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Title
Error System.InvalidCastException: Unable to cast object of type 'System.String' to type 'System.Byte[]'. -
Description
Migration Agent for Exchange (MAgE) shows the following error in the log file:Error System.InvalidCastException: Unable to cast object of type 'System.String' to type 'System.Byte[]'.at Quest.MigrationManager.Exchange.MigrationConnectors.FTStream.<>c__DisplayClass10_0.<Property>b__0(PropertyType scalarPtyp, Object value)at Quest.MigrationManager.Exchange.MigrationConnectors.FTStream.Property(MAPIProperty prop)at Quest.MigrationManager.Exchange.MigrationConnectors.MAPI.MAPIMessageConstructor.PushRecipients(Object[] tags, Object[] props)at Quest.MigrationManager.Exchange.MigrationConnectors.MAPI.MAPIMessageConstructor.PushToStream(IMapiMessage message, MessageType messageType, HashSet`1 excludeTags, List`1& usedTags)at Quest.MigrationManager.Exchange.MigrationConnectors.MAPI.MAPIMessageConstructor.PushToStream(IMapiMessage message, MessageType messageType)at Quest.MigrationManager.Exchange.MigrationConnectors.MAPI.MapiSyncConnector.MakeStreamedItem(IItemInfo item, IMapiMessage msg)at Quest.MigrationManager.Exchange.MigrationConnectors.MAPI.MapiSyncConnector.GetItem(String folderId, IItemInfo item, Action`2 onSkip, Action`2 onFail)All messages for which the error above is logged will be marked as failed and increase the Failed Items counter in Migration Manager Statistics pane. -
Cause
MAgE shows this error while reading message canonical property PidTagUserX509Certificate. which has a PR_MV_BINARY type. This property is used by applications that utilize public-key security.
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Resolution
STATUS
This issue has been registered as PT131298645 and is fixed in MMEX 8.13 Public Update 20161017EX.
WORKAROUND1) Install Public Update 20161017EX for MMEX 8.13 or the latest cumulative 8.13 update that can be downloaded from https://support.quest.com/kb/77417
2) Switch on the SmartResync feature for MMEX project, as follows:
a) Open a 32bit PowerShell on the MMEX console machine.
b) Paste the following into the PowerShell Window:
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe -NoExit -Command "& {Import-Module 'C:\Program Files (x86)\Quest Software\Migration Manager\Exchange Data\Tools\DMMExPowerShell\DMMExPowerShell' }"
Note: If MMEX is installed on the non-default path, say, D:\ drive, the path to the module should be modofied appropriately.
c) Use the following command to enable SmartResync:
Set-DMMExProjectOptions –UseSmartResync $true
d) Add problem mailboxes to mailbox collection that does not have a ClearAllSyncDataOnResync parameter switched on (ClearAllSyncDataOnResync is set to FALSE). To check this, please run:
Get-DMMEXCollection –Name [MailCollectionName] –Type Mail –ClearAllSyncDataOnResync
If you get –ClearAllSyncDataOnResync $true as a result, please run:
Set-DMMEXCollection –Name [MailCollectionName] –Type Mail –ClearAllSyncDataOnResync $false
e) Right-click problem mailbox(es) in the Statistics pane and select Resynchronize command from the shortcut menu.
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Defect ID
PT131298645