# Nextcloud v211225439 cannot be installed from scratch **URL:** \ **Category:** Existing Apps\ **Tags:** nextcloud\ **Created:** [26 December 2021 16:35 UTC](https://syncloud.discourse.group/t/nextcloud-v211225439-cannot-be-installed-from-scratch/139 "2021-12-26T16:35:53Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![SimoneBuralli](https://avatars.discourse-cdn.com/v4/letter/s/f07891/32.png) [@SimoneBuralli](https://syncloud.discourse.group/u/SimoneBuralli)\ **Post date:** [26 December 2021 16:35 UTC](https://syncloud.discourse.group/t/nextcloud-v211225439-cannot-be-installed-from-scratch/139/1 "2021-12-26T16:35:53Z")
Hi team, after a complete removal of Nextcloud I cannot install it anymore. I have renamed the data folder (as /opt/disk/external/nextcloud\_old) but there still remains something old in the DB that conflicts. See below. Thanks in advance Simone ```auto root@syncloud:~# sudo snap install nextcloud error: cannot perform the following tasks: - Run configure hook of "nextcloud" snap if present (run hook "configure": ----- 2021-12-26 16:22:30,173 - nextcloud_config - INFO - setting value: datadirectory = /opt/disk/external/nextcloud 2021-12-26 16:22:31,846 - database - INFO - postgres executing: snap run nextcloud.psql -U nextcloud -d postgres -c "ALTER USER nextcloud WITH PASSWORD 'nextcloud';" 2021-12-26 16:22:32,086 - database - INFO - ALTER ROLE 2021-12-26 16:23:44,158 - nextcloud_occ - INFO - Nextcloud was successfully installed 2021-12-26 16:23:51,325 - nextcloud_occ - INFO - user_ldap 1.13.0 enabled 2021-12-26 16:23:53,240 - nextcloud_occ - INFO - Created new configuration with configID s01 2021-12-26 16:23:55,134 - nextcloud_occ - INFO - Created new configuration with configID s02 2021-12-26 16:24:36,630 - nextcloud_occ - INFO - All tables already up to date! 2021-12-26 16:24:36,631 - cron - INFO - running: /usr/bin/snap run nextcloud.cron Fontconfig error: Cannot load default config file 2021-12-26 16:24:43,602 - cron - INFO - b'' 2021-12-26 16:24:43,603 - database - INFO - postgres executing: snap run nextcloud.psql -U nextcloud -d nextcloud -c "update oc_ldap_group_mapping set owncloud_name = 'admin';" ERROR: duplicate key value violates unique constraint "owncloud_name_groups" DETAIL: Key (owncloud_name)=(admin) already exists. 2021-12-26 16:24:43,706 - database - ERROR - postgres error: Traceback (most recent call last): File "/snap/nextcloud/211225439/meta/hooks/configure", line 7, in Installer().configure() File "/snap/nextcloud/211225439/hooks/installer.py", line 110, in configure self.initialize(app_storage_dir) File "/snap/nextcloud/211225439/hooks/installer.py", line 241, in initialize self.db.execute(DB_NAME, DB_USER, "update oc_ldap_group_mapping set owncloud_name = 'admin';") File "/snap/nextcloud/211225439/hooks/postgres.py", line 46, in execute self.run('snap run nextcloud.psql -U {0} -d {1} -c "{2}"'.format(user, database, sql)) File "/snap/nextcloud/211225439/hooks/postgres.py", line 62, in run raise e File "/snap/nextcloud/211225439/hooks/postgres.py", line 58, in run output = check_output(cmd, shell=True).decode() File "/snap/nextcloud/current/python/usr/local/lib/python3.8/subprocess.py", line 415, in check_output return run(*popenargs, stdout=PIPE, timeout=timeout, check=True, File "/snap/nextcloud/current/python/usr/local/lib/python3.8/subprocess.py", line 516, in run raise CalledProcessError(retcode, process.args, subprocess.CalledProcessError: Command 'snap run nextcloud.psql -U nextcloud -d nextcloud -c "update oc_ldap_group_mapping set owncloud_name = 'admin';"' returned non-zero exit status 1. -----) root@syncloud:~# ``` ---
**Author:** ![boris](https://avatars.discourse-cdn.com/v4/letter/b/74df32/32.png) [@boris](https://syncloud.discourse.group/u/boris)\ **Post date:** [27 December 2021 17:21 UTC](https://syncloud.discourse.group/t/nextcloud-v211225439-cannot-be-installed-from-scratch/139/2 "2021-12-27T17:21:24Z")
```auto snap run nextcloud.psql -U nextcloud -d nextcloud -c "select * from oc_ldap_group_mapping;" ``` Are you sure it is not installed, can you run this? ---
**Author:** ![SimoneBuralli](https://avatars.discourse-cdn.com/v4/letter/s/f07891/32.png) [@SimoneBuralli](https://syncloud.discourse.group/u/SimoneBuralli)\ **Post date:** [27 December 2021 17:24 UTC](https://syncloud.discourse.group/t/nextcloud-v211225439-cannot-be-installed-from-scratch/139/3 "2021-12-27T17:24:42Z")
```auto root@syncloud:~# snap run nextcloud.psql -U nextcloud -d nextcloud -c "select * from oc_ldap_group_mapping;" error: cannot find current revision for snap nextcloud: readlink /snap/nextcloud/current: no such file or directory root@syncloud:~# ``` ---
**Author:** ![boris](https://avatars.discourse-cdn.com/v4/letter/b/74df32/32.png) [@boris](https://syncloud.discourse.group/u/boris)\ **Post date:** [27 December 2021 18:18 UTC](https://syncloud.discourse.group/t/nextcloud-v211225439-cannot-be-installed-from-scratch/139/4 "2021-12-27T18:18:42Z")
Do you use Users app, if yes how many users/groups do you have? Do you have admin user/group? ---
**Author:** ![boris](https://avatars.discourse-cdn.com/v4/letter/b/74df32/32.png) [@boris](https://syncloud.discourse.group/u/boris)\ **Post date:** [27 December 2021 18:42 UTC](https://syncloud.discourse.group/t/nextcloud-v211225439-cannot-be-installed-from-scratch/139/5 "2021-12-27T18:42:45Z")
ok, I was able to reproduce it, if you create users and then install Nextcloud it fails, please follow this issue: [Unable to install Nextcloud, multiple lda group mappings ยท Issue #625 ยท syncloud/platform ยท GitHub](https://github.com/syncloud/platform/issues/625) ---
**Author:** ![SimoneBuralli](https://avatars.discourse-cdn.com/v4/letter/s/f07891/32.png) [@SimoneBuralli](https://syncloud.discourse.group/u/SimoneBuralli)\ **Post date:** [27 December 2021 23:46 UTC](https://syncloud.discourse.group/t/nextcloud-v211225439-cannot-be-installed-from-scratch/139/6 "2021-12-27T23:46:53Z")
> Do you use Users app, if yes how many users/groups do you have? Yes, I had one group and 3 users. > Do you have admin user/group? As far as I remember the only admin-like was the user with the same credentials of Syncloud. With that user you can create/delete users, groups, install/remove plugins, etc. Thanks ---
**Author:** ![boris](https://avatars.discourse-cdn.com/v4/letter/b/74df32/32.png) [@boris](https://syncloud.discourse.group/u/boris)\ **Post date:** [28 December 2021 16:00 UTC](https://syncloud.discourse.group/t/nextcloud-v211225439-cannot-be-installed-from-scratch/139/7 "2021-12-28T16:00:16Z")
Could you try ```auto snap install nextcloud --channel=master ``` ---
**Author:** ![SimoneBuralli](https://avatars.discourse-cdn.com/v4/letter/s/f07891/32.png) [@SimoneBuralli](https://syncloud.discourse.group/u/SimoneBuralli)\ **Post date:** [28 December 2021 23:19 UTC](https://syncloud.discourse.group/t/nextcloud-v211225439-cannot-be-installed-from-scratch/139/8 "2021-12-28T23:19:57Z")
Great job! It works fine. Thanks a lot ๐Ÿ• ๐Ÿ• ๐Ÿ• ---
**Author:** ![boris](https://avatars.discourse-cdn.com/v4/letter/b/74df32/32.png) [@boris](https://syncloud.discourse.group/u/boris)\ **Post date:** [29 December 2021 12:13 UTC](https://syncloud.discourse.group/t/nextcloud-v211225439-cannot-be-installed-from-scratch/139/9 "2021-12-29T12:13:03Z")
The fix is released to stable channel, please run this to switch back to stable ```auto snap install nextcloud --channel=stable ``` ---
**Author:** ![SimoneBuralli](https://avatars.discourse-cdn.com/v4/letter/s/f07891/32.png) [@SimoneBuralli](https://syncloud.discourse.group/u/SimoneBuralli)\ **Post date:** [29 December 2021 19:07 UTC](https://syncloud.discourse.group/t/nextcloud-v211225439-cannot-be-installed-from-scratch/139/10 "2021-12-29T19:07:39Z")
> [@boris](#): > > `snap install nextcloud --channel=stable` ๐Ÿ‘ successfully done