GEOPAK Error Message

Question

Hi, 
 I am working on a GEOPAK model and cant analyze the network as it keep showing this error message: 
 Errors Preclude Computations Error Computing Link Hydraulics for Link 3-1 required for Network Errors Preclude Computations Error Computing Link Hydraulics 
 Link 3-1 referred to in the error message is the first pipe at the upstream end of the network. I checked all the areas, nodes, links and all looks OK. please can you advise? I cant understand what is this about.

Beebe Ray · Answer

Looking at the network, each of your pipes are incorrect. They are referring to pipes in possibly another drainage library. Jacked Concrete pipe does not exist under your library for Circular Concrete. You just need to go through and reselect all the pipes that you want to use.https://communities.bentley.com/cfs-file/__key/communityserver-discussions-components-files/5922/Trials.gdf

Beebe Ray · Answer

There is only one solution, you have to go through and reselect your pipes on all of your networks. 
 You or someone else have changed to a different drainage library at some point and the pipe names in the library are different than the one used previously. (I can tell this because I have seen the evolution of the VDOT drainage library from it's first version to the one you have now) 
 In one example there was a 12" pipe in the old library and there is not a 12" pipe in the new library. Another example is there was 15 " Jacked Concrete Pipe in the old library and the new library calls in 15" Dia Concrete Pipe. So when you click Analyze you are asking the software to go into the drainage library and find Jacked Concrete Pipe and it is not available or you are asking the software to find 30" Concrete Pipe and it is not there because it is now 30" Dia Concrete Pipe. 
 I am including a link to a video of my process that determined this. At no time do I click the design option which will only look at what is in the current library and there by fix the issues you have created by starting in one library and switching to another where the category "Circular" "Concrete" totally changed from one to the other. 
 
 https://bentley.sharefile.com/d-s7e47513430049629 
 Here is the gdf file after changing all the pipes 
 https://communities.bentley.com/cfs-file/__key/communityserver-discussions-components-files/5922/0535.Trials.gdf