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Home/ Questions/Q 6248801
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Editorial Team
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Editorial Team
Asked: May 24, 20262026-05-24T13:07:32+00:00 2026-05-24T13:07:32+00:00

Set up: New MVC 3 project, using existing database. Created an EF file (edmx),

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Set up:

New MVC 3 project, using existing database. Created an EF file (edmx), used the automatic generator to create the POCO classes and DbContext, then deleted the edmx.

Scaffolded a number of controllers and views, using -Repository -Force -Area -ModelType flags from the Package Manager Console command line.

Problem:

When running the app I get the following error:

External Component has thrown an exception.

Right. Fat lot of use. Stopped and started Cassini. No joy. Closed and opened VS2010. No joy.

Can’t think what else can be wrong. No one else seems to have the problem (according to Google).

Question:

What the heck is wrong?! Any suggestions?

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1 Answer

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  1. Editorial Team
    Editorial Team
    2026-05-24T13:07:33+00:00Added an answer on May 24, 2026 at 1:07 pm

    OK, I restarted the computah and the problem went away.

    Just like that.

    As if by magic.

    First thing I should’ve tried, isn’t it?

        |||||||||||
           0   0
             |
        vvvvvvvvvvv
        ___________
        ^^^^^^^^U^^
    
    (Self portrait of the Web Developer as an aging man)
    

    Three hours of my life. Vaporised. No page, no pay. No pay, no dinner. No dinner, no web developer. No web developer, no page. The circle of life and death. Ying and Yang. The Tao.

    Should’ve carried on doing Mathematical Physics. At least no one is to blame when the Universe doesn’t do what the client expects.

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