Hello everyone,
There is obviously some difference between installing an XBlock or module using these methods listed below. The first method works, but the second method generates a TemplateDoesNotExist exception when accessing the openedx.course_tab module. I’m hoping that someone can shed some light on this for me. 
Question: What is the correct method of setting or referencing the templates directory in an openedx.course_tab module so that they are found?
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Cloning the rocketchat-tab module first and then adding the path to the
requirements/private.txtfile works.cd $(tutor config printroot)/env/build/openedx/requirements # Clone and then install (works as expected) git clone https://github.com/tony-h/rocketchat-tab.git echo "-e ./rocketchat-tab/" >> private.txt -
However, installing it by adding
git+https://repo-path.gitto therequirements/private.txtgenerates aTemplateDoesNotExistexception when the new tab is opened.cd $(tutor config printroot)/env/build/openedx/requirements # Installs, but can't find the template echo "git+https://github.com/tony-h/rocketchat-tab.git" >> private.txt
The stack trace:
lms_1 | 2022-08-22 05:13:46,277 ERROR 49 [django.request] [user 34] [ip 91.197.235.251] log.py:224 - Internal Server Error: /courses/course-v1:CS+CC+2022/chat
lms_1 | Traceback (most recent call last):
lms_1 | File "/openedx/venv/lib/python3.8/site-packages/django/core/handlers/exception.py", line 47, in inner
lms_1 | response = get_response(request)
lms_1 | File "/openedx/venv/lib/python3.8/site-packages/django/core/handlers/base.py", line 181, in _get_response
lms_1 | response = wrapped_callback(request, *callback_args, **callback_kwargs)
lms_1 | File "/opt/pyenv/versions/3.8.12/lib/python3.8/contextlib.py", line 75, in inner
lms_1 | return func(*args, **kwds)
lms_1 | File "/openedx/venv/lib/python3.8/site-packages/django/views/generic/base.py", line 70, in view
lms_1 | return self.dispatch(request, *args, **kwargs)
lms_1 | File "/openedx/venv/lib/python3.8/site-packages/django/views/generic/base.py", line 98, in dispatch
lms_1 | return handler(request, *args, **kwargs)
lms_1 | File "/openedx/venv/lib/python3.8/site-packages/web_fragments/views.py", line 23, in get
lms_1 | fragment = self.render_to_fragment(request, **kwargs)
lms_1 | File "/openedx/venv/lib/python3.8/site-packages/rocketchat_tab/views.py", line 83, in render_to_fragment
lms_1 | html = render_to_string(
lms_1 | File "/openedx/venv/lib/python3.8/site-packages/django/template/loader.py", line 61, in render_to_string
lms_1 | template = get_template(template_name, using=using)
lms_1 | File "/openedx/venv/lib/python3.8/site-packages/django/template/loader.py", line 19, in get_template
lms_1 | raise TemplateDoesNotExist(template_name, chain=chain)
lms_1 | django.template.exceptions.TemplateDoesNotExist: rocket_chat/rocket_chat.html
I can confirm that the template or static directories do not exist in the site-packages directory after installation. Where did they go? 
find ~ -type f -name "rocket_chat.html" returns an empty result.
app@11afc8e1bf60:~/venv/lib/python3.8/site-packages/rocketchat_tab$ ls -lh
total 64K
-rw-r--r-- 1 app app 89 Aug 22 16:21 admin.py
-rw-r--r-- 1 app app 5.6K Aug 22 16:21 ApiRequest.py
-rw-r--r-- 1 app app 850 Aug 22 16:21 apps.py
-rw-r--r-- 1 app app 0 Aug 22 16:21 __init__.py
drwxr-xr-x 3 app app 4.0K Aug 22 16:21 migrations
-rw-r--r-- 1 app app 83 Aug 22 16:21 models.py
-rw-r--r-- 1 app app 773 Aug 22 16:21 plugins.py
drwxr-xr-x 2 app app 4.0K Aug 22 16:21 __pycache__
-rw-r--r-- 1 app app 772 Aug 22 16:21 RocketChatError.py
-rw-r--r-- 1 app app 11K Aug 22 16:21 RocketChat.py
drwxr-xr-x 3 app app 4.0K Aug 22 16:21 settings
-rw-r--r-- 1 app app 315 Aug 22 16:21 urls.py
-rw-r--r-- 1 app app 4.2K Aug 22 16:21 views.py
app@11afc8e1bf60:~/venv/lib/python3.8/site-packages/rocketchat_tab$
Any ideas on how to set the reference to the templates and static files so that Open edX can locate them?
Many thanks
Adding the MANIFEST.in file was half the problem. I also had to set the