Hi Michael,
I've tried to install redislite from this link and executed redis-server
https://github.com/GluuFederation/redislite/archive/master.zip
I've also installed below command found cluster manager issue raised from another ticket.
`pip3 install --upgrade MarkupSafe==2.1.0`
After that also I am getting below error.
```
Creating clustermgr data directory
Upgrading Database
Traceback (most recent call last):
File "/usr/local/bin/clusterapp.py", line 27, in <module>
app = create_app()
File "/usr/local/lib/python3.8/dist-packages/clustermgr/application.py", line 71, in create_app
from clustermgr.views.index import index
File "/usr/local/lib/python3.8/dist-packages/clustermgr/views/index.py", line 18, in <module>
from clustermgr.forms import AppConfigForm, SchemaForm, \
File "/usr/local/lib/python3.8/dist-packages/clustermgr/forms.py", line 251, in <module>
class SignUpForm(FlaskForm):
File "/usr/local/lib/python3.8/dist-packages/clustermgr/forms.py", line 260, in SignUpForm
license_confirm = BooleanField(jinja2.Markup('Check here to indicate that you have read and agree to the terms of the <a href="https://github.com/GluuFederation/cluster-mgr/blob/master/LICENSE">GLUU-SUPPORT license</a>') , validators=[DataRequired()])
AttributeError: module 'jinja2' has no attribute 'Markup'
Starting Celery Worker
celery multi v5.2.6 (dawn-chorus)
> Starting nodes...
Traceback (most recent call last):
File "/usr/lib/python3.8/runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/usr/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/usr/local/lib/python3.8/dist-packages/celery/__main__.py", line 19, in <module>
main()
File "/usr/local/lib/python3.8/dist-packages/celery/__main__.py", line 13, in main
maybe_patch_concurrency()
File "/usr/local/lib/python3.8/dist-packages/celery/__init__.py", line 146, in maybe_patch_concurrency
concurrency.get_implementation(pool)
File "/usr/local/lib/python3.8/dist-packages/celery/concurrency/__init__.py", line 28, in get_implementation
return symbol_by_name(cls, ALIASES)
File "/usr/local/lib/python3.8/dist-packages/kombu/utils/imports.py", line 56, in symbol_by_name
module = imp(module_name, package=package, **kwargs)
File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 848, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/usr/local/lib/python3.8/dist-packages/celery/concurrency/prefork.py", line 19, in <module>
from .asynpool import AsynPool
File "/usr/local/lib/python3.8/dist-packages/celery/concurrency/asynpool.py", line 29, in <module>
from billiard.compat import buf_t, isblocking, setblocking
ImportError: cannot import name 'buf_t' from 'billiard.compat' (/usr/local/lib/python3.8/dist-packages/billiard/compat.py)
> worker@user: * Child terminated with exit code 1
FAILED
Starting Celery Beat
Usage: celery [OPTIONS] COMMAND [ARGS]...
Try 'celery --help' for help.
Error: Invalid value for '-A' / '--app':
Unable to load celery application.
Module 'jinja2' has no attribute 'markup'
Starting Gunicorn Web Server
```