VIAVI TestCenter-Automation: What does "wrong ELF class: " error on Linux or Solaris mean?

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VIAVI TestCenter-Automation: What does "wrong ELF class: " error on Linux or Solaris mean?
wrong ELF class error usually means that you attempted to run VIAVI TestCenter API with 64 bit tcl. You will need to compile 32 bit TCL and use that.