'SqlServerCe' does not exist ?

I'm developing a application on Pocket PC with Visual Studio 2005

I use the reference
using System.Data.SqlServerCe;

to use sql server on the Pocket PC OS and I receive the error
The type or namespace name 'SqlServerCe' does not exist in the namespace 'System.Data' (are you missing an assembly reference?)

how can 'SqlServerCe' does not exist in the namespace 'System.Data' ?
anybody can help me?
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The clue is in the error message...    "Are you missing an assembly reference"?

... the answer to that question is probably "yes" !

You need to add a reference to your project...   From the Solution Explorer (typically in the upper right-hand corner of the IDE),  click "My Project",  on the list of vertical tabs, click on "References", click the Add button and drill down the list to find "Microsoft SQL Mobile".

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huy302Author Commented:
oh my, very simple

thanks alot ;)
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