Closed sketch is not extruded in creo, dont know how to resolve this issue ?

I have attached a following sketch file. The sketch is closed, but it's not being extruded in Creo. Dont know what is the issue.

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2 Answers

I tried to extrude the sketch as surface and it works! but if you extrude the sketch as a solid part maybe there are too small elements.
Try to extrude it in the first way and then solidify it.

 
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SOLUTION:

Extruding but as a sheet
reason:too small sketch ,

not extruding:
reason: Overlapping sketch

 
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