Hi i am trying to install Ironic using devstack.I have succesfully installed Havana on devstack and i was able to create few instances.Then i ran unstack.sh followed by clean.sh .Next i have changed the localrc file as per the following url ( https://gist.github.com/max-lobur/778... ) and increased the timeout to 120 seconds as per the url . stack.sh was running smootly ,suddenly it failed stating ./stack.sh: line 734: install_ironic: command not found. Also i want to know if this problem is caused because i was using the same devstack for ironic also.In case if i want to use fresh devstack ,how should i remove the existing devstack.