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Sorry to hear you’re facing problems 
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In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:
example
Or for longer, use three backticks above and below the code snippet:
longer
example
here
Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can 
Nextcloud version (eg, 20.0.5): 28.0.3 in AIO distro
Operating system and version (eg, Ubuntu 20.04): ubuntu 22.04
Apache or nginx version (eg, Apache 2.4.25): apache 2.4.58
PHP version (eg, 7.4): PHP 8.2.16
The issue you are facing:
Hey, guys! I just set up Nexcloud AIO and everything seems to be working great. I ran some simple tests and then installed a few apps. Most of them are working fine, but there’s this one app called “Mindmap” that’s giving me trouble. When I go to the web interface, I can’t find the option to add a mindmap file under the “+NEW” menu. And when I try to upload and edit a mindmap file in the browser, the app just won’t open(download instead). I’ve tried uninstalling and reinstalling the app, but it hasn’t helped at all.
It seems like there might be some file associations missing in my Nextcloud setup, but I have no idea how to fix it. Can anyone point me in the right direction? Thanks a lot in advance!
Is this the first time you’ve seen this error? (Y/N): Y
Steps to replicate it:
- install app called files_mindmap
- no mindmap option in “+ NEW” menu
- on the web insterface of nextcloud, click a file ending with “.km”, my browser start to download it instead of open it with mindmap
The output of your Nextcloud log in Admin > Logging:
no error displaied
The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):
{
"system": {
"one-click-instance": true,
"one-click-instance.user-limit": 100,
"memcache.local": "\\OC\\Memcache\\APCu",
"apps_paths": [
{
"path": "\/var\/www\/html\/apps",
"url": "\/apps",
"writable": false
},
{
"path": "\/var\/www\/html\/custom_apps",
"url": "\/custom_apps",
"writable": true
}
],
"appsallowlist": false,
"check_data_directory_permissions": false,
"memcache.distributed": "\\OC\\Memcache\\Redis",
"memcache.locking": "\\OC\\Memcache\\Redis",
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"password": "***REMOVED SENSITIVE VALUE***",
"port": 6379
},
"overwritehost": "yun.xxx.net",
"overwriteprotocol": "https",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": {
"0": "localhost",
"1": "yun.xxx.net",
"3": "192.168.1.250"
},
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "pgsql",
"version": "28.0.3.2",
"overwrite.cli.url": "https:\/\/yun.xxx.net\/",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"instanceid": "***REMOVED SENSITIVE VALUE***",
"maintenance": false,
"loglevel": "2",
"log_type": "file",
"logfile": "\/var\/www\/html\/data\/nextcloud.log",
"log_rotate_size": "10485760",
"log.condition": {
"apps": [
"admin_audit"
]
},
"preview_max_x": "2048",
"preview_max_y": "2048",
"jpeg_quality": "60",
"enabledPreviewProviders": {
"1": "OC\\Preview\\Image",
"2": "OC\\Preview\\MarkDown",
"3": "OC\\Preview\\MP3",
"4": "OC\\Preview\\TXT",
"5": "OC\\Preview\\OpenDocument",
"6": "OC\\Preview\\Movie",
"7": "OC\\Preview\\Krita",
"0": "OC\\Preview\\Imaginary"
},
"enable_previews": true,
"upgrade.disable-web": true,
"mail_smtpmode": "smtp",
"trashbin_retention_obligation": "auto, 30",
"versions_retention_obligation": "auto, 30",
"activity_expire_days": "30",
"simpleSignUpLink.shown": false,
"share_folder": "\/Shared",
"one-click-instance.link": "https:\/\/nextcloud.com\/all-in-one\/",
"upgrade.cli-upgrade-link": "https:\/\/github.com\/nextcloud\/all-in-one\/discussions\/2726",
"updatedirectory": "\/nc-updater",
"maintenance_window_start": 100,
"allow_local_remote_servers": true,
"davstorage.request_timeout": 3600,
"htaccess.RewriteBase": "\/",
"dbpersistent": false,
"files_external_allow_create_new_local": true,
"trusted_proxies": "***REMOVED SENSITIVE VALUE***",
"preview_imaginary_url": "***REMOVED SENSITIVE VALUE***",
"preview_imaginary_key": "d2a9a2978ed71f4dc4b4e4eada16eba7bae4d38ca7fb9bf9",
"data-fingerprint": "3b060a641d42f26ff0548b5366b9c60d",
"mail_from_address": "***REMOVED SENSITIVE VALUE***",
"mail_sendmailmode": "smtp",
"mail_domain": "***REMOVED SENSITIVE VALUE***",
"mail_smtphost": "***REMOVED SENSITIVE VALUE***",
"mail_smtpport": "587",
"mail_smtpauth": 1,
"mail_smtpname": "***REMOVED SENSITIVE VALUE***",
"mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
"default_phone_region": "CN"
},
"apps": {
"activity": {
"installed_version": "2.20.0",
"types": "filesystem",
"enabled": "yes"
},
"admin_audit": {
"installed_version": "1.18.0",
"types": "logging",
"enabled": "yes",
"logfile": "\/var\/www\/html\/data\/audit.log"
},
"backgroundjob": {
"lastjob": "70"
},
"calendar": {
"installed_version": "4.6.7",
"types": "",
"enabled": "yes"
},
"circles": {
"installed_version": "28.0.0-dev",
"types": "filesystem,dav",
"enabled": "yes",
"loopback_tmp_scheme": "https",
"migration_22": "1",
"migration_run": "0",
"loopback_tmp_path": "\/",
"maintenance_run": "0",
"maintenance_update": "{\"3\":1711253474,\"2\":1711253774,\"1\":1711253774}"
},
"cloud_federation_api": {
"installed_version": "1.11.0",
"types": "filesystem",
"enabled": "yes"
},
"comments": {
"installed_version": "1.18.0",
"types": "logging",
"enabled": "yes"
},
"contacts": {
"installed_version": "5.5.3",
"types": "dav",
"enabled": "yes"
},
"contactsinteraction": {
"installed_version": "1.9.0",
"types": "dav",
"enabled": "yes"
},
"core": {
"installedat": "1711084174.1535",
"lastupdatedat": "1711084174.158",
"vendor": "nextcloud",
"public_webdav": "dav\/appinfo\/v1\/publicwebdav.php",
"public_files": "files_sharing\/public.php",
"files_metadata_installed": "1",
"files_metadata": "{\"photos-original_date_time\":{\"value\":null,\"type\":\"int\",\"indexed\":true,\"editPermission\":0},\"photos-exif\":{\"value\":null,\"type\":\"array\",\"indexed\":false,\"editPermission\":0},\"photos-ifd0\":{\"value\":null,\"type\":\"array\",\"indexed\":false,\"editPermission\":0},\"photos-size\":{\"value\":null,\"type\":\"array\",\"indexed\":false,\"editPermission\":0}}",
"moveavatarsdone": "yes",
"previewsCleanedUp": "1",
"backgroundjobs_mode": "cron",
"lastcron": "1711253775",
"emailTestSuccessful": "1"
},
"dashboard": {
"installed_version": "7.8.0",
"types": "",
"enabled": "yes"
},
"dav": {
"installed_version": "1.29.1",
"types": "filesystem",
"enabled": "yes",
"regeneratedBirthdayCalendarsForYearFix": "yes",
"buildCalendarSearchIndex": "yes",
"buildCalendarReminderIndex": "yes"
},
"deck": {
"installed_version": "1.12.2",
"types": "dav",
"enabled": "yes"
},
"drawio": {
"installed_version": "3.0.2",
"types": "filesystem",
"enabled": "yes"
},
"federatedfilesharing": {
"installed_version": "1.18.0",
"types": "",
"enabled": "yes"
},
"federation": {
"installed_version": "1.18.0",
"types": "authentication",
"enabled": "yes"
},
"files": {
"installed_version": "2.0.0",
"types": "filesystem",
"enabled": "yes"
},
"files_antivirus": {
"av_path": "\/usr\/bin\/clamscan",
"installed_version": "5.4.2",
"types": "filesystem,dav",
"enabled": "yes",
"av_mode": "daemon",
"av_port": "3310",
"av_host": "nextcloud-aio-clamav",
"av_stream_max_length": "104857600",
"av_max_file_size": "104857600",
"av_infected_action": "only_log"
},
"files_fulltextsearch": {
"installed_version": "28.0.0",
"types": "filesystem",
"enabled": "yes",
"files_pdf": "1",
"files_office": "1"
},
"files_mindmap": {
"installed_version": "0.0.30",
"enabled": "yes",
"types": ""
},
"files_pdfviewer": {
"installed_version": "2.9.0",
"types": "",
"enabled": "yes"
},
"files_reminders": {
"installed_version": "1.1.0",
"types": "dav",
"enabled": "yes"
},
"files_sharing": {
"installed_version": "1.20.0",
"types": "filesystem",
"enabled": "yes"
},
"files_trashbin": {
"installed_version": "1.18.0",
"types": "filesystem,dav",
"enabled": "yes"
},
"files_versions": {
"installed_version": "1.21.0",
"types": "filesystem,dav",
"enabled": "yes"
},
"firstrunwizard": {
"installed_version": "2.17.0",
"types": "logging",
"enabled": "yes"
},
"fulltextsearch": {
"installed_version": "28.0.1",
"types": "",
"enabled": "yes",
"search_platform": "OCA\\FullTextSearch_Elasticsearch\\Platform\\ElasticSearchPlatform",
"cron_err_reset": "1711084427"
},
"fulltextsearch_elasticsearch": {
"installed_version": "28.0.1",
"types": "",
"enabled": "yes",
"elastic_host": "http:\/\/elastic:1836078472931b845337e812e8b489ffada60ecb9165b0ca@nextcloud-aio-fulltextsearch:9200",
"elastic_index": "nextcloud-aio"
},
"groupfolders": {
"installed_version": "16.0.4",
"types": "filesystem,dav",
"enabled": "yes"
},
"integration_openproject": {
"openproject_client_id": "BI054w2Blk1Hp8Qo1r26CeO_iUqdbZeHgqxkPMvX-FU",
"fresh_project_folder_setup": "0",
"installed_version": "2.6.1",
"types": "",
"enabled": "yes",
"default_enable_unified_search": "",
"openproject_client_secret": "1MJPqcy-RCCGbZFAbd_X3oMfZhDRTnMOoP0LLmkAfzU",
"default_enable_navigation": "1",
"nc_oauth_client_id": "1",
"openproject_instance_url": "https:\/\/p.xxx.net"
},
"logreader": {
"installed_version": "2.13.0",
"types": "logging",
"enabled": "yes"
},
"lookup_server_connector": {
"installed_version": "1.16.0",
"types": "authentication",
"enabled": "yes"
},
"nextcloud-aio": {
"installed_version": "0.5.0",
"types": "",
"enabled": "yes"
},
"nextcloud_announcements": {
"installed_version": "1.17.0",
"types": "logging",
"enabled": "yes",
"pub_date": "Thu, 24 Oct 2019 00:00:00 +0200"
},
"notes": {
"installed_version": "4.9.2",
"types": "",
"enabled": "yes"
},
"notifications": {
"installed_version": "2.16.0",
"types": "logging",
"enabled": "yes"
},
"notify_push": {
"installed_version": "0.6.10",
"types": "filesystem",
"enabled": "yes",
"base_endpoint": "https:\/\/yun.xxx\/push"
},
"oauth2": {
"installed_version": "1.16.3",
"types": "authentication",
"enabled": "yes"
},
"password_policy": {
"installed_version": "1.18.0",
"types": "authentication",
"enabled": "yes"
},
"photos": {
"installed_version": "2.4.0",
"types": "dav,authentication",
"enabled": "yes",
"lastPlaceMappingDone": "true",
"lastPlaceMappedUser": "admin"
},
"preview": {
"jpeg_quality": "60"
},
"privacy": {
"installed_version": "1.12.0",
"types": "",
"enabled": "yes"
},
"provisioning_api": {
"installed_version": "1.18.0",
"types": "prevent_group_restriction",
"enabled": "yes"
},
"recommendations": {
"installed_version": "2.0.0",
"types": "",
"enabled": "yes"
},
"related_resources": {
"installed_version": "1.3.0",
"types": "",
"enabled": "yes"
},
"richdocuments": {
"installed_version": "8.3.2",
"types": "prevent_group_restriction",
"enabled": "yes",
"wopi_url": "https:\/\/yun.xxx.net\/",
"wopi_allowlist": "104.21.83.151,2606:4700:3036::6815:5397,127.0.0.1\/8,192.168.0.0\/16,172.16.0.0\/12,10.0.0.0\/8,fd00::\/8,::1",
"wopi_callback_url": "",
"public_wopi_url": "https:\/\/yun.xxx.net"
},
"serverinfo": {
"installed_version": "1.18.0",
"types": "",
"enabled": "yes",
"cached_count_filecache": "531",
"cached_count_storages": "3"
},
"settings": {
"installed_version": "1.10.1",
"types": "",
"enabled": "yes"
},
"sharebymail": {
"installed_version": "1.18.0",
"types": "filesystem",
"enabled": "yes"
},
"support": {
"installed_version": "1.11.0",
"types": "session",
"enabled": "yes",
"SwitchUpdaterServerHasRun": "yes"
},
"survey_client": {
"installed_version": "1.16.0",
"types": "",
"enabled": "yes"
},
"systemtags": {
"installed_version": "1.18.0",
"types": "logging",
"enabled": "yes"
},
"tasks": {
"installed_version": "0.15.0",
"types": "",
"enabled": "yes"
},
"text": {
"installed_version": "3.9.1",
"types": "dav",
"enabled": "yes"
},
"theming": {
"installed_version": "2.3.0",
"types": "logging",
"enabled": "yes"
},
"twofactor_backupcodes": {
"installed_version": "1.17.0",
"types": "",
"enabled": "yes"
},
"twofactor_totp": {
"installed_version": "10.0.0-beta.2",
"types": "",
"enabled": "yes"
},
"user_status": {
"installed_version": "1.8.1",
"types": "",
"enabled": "yes"
},
"viewer": {
"installed_version": "2.2.0",
"types": "",
"enabled": "yes"
},
"weather_status": {
"installed_version": "1.8.0",
"types": "",
"enabled": "yes"
},
"workflowengine": {
"installed_version": "2.10.0",
"types": "filesystem",
"enabled": "yes"
}
}
}
The output of your Apache/nginx/system log in /var/log/____:
PASTE HERE
PASTE HERE
Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.
PASTE HERE