
//STEPLIB DD DISP=SHR,DSN=ARS.V710.SARSLOAD
//    DD  DISP=SHR,DSN=SYS1.DSN610M.SDSNEXIT
//    DD  DISP=SHR,DSN=DSN610M.SDSNLOAD
//    DD  DISP=SHR,DSN=APK.ACIF.ONDE.SAPKMOD1
//SYSPRINT DD SYSOUT=*
//SYSOUT DD SYSOUT=*

This ARSLOAD error occurs:

The application >< does not exist within the application group >ClaseU<

Causes

If you use the -g option to specify an application group, ARSLOAD is unable to determine the application or application group from the spool file. The -G and -A options are ignored. As a result, ARSLOAD tries to perform a load to application group ClaseU, with no application specified, and it fails.

Resolving the problem

Use "-G WRITER -W CLASEU -A JOBNAME, and have the jobs specify a writer name of CLASEU, for example:
PARM=('/-G WRITER -W CLASEU -A JOBNAME -v -f')
Important: This action requires that you define each job name as an application.
Note: This section applies to Content Manager OnDemand for z/OS® only.