problem impossible to identify the plan

[enriazzo99]

hello to all, today I presented myself a problem that I wanted to solve quickly if possible (I ask you this). I designed a frame with various tubulars and on it I had made various holes. now changing the type of tubular the holes have lost reference to the face, presenting an error "impossible to identify the plane or face". Is there a possibility to return this reference without having to remake all the holes?
Thank you in advance.

 

[MassiVonWeizen]

should be:
right button on the sketch
change plan

with a banal search on google:

http://https: / / help.solidworks.c...l% 20pulsante, fare% 20click% 20su% 20ok% 20.