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Positioning Appliction: Why do I get the message "Error: 'Cannot find h/w configuration <config name>. Using the first in the h/w configuration list which is <config name>'"?

  • PosApp (SimGEN / SimREPLAYplus / SimREPLAY)
  • Hardware (h/w) configuration (config) listings are held in a file called sig_gen.txt, stored in the PosApp directory
  • This message informs you that PosApp cannot find the h/w config that was used when you last started the software
  • Instead, PosApp will select the first config in the current list.
  • This can happen if the sig_gen.txt file has been
    • Removed / Deleted
    • Replaced
    • Modified
  • The example in Figure 1 explains that
    • PosApp cannot find a h/w config called "GSS7700#8888" in the current sig_gen.txt file
    • Instead the first h/w config from the current sig_gen.txt file will be used, which is called "6700 3 L1".


  1. If you know the sig_gen.txt file has changed and you are confident it is the one you want to use
        a) Simpy acknowledge the message and continue working
        b) If necessary/applicable, use menu [Tools-->Change hardware configuration] to select the h/w config you want to use
  2. If you know the sig_gen.txt file has changed but are uncertain if it's the correct one  -OR-  you didn't know the sig_gen.txt file has changed
        a) Acknowledge the message and allow PosApp to start
        b) Go to menu [Tools-->Change hardware configuration]
        c) Check the available list of h/w configs
        d) If these match your expectation then continue working as normal
        e) If these do not match your expectation then either
                i) Locate the correct sig_gen.txt file for your system and copy this back to the PosApp directory
               ii) Contact Spirent Global Services to request a copy of your sig_gen.txt (see below)



  1. Use the "Submit a Service Request" link on the right-hand side of the Knowledge Base screen
  2. Confirm the model and serial number of the simulator(s) you are working with
  3. Explain that you have experienced the warning message detailed on this article and require a copy of your sig_gen.txt file

Product : SimREPLAYplus,SimREPLAY,SimGEN,PosApp