when i want to use asp.net configuration for creat users
and roles i recived this message:
There is a problem with your selected data store. This can
be caused by an invalid server name or credentials, or by
insufficient permission. It can also be caused by the role
manager feature not being enabled. Click the button below
to be redirected to a page where you can choose a new data
store.

The following message may help in diagnosing the problem:
Unable to connect to SQL Server database.

when i clicked the choose data source button that give me
another message that is this:

Use this page to configure how Web site management data
such as membership is stored. You can use a single provider
for all the management data for your site or you can
specify a different provider for each feature.

Your application is currently configured to use the
provider: AspNetSqlProvider

Select a single provider for all site management data
Select a different provider for each feature (advanced)


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and this message was reapeted in other choose again.
please help me if u know why i gave that message so i wont
can creat my users and roles