The value is not a valid connection string or an absolute path
Keyword not supported: 'provider'

thise message apper when i try to publish my web application can any one help me

not a valid connection string

The connection string you are using is invalid (as stated). It should look something like this:

<add name="XXX" connectionString="Data Source=XXX;Initial Catalog=XXX;integrated security=False;Password=XXX;Persist Security Info=True;User ID=XXX" providerName="System.Data.SqlClient" />
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