Good afternoon guys, I am having a problem have, could anyone knows the solution help. Thanks in advance:

I was trying to run a analysis, but the error message shown as follows:
CAESAR II was unable to find absolute coordinates for starting node points of one of more discontinuous piping (or structural) sections.

Possible solutions to this problems are:
-Deactivate branch and coordinate prompts (see options 5 of the KAUX menu in CaESAR II's input module (this will default the absolute coordinates of all starting nodes to the origin)
-Verify that coordinates exist for all starting nodes through the use of the ALT-G hot key
-Change the "read now" designation ofany included piping.....

As I remembered I just accidentally clicked the global coordinate bottom on the menu bar at some point during inputting data. And I tried to follow the instruction of "see options 5..." to disable the absolute coordinates, but couldn't find the proper choice.
Thank you guys again,