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Error 2103 “Unhandled Error in Silverlight Application

, 29 May 2012 CPOL 34K 2
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Unhandled error in Silverlight application-Error 2103.

Introduction

If you getting given bellow image error in silverlight then try this...

Line: 54 
Error: Unhandled Error in Silverlight Application 
Code: 2103 
Category: InitializeError 
Message: Invalid or malformed application: Check manifest

This error “usually happens when you changed the namespace of your app [and] then did not change the Startup Object in the project property.” I did just do a big refactoring and renamed a lot of stuff – including renaming the Silverlight project – so I figured that this was the problem. Unfortunately, I didn’t immediately know what he meant.

The answer, open the Solution (sln) that has your Silverlight 4 project. Go to the Silverlight project (not the *.Web project), right-click the project and choose Properties. When the Project Properties page comes up, click the Silverlight tab and you should see the screen below.

When I went to the Silverlight tab for my project, I found that the Startup object was indeed set to the old name and namespace for App.xaml.

Now, open the Startup object dropdown. The old value isn’t even available in the list anymore. Choose the right value from the Startup object dropdown list, Save the project, and now your Silverlight application should run.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Savalia Manoj M
Software Developer (Senior)
India India
No Biography provided

Comments and Discussions

 
QuestionError 2103 “Unhandled Error in Silverlight Application Pin
Bikram Panjikar20-Nov-13 5:49
memberBikram Panjikar20-Nov-13 5:49 
QuestionMy Vote Of 5 Pin
Alexey Chepelev15-Oct-13 2:29
memberAlexey Chepelev15-Oct-13 2:29 
AnswerRe: My Vote Of 5 Pin
Savalia Manoj M25-Mar-15 0:11
memberSavalia Manoj M25-Mar-15 0:11 
GeneralMy vote of 4 Pin
jophyjob5-Feb-13 3:41
memberjophyjob5-Feb-13 3:41 

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