Unable to enable "External storage support" app

[Revertron]

Steps to reproduce

1. Install NC 11
2. Try to enable External storage support
3. It says: Error while enabling app

Expected behaviour

The app would be enabled

Actual behaviour

It says: Error while enabling app

Server configuration

Operating system: Debian 8 x86_64

Web server: Nginx 1.11

Database: MariaDB 10+

PHP version: 7.0.14

Nextcloud version: 11.0.0.10

Updated from an older Nextcloud/ownCloud or fresh install: Updated from 9 and 10

Where did you install Nextcloud from: nextcloud.com

Signing status:
No errors have been found.

List of activated apps:

App list

Enabled: - activity: 2.4.1 - admin_audit: 1.1.0 - apporder: 0.3.3 - bookmarks: 0.9.1 - calendar: 1.4.1 - comments: 1.1.0 - contacts: 1.5.2 - dav: 1.1.1 - direct_menu: 0.9.3 - federatedfilesharing: 1.1.1 - federation: 1.1.1 - files: 1.6.1 - files_clipboard: 0.5.0 - files_pdfviewer: 1.0.1 - files_retention: 1.0.1 - files_sharing: 1.1.1 - files_texteditor: 2.2 - files_trashbin: 1.1.0 - files_versions: 1.4.0 - files_videoplayer: 1.0.0 - firstrunwizard: 2.0 - gallery: 16.0.0 - logreader: 2.0.0 - lookup_server_connector: 1.0.0 - news: true - nextcloud_announcements: 1.0 - notifications: 1.0.1 - ownnote: 1.08 - password_policy: 1.1.0 - previewgenerator: 1.0.1 - provisioning_api: 1.1.0 - serverinfo: 1.1.1 - sharebymail: 1.0.1 - sharerenamer: 1.1 - spreed: 1.1.2 - survey_client: 0.1.5 - systemtags: 1.1.3 - templateeditor: 0.2 - theming: 1.1.1 - twofactor_backupcodes: 1.0.0 - updatenotification: 1.1.1 - workflowengine: 1.1.1

The content of config/config.php:

Config report

{
    "system": {
        "instanceid": "oc4p0q4g0czk",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "cloud.jamm.me"
        ],
        "datadirectory": "\/nextcloud_data",
        "overwrite.cli.url": "https:\/\/cloud.jamm.me",
        "dbtype": "mysql",
        "version": "11.0.0.10",
        "dbname": "nextcloud",
        "dbhost": "127.0.0.1",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "loglevel": 0,
        "theme": "reverse_one",
        "remember_login_cookie_lifetime": 604800,
        "session_lifetime": 259200,
        "session_keepalive": true,
        "maintenance": false,
        "logfile": "\/nextcloud_data\/nextcloud.log",
        "appstore.experimental.enabled": true,
        "debug": false,
        "trashbin_retention_obligation": "auto",
        "memcache.local": "\\OC\\Memcache\\Memcached",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "mail_from_address": "cloud",
        "mail_smtpmode": "php",
        "mail_domain": "jamm.me",
        "updater.release.channel": "stable",
        "updater.secret": "***REMOVED SENSITIVE VALUE***"
    }
}

Are you using external storage, if yes which one: I can't because of this problem

Are you using encryption: no

Are you using an external user-backend, if yes which one: No

Client configuration

Browser:
50.0.2
Operating system:
Win 7 x86_64

Logs

Nextcloud log (data/nextcloud.log)

Nextcloud log

``` {"reqId":"ui3aRT\/\/bCmDxYljoFRE","remoteAddr":"1.2.3.4","app":"index","message":"Exception: {\"Exception\":\"TypeError\",\"Message\":\"Argument 1 passed to OC\\\\App\\\\DependencyAnalyzer::analyze() must be of the type array, null given, called in \\\/var\\\/www\\\/nextcloud\\\/lib\\\/private\\\/legacy\\\/app.php on line 1339\",\"Code\":0,\"Trace\":\"#0 \\\/var\\\/www\\\/nextcloud\\\/lib\\\/private\\\/legacy\\\/app.php(1339): OC\\\\App\\\\DependencyAnalyzer->analyze(NULL)\\n#1 \\\/var\\\/www\\\/nextcloud\\\/lib\\\/private\\\/legacy\\\/app.php(385): OC_App::checkAppDependencies(Object(OC\\\\AllConfig), Object(OC\\\\L10N\\\\L10N), NULL)\\n#2 \\\/var\\\/www\\\/nextcloud\\\/settings\\\/ajax\\\/enableapp.php(44): OC_App->enable('files_external', NULL)\\n#3 \\\/var\\\/www\\\/nextcloud\\\/lib\\\/private\\\/Route\\\/Route.php(155) : runtime-created function(1): require_once('\\\/var\\\/www\\\/nextcl...')\\n#4 [internal function]: __lambda_func()\\n#5 \\\/var\\\/www\\\/nextcloud\\\/lib\\\/private\\\/Route\\\/Router.php(299): call_user_func('\\\\x00lambda_448', Array)\\n#6 \\\/var\\\/www\\\/nextcloud\\\/lib\\\/base.php(1010): OC\\\\Route\\\\Router->match('\\\/settings\\\/ajax\\\/...')\\n#7 \\\/var\\\/www\\\/nextcloud\\\/index.php(40): OC::handleRequest()\\n#8 {main}\",\"File\":\"\\\/var\\\/www\\\/nextcloud\\\/lib\\\/private\\\/App\\\/DependencyAnalyzer.php\",\"Line\":55}","level":3,"time":"2016-12-14T17:14:31+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"Revertron","version":"11.0.0.10"} ```

And from another try

``` {"reqId":"x+AXvYKK3tUitEgFvbim","remoteAddr":"1.2.3.4","app":"no app in context","message":"Exception: {\"Exception\":\"Error\",\"Message\":\"Class 'OCA\\\\Files_External\\\\AppInfo\\\\Application' not found\",\"Code\":0,\"Trace\":\"#0 \\\/var\\\/www\\\/nextcloud\\\/lib\\\/private\\\/legacy\\\/app.php(214): require_once()\\n#1 \\\/var\\\/www\\\/nextcloud\\\/lib\\\/private\\\/legacy\\\/app.php(155): OC_App::requireAppFile('files_external')\\n#2 \\\/var\\\/www\\\/nextcloud\\\/lib\\\/private\\\/legacy\\\/app.php(125): OC_App::loadApp('files_external')\\n#3 \\\/var\\\/www\\\/nextcloud\\\/ocs\\\/v1.php(56): OC_App::loadApps()\\n#4 \\\/var\\\/www\\\/nextcloud\\\/ocs\\\/v2.php(23): require_once('\\\/var\\\/www\\\/nextcl...')\\n#5 {main}\",\"File\":\"\\\/var\\\/www\\\/nextcloud\\\/apps\\\/files_external\\\/appinfo\\\/app.php\",\"Line\":35}","level":3,"time":"2016-12-14T17:42:29+00:00","method":"GET","url":"\/ocs\/v2.php\/apps\/notifications\/api\/v2\/notifications","user":"Revertron","version":"11.0.0.10"} ```

[nickvergessen]

@icewind1991

[Revertron]

Any news on this?

[nickvergessen]

Are you sure you updated the code of the app as well?

[Revertron]

Just redownloaded the NC archive, deleted apps/files_external on the server, extracted whole 'files_external' directory to it's place, adjusted owner and tried to enable.
No luck again. The first time the button becomed "Enabling app..." for 10-15 seconds, and then becomed "Disable".
Now, if I try again, it becomes "Enabling app..." on 2 seconds and then shown "Error while enabling app" message.

[rkantos]

Getting same problems while trying to enable external authentication app! I just have a fresh install of NC11.0.1. Do you @Revertron have the same problem if trying to install anything else? Nothing I can find in the logs that would make sense for this kind of error..

[Grimeton]

I figured it out.

At least in my case memcache broke it. At first I figured maybe memcache has old data stored. So I restarted it and reenabled the files_external app again. Still the same problem.

So I downloaded a clean nextcloud 11.0.1 and started to test. I had another app in mind that breaks something but even with only the default apps enabled it didn't work. So then I thought about memcache.

Just disabling memcache in the config doesn't help. This is what I did:

• mv old nextloud out of the way on the filesystem (nc -> nc_old)
• keep the database in place
• download clean nextcloud and put it in place in the "nc" folder
• copy the config over from the old version
• edit the config and disable memcached in the config
• go to the website, login, enable external storage and enjoy

If you get errors when enabling external storage connect to your database and drop the PREFIX_external_* tables. Also delete all values from PREFIX_appconfig where the appid is "files_external".

After that enable it again.

I now tested it with redis and redis does not break it. So I guess for now redis is the way to go.

Cu