Community Tip - Did you get called away in the middle of writing a post? Don't worry you can find your unfinished post later in the Drafts section of your profile page.
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Hi Amar, ProE shows this message when your toolki application is running without a ProE session loaded or if pro_comm_message.exe process is not loaded. Usually it happens when your toolkit app is not working right and does some wrong action to ProE that causes it to fail.