problem to run my project in windows phone 7.1 update

I was trying some code for push notification(which has sender windows phone client and wcf service) in windows phone 7.0.

I开发者_StackOverflow中文版 then install windows phone 7.1 beta update

and run the same code

but i m getting

"Connection failed because of invalid command-line arguments." error.

I want to know how to solve this issue......

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It seems like you have either have a misconfigured project or a failed installation of the updated SDK.

Your first choice would be creating a new WP7 application that targets 7.0 systems (if still needed). See if you can launch it through the emulator (which I am assuming is the issue). Try reloading the same project again.

In the most extreme case, remove everything WP7 dev-related and re-install the dev tools.