A project with an Output type of Class Library cannot be started directly

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情深已故
情深已故 2020-12-05 13:37

I\'ve download sample code with C#. but when I run I get this error message:

A project with an Output type of Class Library cannot be started direct

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  •  广开言路
    2020-12-05 13:58

    The currently selected startup project is a Class Library.

    You need an entry point for your application. Does your solution contain multiple projects?

    Are you sure you want to 'run' the Class Library?

    enter image description here

    Possibly you've downloaded a Class Library solution only. In that case there might be unit tests that you can 'debug' to step-trough the code.

    Update In response to your comment, these are possibilities to run the class library:

    • Create a console application and reference the class library. Then 'use' its contents
    • Debug an unit-test project
    • start existing client project

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