whats wrong with this command, I get item not found exception. not sure what object is missing/need to ne removed.

Set-CMTaskSequenceDeployment -AllowUseRemoteDistributionPoint $true -TaskSequenceName ‘Test’ -CollectionName “OSD_WS12DCR2_SF_REF_IMG” -MakeAvailableTo ClientsMediaAndPxe -SendWakeUpPacket $False -UseMeteredNetwork $False -AllowUsersRunIndependently $False -RerunBehavior AlwaysRerunProgram -ShowTaskSequenceProgress $True -SoftwareInstallation $True -SystemRestart $True -DeploymentOption DownloadContentLocallyWhenNeededByRunningTaskSequence -ScheduleEvent AsSoonAsPossible

@Prakash start by just specifying the required parameters and then add in the other options. You can use get-help or msdn

Mandatory Fields

TaskSequenceName	TRUE
TaskSequencePackageId	TRUE
TaskSequenceDeploymentId	TRUE
InputObject	TRUE
CollectionName	True True False
Comment	FALSE
SendWakeupPacket	FALSE
UseMeteredNetwork	FALSE
MakeAvailableTo	FALSE
DeploymentAvailableDay	FALSE
DeploymentAvailableTime	FALSE
DeploymentAvailableDateTime	FALSE
UseUtcForAvailableSchedule	FALSE
DeploymentExpireDay	FALSE
DeploymentExpireTime	FALSE
DeploymentExpireDateTime	FALSE
UseUtcForExpireSchedule	FALSE
ScheduleEvent	FALSE
Schedule	FALSE
RerunBehavior	FALSE
AllowUsersRunIndependently	FALSE
ShowTaskSequenceProgress	FALSE
SoftwareInstallation	FALSE
SystemRestart	FALSE
PersistOnWriteFilterDevice	FALSE
InternetOption	FALSE
DeploymentOption	FALSE
AllowSharedContent	FALSE
AllowFallback	FALSE
CreateAlertOnSuccess	FALSE
PercentSuccess	FALSE
AlertDay	FALSE
AlertTime	FALSE
AlertDateTime	FALSE
CreateAlertOnFailure	FALSE
PercentFailure	FALSE
PassThru	FALSE
DisableWildcardHandling	FALSE
ForceWildcardHandling	FALSE
Verbose	FALSE
ErrorAction	FALSE
WarningAction	FALSE
ErrorVariable	FALSE
WarningVariable	FALSE
OutVariable	FALSE
OutBuffer	FALSE
PipelineVariable	FALSE
Confirm	FALSE

But MSDN example don’t have TaskSequenceDeploymentId, so trying to get exact error detail.