O365 migration -find delegates error

[RAMALDON]

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Issue Details

When running the find-mailboxdelegates.ps1 script in our EX2010SP3 rollup 21 environment with powershell 3.0 or higher. we get an error as indicated below. the script does not complete and logs error as shown below.

​2/1/2019 12:14 PM : User: d765571_ad Computer: NC3N ScriptVersion: 06262018 PowershellVersion: 5
2/1/2019 12:14 PM : Script parameters passed: [BatchUsers, True]
2/1/2019 12:14 PM : Pre-flight Check
2/1/2019 12:14 PM : ExchangeServerName: NC3N ExchangeServerVersion: Version 14.3 (Build 123.4)
2/1/2019 12:14 PM : Pre-flight Completed
2/1/2019 12:14 PM : STEP 2 of 3: Analyze Delegates...
2/1/2019 12:14 PM : Run function: Create-Batches
2/1/2019 12:14 PM : Build ArrayList for users with no dependents
2/1/2019 12:14 PM : Identify users with no permissions on them, nor them have perms on another
2/1/2019 12:14 PM : Remove users with no dependents from hash
2/1/2019 12:14 PM : Clean out hashData of users in hash with no delegates
2/1/2019 12:14 PM : Run function: Find-Links
2/1/2019 12:14 PM : Error: The term '-percentComplete' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
2/1/2019 12:14 PM : Error: Exception calling "Add" with "2" argument(s): "Item has already been added. Key in dictionary: 'user@contoso.com' Key being added: 'user@contoso.coml'"
2/1/2019 12:14 PM : Error: Exception calling "Add" with "2" argument(s): "Item has already been added. Key in dictionary: ''user@contoso.com' Key being added: ''user@contoso.com'"

Suggested Sample, Script, or Tool

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Question / Feedback

We would like some feedback that may indicated why we are getting this error.

also,the account we are using has domain admin and full mailbox rights.

Find-MailboxDelegates.ps1.txt