log
[User Action]
Check the log file ADPrep.log in the C:\Windows\debug\adprep\logs\20181212132408 directory for more information.
[2018/12/12:13:24:10.950]
Adprep encountered an LDAP error.
Error code: 0x20. Server extended error code: 0x208d, Server error message: 0000208D: NameErr: DSID-031001E4, problem 2001 (NO_OBJECT), data 0, best match of:
'CN=Schema,CN=Configuration,DC=xxx,DC=com'
DSID Info:
DSID: 0x180f088a
ldap error = 0x20
NT BUILD: 9200
NT BUILD: 16384
[2018/12/12:13:24:10.966]
Adprep was unable to update forest information.
[Status/Consequence]
Adprep requires access to existing forest-wide information from the schema master in order to complete this operation.
[User Action]
Check the log file, ADPrep.log, in the C:\Windows\debug\adprep\logs\20181212132408 directory for more information.