Can not open Sketch

Using Arduino IDE 1.x
1

Hi,

I have been trying to open sketch for last 5 days. I have been getting same error when I try to open new sketch or which I have already made before. I have already reinstall Arduino 3 times.

I am using Windows 8 OS.Please Help me with this.

Regards,
Meet

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2

Did you re-install Processing as the error box recommends? (See: Processing.org)

Is your sketch named with the old .pde (Processing) extension or the new .ino (Arduino) extension?