Connection problem with login control

[John]

Hi

When I use the login control to login I get the following error;

Parser Error Message: The connection name 'SqlServices' was not found in the
applications configuration or the connection string is empty.

Source Error: (in file web.config)

Line 44: name="AspNetSqlProvider"
type="System.Web.Security.SqlMembershipProvider" />

My web config file is given below. What is the problem and how can I fix it?

Thanks

Regards
<?xml version="1.0"?>
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
<appSettings/>
<connectionStrings/>
<system.web>
<compilation debug="true" strict="false" explicit="true"/>
<pages>
<namespaces>
<clear/>
<add namespace="System"/>
<add namespace="System.Collections"/>
<add namespace="System.Collections.Specialized"/>
<add namespace="System.Configuration"/>
<add namespace="System.Text"/>
<add namespace="System.Text.RegularExpressions"/>
<add namespace="System.Web"/>
<add namespace="System.Web.Caching"/>
<add namespace="System.Web.SessionState"/>
<add namespace="System.Web.Security"/>
<add namespace="System.Web.Profile"/>
<add namespace="System.Web.UI"/>
<add namespace="System.Web.UI.WebControls"/>
<add namespace="System.Web.UI.WebControls.WebParts"/>
<add namespace="System.Web.UI.HtmlControls"/>
</namespaces>
</pages>
<authentication mode="Forms">
<forms name="StaffLoginAuthCookie" loginUrl="Login.aspx">
<credentials passwordFormat="Clear">
<user name="john" password="password" />
<user name="mike" password="test" />
</credentials>
</forms>
</authentication>
<authorization>
<deny users="?" />
</authorization>
<membership>
<providers>
<add connectionStringName="SqlServices"
requiresQuestionAndAnswer="false"
minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0"
name="AspNetSqlProvider"
type="System.Web.Security.SqlMembershipProvider" />
</providers>
</membership>
</system.web>
</configuration>