An anonymous reader writes: A post at the Planetary Society's blog summarizes a report from NASA's Office of Inspector General which says the agency will struggle to get launch facilities up and running in time for the Space Launch System's November 2018 launch deadline. "Ground systems are a critical piece of the SLS-Orion infrastructure. All three elements are tightly integrated, with ground systems requiring significant input from the rocket and capsule designs." To be more specific, NASA has found 462 separate inter-dependencies, less than two-thirds of which have been resolved so far. "The Mobile Launcher must be moved into the Vehicle Assembly Building for testing prior to the delivery of SLS and Orion. When it comes time to stack the rocket and capsule for the first flight, there may be a 'learning curve,' said the OIG, where engineers work through unforeseen glitches." They're also worried about having to develop all the software to run these systems before the hardware is in place to test.