CODEWITHSUNDEEP
windows-phone-7windows-phone
Ryan B
Ryan B

Reputation: 691

Can't deploy Windows Phone App - An attempt was made to load a program with an incorrect format

I'm trying to deploy my app to a device and i get the following error

Error   27  An attempt was made to load a program with an incorrect format.

the odd thing is that the file and project this error relates to are both blank.

It was a WP7 app but i tried converting it to WP8 app in hope of fixing it but that didn't help. Anyone got any ideas how to figure out what's wrong?

the only thing i could find for this error talks about a specific assembly being compiled for the wrong platform. but this is not an option in the Windows Phone project settings

Upvotes: 0

Views: 584

Answers (3)

Sandro Stadler
Sandro Stadler

Reputation: 698

Check the files in your project. Files that are not part of the project should be marked as "Buid Action = none" and "Copy to Output Directory = Do not copy". Some examples are file files "text". Try this, worked for me.

Upvotes: 1

Paras Wadehra
Paras Wadehra

Reputation: 478

Not sure if this is the case with you, or if you've already solved the issue (since it is an old thread), but this happens sometimes when you target the wrong CPU type. For example, your project targets x86 while you have a 64-bit machine.

Follow these steps to (hopefully) fix the issue:

  • Go to project properties
  • Go to Build tab
  • Select Any CPU from Platform dropdown
  • Save and recompile

Upvotes: 0

Dan Colasanti
Dan Colasanti

Reputation: 192

Did you get any conversion warnings when you converted the project? I've worked around problems like this in the past by creating a new Windows Phone solution, re-creating the same projects in the new solution, creating any needed sub-folders into those projects, and then copying over the code and content files. This is usually quick if there aren't a lot of projects & folders.

Upvotes: 0

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