Internal Error 500 Splunk app setup

[mmoermans]

When trying to run the setup of an app we get an "Oops, Internal Error 550" message.

2019-10-15 18:44:13,055 ERROR   [5da5f75c7c7fc82054ccd0] error:325 - Traceback (most recent call last):
  File "/opt/splunk/lib/python2.7/site-packages/cherrypy/_cprequest.py", line 606, in respond
    cherrypy.response.body = self.handler()
  File "/opt/splunk/lib/python2.7/site-packages/splunk/appserver/mrsparkle/lib/htmlinjectiontoolfactory.py", line 72, in wrapper
    resp = handler(*args, **kwargs)
  File "/opt/splunk/lib/python2.7/site-packages/cherrypy/_cpdispatch.py", line 25, in __call__
    return self.callable(*self.args, **self.kwargs)
  File "/opt/splunk/lib/python2.7/site-packages/splunk/appserver/mrsparkle/lib/routes.py", line 366, in default
    return route.target(self, **kw)
  File "<string>", line 1, in <lambda>
  File "/opt/splunk/lib/python2.7/site-packages/splunk/appserver/mrsparkle/lib/decorators.py", line 38, in rundecs
    return fn(*a, **kw)
  File "<string>", line 1, in <lambda>
  File "/opt/splunk/lib/python2.7/site-packages/splunk/appserver/mrsparkle/lib/decorators.py", line 119, in check
    return fn(self, *a, **kw)
  File "<string>", line 1, in <lambda>
  File "/opt/splunk/lib/python2.7/site-packages/splunk/appserver/mrsparkle/lib/decorators.py", line 167, in validate_ip
    return fn(self, *a, **kw)
  File "<string>", line 1, in <lambda>
  File "/opt/splunk/lib/python2.7/site-packages/splunk/appserver/mrsparkle/lib/decorators.py", line 335, in preform_sso_check
    return fn(self, *a, **kw)
  File "<string>", line 1, in <lambda>
  File "/opt/splunk/lib/python2.7/site-packages/splunk/appserver/mrsparkle/lib/decorators.py", line 374, in check_login
    return fn(self, *a, **kw)
  File "<string>", line 1, in <lambda>
  File "/opt/splunk/lib/python2.7/site-packages/splunk/appserver/mrsparkle/lib/decorators.py", line 394, in handle_exceptions
    return fn(self, *a, **kw)
  File "<string>", line 1, in <lambda>
  File "/opt/splunk/lib/python2.7/site-packages/splunk/appserver/mrsparkle/lib/decorators.py", line 449, in apply_cache_headers
    response = fn(self, *a, **kw)
  File "/opt/splunk/lib/python2.7/site-packages/splunk/appserver/mrsparkle/controllers/admin.py", line 1715, in listEntities
    app_name = eai_acl.get('app')
AttributeError: 'NoneType' object has no attribute 'get'

Anyone have a clue what issue is causing this?

[mmoermans · Accepted solution]

Was solved by finding script in app using default splunk port 8089 while we used a non-default port.
Changing the script to the correct port solved the issue.

[christoffertoft]

Found any solution to this?