error starting appscale

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Methos Shas

Apr 10, 2018, 2:03:14 PM4/10/18
to AppScale Community
I am getting error in appscale up

root@appscale-image0:~# sudo appscale up
Starting AppScale 3.5
Log in to your head node: ssh -i /root/.appscale/appscale8939d4016d30484bbc5a485bb7dc2753.key ro...@
Starting AppController at
Please wait for the AppController to finish pre-processing tasks.
Head node successfully initialized at
Saw Exception while setting AC parameters: Error: layout is missing role appengine.
AppController at crashed for reasons unknown.

A log with more information is available at

And log file shows

cat /root/.appscale/log-6200c9e4-29b0-48eb-abc4-239dae21a3c1

stacktrace : Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/appscale/tools/scripts/", line 46, in main
  File "/usr/local/lib/python2.7/dist-packages/appscale/tools/", line 305, in up
  File "/usr/local/lib/python2.7/dist-packages/appscale/tools/", line 786, in run_instances
    RemoteHelper.start_head_node(options, my_id, node_layout)
  File "/usr/local/lib/python2.7/dist-packages/appscale/tools/", line 336, in start_head_node
    raise AppControllerException(message)
AppControllerException: AppController at crashed for reasons unknown.

exception : AppControllerException

tools_version : 3.5.0

platform : Linux-4.4.0-119-generic-x86_64-with-Ubuntu-16.04-xenial

message : AppController at crashed for reasons unknown.

runtime : CPython

Chris Donati

Apr 10, 2018, 2:17:39 PM4/10/18
The "appengine" role was replaced with "compute" in AppScale 3.5.0. It looks as if you are using a new version of the tools with an older version of AppScale. I would recommend logging on to the head node and confirming that the git repo at /root/appscale is on the 3.5.0 tag.

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