When compiling an error will occur that a name space does not exist. An example error like the message below:
The type or namespace name 'Microsoft.Office.Interop.Outlook' does not exist in
the namespace 'Microsoft' (are you missing an assembly reference?)
The system is trying to find a reference for a specific namespace or dll.
One solution for this is to add the reference to the missing namespace.
Find the “solution explorer” window like the image below:
After opening the “solution explorer” window, right click the name of the project just below the solution explorer. Beside the C# icon.
A new window will open like the image below.
Click “Add”, then click “Reference”.
After clicking “Reference”, the “Reference Manager” window will open.
Click “COM” option, then use the filter option to go directly to the desired namespace or reference.
Since the error is a Microsoft namespace, type “Microsoft” and “Microsoft” namespace will be filtered from the list. See image below:
Select the desired namespace based on the compiled error. For example if the error was “Microsoft.Office.Interop.Outlook” then try adding Microsoft Office Library or Microsoft Outlook Reference object.
Visual Studio will auto detect if the desired namespace or reference has been added since the error won’t show up anymore.
Cheers!! Till next time. Happy Coding!!!
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