The following error message appears during the migration installation.
SDM Migration failed with exitCoce : 231
Please refer to log file at C:\Users\ADMINI~1\AppData\Local\Temp\2\casm\install.log and retry.

When this error occurs, the install.log may be updated like the below logs.
<Date> <Time> DEBUG [stderr( C:\PROGRA~2\CA\SERVIC~1\bin\pdm_perl.exe):Thread-125] [MigrateSDM] Cannot Continue Migration Process.
<Date> <Time> INFO [DeployThread: Migrating CA Service Desk Manager] [ActiveProcessHolder] Exit Monitor. Process ID (PID): 4776
<Date> <Time> INFO [DeployThread: Migrating CA Service Desk Manager] [ProcessUtilities] Process C:\PROGRA~2\CA\SERVIC~1\bin\pdm_perl.exe completed with exit code 231
2<Date> <Time> DEBUG [DeployThread: Migrating CA Service Desk Manager] [ProgressPage] ProgressPage - Task Changed Migrating CA Service Desk Manager
2<Date> <Time> DEBUG [DeployThread: Migrating CA Service Desk Manager] [ProgressPage] Task State Changed. TaskID: task.migrate_sdm,Migrating CA Service Desk Manager, Old State: running, New State:failed