Membership Error

 Hello,

I got the full script to create the ASP.NET Membership tables.
When I run the scripts on my table I get the following:

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Starting execution of InstallCommon.SQL
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(310 row(s) affected)
Cannot grant, deny, or revoke permissions to sa, dbo, entity owner, information_schema, sys, or yourself.
Cannot grant, deny, or revoke permissions to sa, dbo, entity owner, information_schema, sys, or yourself.

(1 row(s) affected)

(1 row(s) affected)
Cannot grant, deny, or revoke permissions to sa, dbo, entity owner, information_schema, sys, or yourself.
Cannot grant, deny, or revoke permissions to sa, dbo, entity owner, information_schema, sys, or yourself.
Cannot grant, deny, or revoke permissions to sa, dbo, ent ...