Script to Prepare Exchange 2013 to migrate from Exchange 2007 is not working.

I`m getting prepared to migrate Public Folder from Exchange 2007 to Exchange 2013.
All mailboxes already done as requested.

Followinf some articles, I was running a script to list folders path and respective sizes:

.\Export-PublicFolderStatistics.ps1 <Folder to size map file path> <Source server>

However all paths are looking like follows:
"FolderName","FolderSize"
"\IPM_SUBTREE","36838293"
"\IPM_SUBTREE","125977"
"\IPM_SUBTREE","439315"
"\IPM_SUBTREE","3816"
"\IPM_SUBTREE","343237"
"\IPM_SUBTREE","0"
"\IPM_SUBTREE","6484384"
"\IPM_SUBTREE","18398"

No full path.

When running that scripts many folders are resulting:
You cannot call a method on a null-valued expression.
At X:\Program Files\Microsoft\Exchange Server\Scripts\Export-PublicFolderStatistics.ps1:193 char:88
+ $ipmSubtreeFolderList | %{ $script:IdToNameMap.Add($_.EntryId, $_.MapiIdentity.ToString <<<< ()) };
    + CategoryInfo          : InvalidOperation: (ToString:String) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

Then, I can`t go ahead with this migration?

Thanks
MHFMAsked:
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ferraristaCommented:
Try changing "$_.MapiIdentity" to "$_.Identity" in line 193 of the script.

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MHFMAuthor Commented:
Thanks for commenting. You're right! It works!
MHFMAuthor Commented:
Pretty good catch! Thanks!
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