OLAP Connection error

Below code at web.config file, when i change Data Source to other pc name....an error occur 'The data provider didn't supply any further error information'...
let said change the datasource 'localhost' to 'webserver' error will occur...so i cannot run the program at my pc and link the olap database at server...

<add key="OLAPConnectionString" value="Provider=MSOLAP.2;Data Source=localhost;Initial Catalog=Foodmart 2000;" />The other PC that you are trying to connect should have the same users and user rights as the first one.

In addition to that, the Analysis Server on your second PC should know about these users as well.

I found that security with Analysis Server is very tight.

Good Luck