"external references are missing" without indications of which

CaptainBisquick

I drew two sketches on the top plane. As far as I can tell, they are independent of one another. But when I switch their order history, I get the "Some external references are missing" error, and I can't see why.

Sometimes I like to have more than one sketch in the same area so that I can avoid having my sketches get too crowded, while still being able to see the lines of one sketch while working in the other. The problem I have is when I begin editing the first sketch, I can't see the lines of the second sketch. That's why I switched their order history, but then received the inexplicable error.

stevehess

Hi @robert_christian , Open the Share dialog by clicking the blue button at the top right of the menu toolbar.   Then, the "Share with Onshape support" right at the bottom of the Share dialog.  If you filed a ticket someone will reply with a more detailed reply asking you to share with them.

andrew_troup

@robert_christian ;
If you turn on "show constraints" in the sketch which was created second, but which is now first: you will probably see one or more of them in red: these are constraints which will have been inadvertently created (by unperceived snapping when you created the sketch)
The switching of order is actually a good diagnostic technique to identify such unwanted constraints.
If you select these constraints by clicking on them with the mouse, you can "Delete" from the keyboard or RMB.

If there are no constraints in red, you have a rogue situation and should submit the model to Support for checking.

CaptainBisquick

Thanks @andrew_troup. In this particular case, there are no red constraints or red lines.

Narayan_K

@robert_christian ;;If you drawn two sketches in the same area then you may selected the face of first sketch to draw second sketch.
Please check whether you selected top plane or sketch face to create second sketch.... 

stevehess

Hi @robert_christian , @Narayan_K  makes a really good point.  It is possible to select another "sketch" as the basis for a new sketch. In that event, the second sketch will be dependant on the first. .  I'll bet your second plane was created on the sketch of the first.

CaptainBisquick

Hi @stevehess, @Narayan_K. This is a good guess, but unfortunately it's not that either. Both say "Top plane" in the sketch dialog.

I sent a support request to Onshape support.

stevehess

@robert_christian
Perhaps you should file a support ticket & share your doc with Support.  They can get to the bottom of it.

CaptainBisquick

Another thing I will add is this: some areas of the sketch have so many constraints that Onshape hides most of them under an ellipsis icon. It seems to have resulted from using symmetry a lot. None of those ellipses are red though, and none that I expand have revealed any red constraints.

@stevehess, ya, I did. I don't know where the 'share with OS support' feature is though.

stevehess

Hi @robert_christian , Open the Share dialog by clicking the blue button at the top right of the menu toolbar.   Then, the "Share with Onshape support" right at the bottom of the Share dialog.  If you filed a ticket someone will reply with a more detailed reply asking you to share with them.

philip_thomas

@CaptainBisquick - good point - if the 'condensed' constraints contain any that are bad, make the condensed icon red. Great enhancement request.
@Paul_Chastell