Has anyone come across with a solution to the error attached? It is about a 50-50 chance that an Import LandXML from a Civil 3d 2008 pipe network into the Hydraflow Storm Sewer 2008 extension works. There is nothing particularly special about the pipe networks. Just left them simple, all the same structures and same size pipes when creating the network then exporting the LandXML file out of Civil 3d. Some of the networks will import, some will simply error out. Has anyone else had this happen?
You're right. It appears you can put your network together any direction you want, the pipes just have to all go the same direction (one outlet). No toggling the upstream button if you've already drawn everything downstream. Thanks!