How to resolve problem "The ID ___ is already in use by another control" error?

I have an issue where I am trying to deploy a .aspx page to sharepoint.  I am getting this error.  Does anyone have any idea what could be causing this?

Thanks in advance
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darjimaulikConnect With a Mentor Commented:
You will get such error when there are 2 different control with same ID.

Try to find the id in your aspx page.

When you are adding the page in sharepoint check the webparts or user control are making the same ID?
Obadiah ChristopherCommented:
There has to be another control on the page that is using the same id.

Did u try and change the controlid in question?
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