cannot open Runner.xcworkspace

I cannot open the Runner.xcworkspace on xcode even though i have tried everything

(all ran with cleaned and not cleaned derived data) -i am running xcode on the latest version -tried deleting/installing again/updating pods more than enough times -tried opening from terminal/xcode/finder (all end up either opening Runner.xcodeproj or not opening at all)

what are other options left to do ?

cannot open Runner.xcworkspace
 
 
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