CODEWITHSUNDEEP
c#wpfprismmefinvalidoperationexception
Ch4BRN
Ch4BRN

Reputation: 43

ActivationException when I try to use RequestNavigate

SI have a problem in a small application. It's only switching from a view to another, but it gives me this although it's very simple:

Exception thrown: 'Microsoft.Practices.ServiceLocation.ActivationException' in Prism.Mef.Wpf.dll
Exception thrown: 'Microsoft.Practices.ServiceLocation.ActivationException' in Microsoft.Practices.ServiceLocation.dll
Exception thrown: 'System.InvalidOperationException' in Prism.Wpf.dll

I (only) use

this.RegionManager.RequestNavigate(RegionNames.MainRegion, "testChangeView.Views.uC"); to navigate, and the RegionManager is instantiated in somewhere else which I can't access (but at least I'm sure that it's not the problem).

What can be the cause? It was working fine yesterday. Thanks!

Upvotes: 0

Views: 186

Answers (1)

Ch4BRN
Ch4BRN

Reputation: 43

It's solved.

My application is separated in two modules, and one of them was using "Microsoft.Prism." instead of just "Prism.".

Upvotes: 0

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