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