Gotcha! opDeleteBodies on an unused sketch

blackslate

I'm just new here, making creative beginner's mistakes, so this is probably something you all already know, but it seems unintuitive to me.

You must sketch something in a sketch and then skSolve the sketch before you can use opDeleteBodies to delete it.

If you don't, you get a CANNOT_RESOLVE_ENTITIES error, which, for a beginner, doesn't explain too much.

Demo

NeilCooke

The sketch geometry doesn't exist until it is solved that's why you can't reference it. 

Jacob_Corder

before calling opDeleteBodies, i always check if the delete query is not empty if I don't know or if it is possible that their are not any bodies to delete .
if(isQueryEmpty(context, qCreatedBy(someId,EntityType.BODY))==false)
{
now delete it. 
}