Trying to install App fails on 11.0.1.2

[mddeff]

Steps to reproduce

1. Login with admin user
2. Try to add an App via the app manager(U2F authentication, for example)

Expected behaviour

The app should be installed.

Actual behaviour

The installation fails with App "" cannot be installed because appinfo file cannot be read. in the gui.

Errors in the logs start with:

mkdir(): Permission denied at /var/www/html/nextcloud/lib/private/legacy/helper.php#182

but continue on with a bunch of failed to copy/cailed to open stream

copy(/twofactor_u2f/twofactor_u2f/AUTHORS.md): failed to open stream: No such file or directory at /var/www/html/nextcloud/lib/private/legacy/helper.php#191

Server configuration

Operating system:
CentOS 7.3.1611

Web server:
Apache 2.4.6-45

Database:
MariaDB 5.5.47-1

PHP version:
PHP 7.0.16

Nextcloud version: (see Nextcloud admin page)
11.0.1 (stable)

Updated from an older Nextcloud/ownCloud or fresh install:
Updated from OC 9.1.x -> NC 10.0.x

Where did you install Nextcloud from:
Zip pulled from NC website

Signing status:

Signing status

No errors have been found.

List of activated apps:

App list

Enabled:                           
  - activity: 2.4.1                
  - comments: 1.1.0                
  - dav: 1.1.1                     
  - external: 1.2                  
  - federatedfilesharing: 1.1.1    
  - federation: 1.1.1              
  - files: 1.6.1                   
  - files_external: 1.1.2          
  - files_pdfviewer: 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            
  - logreader: 2.0.0               
  - lookup_server_connector: 1.0.0 
  - nextcloud_announcements: 1.0   
  - notifications: 1.0.1           
  - password_policy: 1.1.0         
  - provisioning_api: 1.1.0        
  - serverinfo: 1.1.1              
  - sharebymail: 1.0.1             
  - 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      
  - user_external: 0.4             
  - user_ldap: 1.1.1               
  - workflowengine: 1.1.1          
Disabled:                          
  - admin_audit                    
  - encryption                     
  - files_accesscontrol            
  - files_automatedtagging         
  - files_retention                
  - gallery                        
  - user_saml                      

The content of config/config.php:

Config report

{
    "system": {
        "instanceid": "oc0ebendcxhy",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_proxies": [
            "192.168.1.2",
            "proxy.zeroent.net"
        ],
        "trusted_domains": [
            "192.168.1.1",
            "nextcloud.zeroent.net"
        ],
        "datadirectory": "\/var\/www\/html\/nextcloud\/data",
        "overwrite.cli.url": "http:\/\/192.168.1.1\/owncloud",
        "dbtype": "mysql",
        "version": "11.0.1.2",
        "dbname": "owncloud",
        "dbhost": "192.168.1.3",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "logtimezone": "UTC",
        "installed": true,
        "mail_smtpmode": "php",
        "ldapIgnoreNamingRules": false,
        "appstoreenabled": false,
        "maintenance": false,
        "loglevel": 1,
        "updatechecker": false,
        "theme": "",
        "ldapProviderFactory": "\\OCA\\User_LDAP\\LDAPProviderFactory",
        "updater.secret": "***REMOVED SENSITIVE VALUE***",
        "memcache.local": "\\OC\\Memcache\\APCu"
    }
}

Are you using external storage, if yes which one: local/smb/sftp/...
/var/www/html/nextcloud/data is a NFS store on another server, no NextCloud External Storage (for now)

Are you using encryption: yes/no
no

Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...
Yes, Active Directory

LDAP configuration (delete this part if not used)

LDAP config

+-------------------------------+------------------------------------------------
| Configuration                 |                                                
+-------------------------------+------------------------------------------------
| hasMemberOfFilterSupport      | 1                                              
| hasPagedResultSupport         |                                                
| homeFolderNamingRule          |                                                
| lastJpegPhotoLookup           | 0                                              
| ldapAgentName                 | ***                                            
| ldapAgentPassword             | ***                                            
| ldapAttributesForGroupSearch  |                                                
| ldapAttributesForUserSearch   |                                                
| ldapBackupHost                |                                                
| ldapBackupPort                |                                                
| ldapBase                      | ***                                            
| ldapBaseGroups                | ***                                            
| ldapBaseUsers                 | ***                                            
| ldapCacheTTL                  | 600                                            
| ldapConfigurationActive       | 1                                              
| ldapDynamicGroupMemberURL     |                                                
| ldapEmailAttribute            | mail                                           
| ldapExperiencedAdmin          | 0                                              
| ldapExpertUUIDGroupAttr       |                                                
| ldapExpertUUIDUserAttr        |                                                
| ldapExpertUsernameAttr        |                                                
| ldapGroupDisplayName          | cn                                             
| ldapGroupFilter               | (&(|(objectclass=group))(|(cn=***)(cn=***)))   
| ldapGroupFilterGroups         | ***;***                                        
| ldapGroupFilterMode           | 0                                              
| ldapGroupFilterObjectclass    | group                                          
| ldapGroupMemberAssocAttr      | uniqueMember                                   
| ldapHost                      | dc.zeroent.net                                 
| ldapIgnoreNamingRules         |                                                
| ldapLoginFilter               | ***                                            
| ldapLoginFilterAttributes     |                                                
| ldapLoginFilterEmail          | 0                                              
| ldapLoginFilterMode           | 1                                              
| ldapLoginFilterUsername       | 1                                              
| ldapNestedGroups              | 0                                              
| ldapOverrideMainServer        |                                                
| ldapPagingSize                | 500                                            
| ldapPort                      | 389                                            
| ldapQuotaAttribute            |                                                
| ldapQuotaDefault              |                                                
| ldapTLS                       | 0                                              
| ldapUserDisplayName           | displayName                                    
| ldapUserDisplayName2          |                                                
| ldapUserFilter                | ***
| ldapUserFilterGroups          | ***                                            
| ldapUserFilterMode            | 1                                              
| ldapUserFilterObjectclass     | person                                         
| ldapUuidGroupAttribute        | auto                                           
| ldapUuidUserAttribute         | auto                                           
| turnOffCertCheck              | 0                                              
| turnOnPasswordChange          | 0                                              
| useMemberOfToDetectMembership | 1                                              
+-------------------------------+------------------------------------------------

Client configuration

Browser:
Chrome

Operating system:
Windows 8.1

Logs

Nextcloud log (data/nextcloud.log)

Nextcloud log

{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"mkdir(): Permission denied at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#182","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"mkdir(): No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#182","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/AUTHORS.md): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/CHANGELOG.md): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/COPYING): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/README.md): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"mkdir(): No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#182","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/appinfo\/app.php): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/appinfo\/autoload.php): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/appinfo\/database.xml): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/appinfo\/info.xml): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/appinfo\/routes.php): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/appinfo\/signature.json): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"mkdir(): No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#182","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/css\/style.css): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"mkdir(): No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#182","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/img\/app-dark.svg): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/img\/app.svg): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"mkdir(): No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#182","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/js\/challenge.js): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/js\/settings.js): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/js\/settingsview.js): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"mkdir(): No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#182","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/js\/vendor\/u2f-api.js): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"mkdir(): No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#182","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/cs_CZ.js): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/cs_CZ.json): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/de.js): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/de.json): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/de_DE.js): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/de_DE.json): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/es.js): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/es.json): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/fr.js): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/fr.json): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/hu_HU.js): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/hu_HU.json): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/it.js): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/it.json): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/l10n\/ja.js): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:53+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
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{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/vendor\/yubico\/u2flib-server\/apigen.neon): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:54+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/vendor\/yubico\/u2flib-server\/do-source-release.sh): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:54+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"mkdir(): No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#182","level":3,"time":"2017-02-17T17:36:54+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"mkdir(): No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#182","level":3,"time":"2017-02-17T17:36:54+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"PHP","message":"copy(\/twofactor_u2f\/twofactor_u2f\/vendor\/yubico\/u2flib-server\/src\/u2flib_server\/U2F.php): failed to open stream: No such file or directory at \/var\/www\/html\/nextcloud\/lib\/private\/legacy\/helper.php#191","level":3,"time":"2017-02-17T17:36:54+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}
{"reqId":"WKc0tYYkYv@Bib6WOOMXmQAAAAA","remoteAddr":"***","app":"core","message":"App \"\" cannot be installed because appinfo file cannot be read.","level":3,"time":"2017-02-17T17:36:54+00:00","method":"POST","url":"\/index.php\/settings\/ajax\/enableapp.php","user":"admin","version":"11.0.1.2"}

[nickvergessen]

Seems like your web user does not have permissions to create folders and write into the apps/ directory.

As a second hint, in your config.php, you should change overwrite.cli.url to http://nextcloud.zeroent.net/ownCloud or whatever URL you use to access the installation.

[mddeff]

The apache user has no issues writing to /var/www/html/nextcloud/apps. Permissions/ownership are set correctly, running sudo -u apache mkdir /var/www/html/nextcloud/apps/foobar runs just fine. Selinux is enabled but the contexts are set correctly.

drwxr-x---. apache apache unconfined_u:object_r:httpd_sys_rw_content_t:s0 apps

No selinux denials when the app tries to install. I'm also not entirely convinced that its actually trying to write to /var/www/html/nextcloud/apps, is there a way to crank up logging level to the point where it actually tells you what directory it tried to make? Rather than just failing saying "I couldn't make some directory"?

Also, doesn't the integrity check/security&setup warnings pick up if perms aren't set right? (Both passed with no issues)

Thanks for the tip on the overwrite.cli.url, just hadn't gotten around to setting it.