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GeneralRe: Error: "No exports were found that match the constraint" Pin
Kevin Marois5-Feb-20 6:20
professionalKevin Marois5-Feb-20 6:20 
GeneralRe: Error: "No exports were found that match the constraint" Pin
Eddy Vluggen5-Feb-20 6:36
professionalEddy Vluggen5-Feb-20 6:36 
General[RESOLVED] Re: Error: "No exports were found that match the constraint" Pin
Kevin Marois5-Feb-20 6:54
professionalKevin Marois5-Feb-20 6:54 
GeneralRe: [RESOLVED] Re: Error: "No exports were found that match the constraint" Pin
Eddy Vluggen5-Feb-20 7:10
professionalEddy Vluggen5-Feb-20 7:10 
AnswerRe: Error: "No exports were found that match the constraint" Pin
Pete O'Hanlon3-Feb-20 21:24
subeditorPete O'Hanlon3-Feb-20 21:24 
GeneralRe: Error: "No exports were found that match the constraint" Pin
Kevin Marois5-Feb-20 6:09
professionalKevin Marois5-Feb-20 6:09 
GeneralRe: Error: "No exports were found that match the constraint" Pin
Pete O'Hanlon5-Feb-20 8:43
subeditorPete O'Hanlon5-Feb-20 8:43 
AnswerRe: Error: "No exports were found that match the constraint" Pin
Richard Deeming5-Feb-20 6:44
mveRichard Deeming5-Feb-20 6:44 
Try running a tool like Mefx against your project to see if it gives you any clues.
Composition Analysis Tool (Mefx) | Microsoft Docs[^]

You could also try disabling silent rejection, which might give you more details:
CompositionOptions Enum (System.ComponentModel.Composition.Hosting) | Microsoft Docs[^]

There's also a decent blog by Daniel Plaisted on debugging MEF issues:
How to Debug and Diagnose MEF Failures | Microsoft Docs[^]



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