Airflow standalone sqlite3 Integrity Error - sqlite

Question

I'm trying to run airflow standalone after following these instructions https://airflow.apache.org/docs/apache-airflow/stable/start/local.html on "Ubuntu on Windows". I already placed the AirflowHome folder inside C:/Users/my_user_name/ and that's esentially all the changes I did. However, I'm getting an IntegrityError and the documentation seems very cryptic. Could you guys help me out?
standalone | Starting Airflow Standalone
standalone | Checking database is initialized
INFO [alembic.runtime.migration] Context impl SQLiteImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
WARNI [airflow.models.crypto] empty cryptography key - values will not be stored encrypted.
standalone | Database ready
[2022-05-26 10:21:49,812] {manager.py:585} INFO - Removed Permission menu access on Permissions to role Admin
[2022-05-26 10:21:49,885] {manager.py:543} INFO - Removed Permission View: menu_access on Permissions
[2022-05-26 10:21:50,076] {manager.py:508} INFO - Created Permission View: menu access on Permissions
[2022-05-26 10:21:50,127] {manager.py:568} INFO - Added Permission menu access on Permissions to role Admin
triggerer | ____________ _____________
triggerer | ____ |__( )_________ __/__ /________ __
triggerer | ____ /| |_ /__ ___/_ /_ __ /_ __ \_ | /| / /
triggerer | ___ ___ | / _ / _ __/ _ / / /_/ /_ |/ |/ /
triggerer | _/_/ |_/_/ /_/ /_/ /_/ \____/____/|__/
triggerer | [2022-05-26 10:21:58,355] {triggerer_job.py:101} INFO - Starting the triggerer
scheduler | ____________ _____________
scheduler | ____ |__( )_________ __/__ /________ __
scheduler | ____ /| |_ /__ ___/_ /_ __ /_ __ \_ | /| / /
scheduler | ___ ___ | / _ / _ __/ _ / / /_/ /_ |/ |/ /
scheduler | _/_/ |_/_/ /_/ /_/ /_/ \____/____/|__/
scheduler | [2022-05-26 10:21:58 -0400] [233] [INFO] Starting gunicorn 20.1.0
scheduler | [2022-05-26 10:21:58 -0400] [233] [INFO] Listening at: http://0.0.0.0:8793 (233)
scheduler | [2022-05-26 10:21:58 -0400] [233] [INFO] Using worker: sync
scheduler | [2022-05-26 10:21:58 -0400] [234] [INFO] Booting worker with pid: 234
scheduler | [2022-05-26 10:21:58,614] {scheduler_job.py:693} INFO - Starting the scheduler
scheduler | [2022-05-26 10:21:58,614] {scheduler_job.py:698} INFO - Processing each file at most -1 times
scheduler | [2022-05-26 10:21:58,619] {executor_loader.py:106} INFO - Loaded executor: SequentialExecutor
scheduler | [2022-05-26 10:21:58,622] {manager.py:156} INFO - Launched DagFileProcessorManager with pid: 235
scheduler | [2022-05-26 10:21:58,624] {scheduler_job.py:1218} INFO - Resetting orphaned tasks for active dag runs
scheduler | [2022-05-26 10:21:58,639] {settings.py:55} INFO - Configured default timezone Timezone('UTC')
scheduler | [2022-05-26 10:21:58 -0400] [236] [INFO] Booting worker with pid: 236
scheduler | [2022-05-26 10:21:58,709] {manager.py:399} WARNING - Because we cannot use more than 1 thread (parsing_processes = 2) when using sqlite. So we set parallelism to 1.
webserver | [2022-05-26 10:21:59 -0400] [231] [INFO] Starting gunicorn 20.1.0
webserver | [2022-05-26 10:21:59 -0400] [231] [INFO] Listening at: http://0.0.0.0:8080 (231)
webserver | [2022-05-26 10:21:59 -0400] [231] [INFO] Using worker: sync
webserver | [2022-05-26 10:21:59 -0400] [239] [INFO] Booting worker with pid: 239
webserver | [2022-05-26 10:21:59 -0400] [240] [INFO] Booting worker with pid: 240
webserver | [2022-05-26 10:21:59 -0400] [241] [INFO] Booting worker with pid: 241
webserver | [2022-05-26 10:22:00 -0400] [242] [INFO] Booting worker with pid: 242
webserver | [2022-05-26 10:22:02,638] {manager.py:585} INFO - Removed Permission menu access on Permissions to role Admin
webserver | [2022-05-26 10:22:02,644] {manager.py:587} ERROR - Remove Permission to Role Error: DELETE statement on table 'ab_permission_view_role' expected to delete 1 row(s); Only 0 were matched.
webserver | [2022-05-26 10:22:02,776] {manager.py:543} INFO - Removed Permission View: menu_access on Permissions
webserver | /home/carlos/.local/lib/python3.8/site-packages/sqlalchemy/orm/persistence.py:1461 SAWarning: DELETE statement on table 'ab_permission_view' expected to delete 1 row(s); 0 were matched. Please set confirm_deleted_rows=False within the mapper configuration to prevent this warning.
webserver | [2022-05-26 10:22:02,817] {manager.py:543} INFO - Removed Permission View: menu_access on Permissions
webserver | /home/carlos/.local/lib/python3.8/site-packages/sqlalchemy/orm/session.py:2459 SAWarning: Identity map already had an identity for (<class 'airflow.www.fab_security.sqla.models.Permission'>, (185,), None), replacing it with newly flushed object. Are there load operations occurring inside of an event handler within the flush?
webserver | [2022-05-26 10:22:03,097] {manager.py:508} INFO - Created Permission View: menu access on Permissions
webserver | [2022-05-26 10:22:03,168] {manager.py:568} INFO - Added Permission menu access on Permissions to role Admin
webserver | [2022-05-26 10:22:03,175] {manager.py:570} ERROR - Add Permission to Role Error: (sqlite3.IntegrityError) UNIQUE constraint failed: ab_permission_view_role.permission_view_id, ab_permission_view_role.role_id
webserver | [SQL: INSERT INTO ab_permission_view_role (permission_view_id, role_id) VALUES (?, ?)]
webserver | [parameters: (185, 1)]
webserver | (Background on this error at: http://sqlalche.me/e/14/gkpj)
webserver | [2022-05-26 10:22:03,188] {manager.py:570} ERROR - Add Permission to Role Error: (sqlite3.IntegrityError) UNIQUE constraint failed: ab_permission_view_role.permission_view_id, ab_permission_view_role.role_id
webserver | [SQL: INSERT INTO ab_permission_view_role (permission_view_id, role_id) VALUES (?, ?)]
webserver | [parameters: (185, 1)]
webserver | (Background on this error at: http://sqlalche.me/e/14/gkpj)
standalone |
standalone | Airflow is ready
standalone | Login with username: admin password: qhbDVvxz9ARPaWQt
standalone | Airflow Standalone is for development purposes only. Do not use this in production!
When trying to open airflow, I always get the following:
And the same for http://0.0.0.0:8793/
Almost exactly the same happens when I try to run airflow webserver.
Thanks!