What to do when my dnn site has this error: 『parser error message: the entry 'localsqlserver' has already been added.』?
Since the name "localsqlserver" is already defined in "machine.config' at the server level by default. "web.config" needs to remove this name first by adding the tag < remove name="LocalSqlServer" / > before the same name is redinfed in the web.config file.
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