need to get the last record of a table

I have a client table where i assign client numbers.  I would like to go to the last record and add one to the client numbers.  
This is my code.

 Set db = CurrentDb
        Set rs = db.OpenRecordset("SELECT RIGACCT FROM ClientInfo")
        'rs.Move -1
        'Debug.Print rs("rigacct")
        BacctNum = rs!RIGAcct
        AcctNum = BacctNum + 1
        Me.RIGAcct = AcctNum

It stopped working for me. it gets stuck on the Set rs.  The error message that i get is in valid type.

Any help would be appreciated
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Fabrice LambertConsultingCommented:

It looks like you are facing an ambiguity syndrom:
you think variables are on a given type where in fact it is on another.
This can be due to the use of multiple libraries (references) that define different data types with the same name.
Recordset type in ADO library VS Recordset type in DAO library. Same name but different type.

The solution is to fully qualify your data types:
Dim db As DAO.Database
Dim rs As DAO.Recordset
'// ...ect and so on

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VGuerra67Author Commented:
thank you
Remya 6488Senior ProgrammerCommented:

I think instead of iteratiing the resultset till the end, you can use a simple  query like
   where, Id is the unique auto generating column of the table
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