After the first installation on Windows 10 and restart Nextcloud has stopped working with the following message:
If you can make it happen again, try to enable logfiles first:
https://docs.nextcloud.com/desktop/3.5/troubleshooting.html
Without more information, it is not possible to identify the problem.
The error is reproduced on every Nextcloud launch. The log file is not updated. Below is an extract from the last available log.
2022-05-11 09:28:32:382 [ info nextcloud.gui.application C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\application.cpp:543 ]: ################## "Nextcloud" locale: "en_US" ui_lang: QVariant(Invalid) version: "3.5.0stable-Win64 (build 20220502)" os: "Windows 10 Version 1607"
2022-05-11 09:28:32:382 [ info nextcloud.gui.application C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\application.cpp:548 ]: Arguments: ("C:\\Program Files\\Nextcloud\\nextcloud.exe")
2022-05-11 09:28:32:413 [ info nextcloud.gui.application C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\application.cpp:772 ]: Using "en_US" translation
2022-05-11 09:28:32:648 [ warning plugins C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\common\vfs.cpp:188 ]: Plugin failed to load: "Cannot load library C:\\Program Files\\Nextcloud\\nextcloudsync_vfs_cfapi.dll: The specified module could not be found."
2022-05-11 09:28:32:819 [ warning plugins C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\common\vfs.cpp:188 ]: Plugin failed to load: "Cannot load library C:\\Program Files\\Nextcloud\\nextcloudsync_vfs_cfapi.dll: The specified module could not be found."
2022-05-11 09:28:32:819 [ info nextcloud.gui.application C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\application.cpp:319 ]: VFS suffix plugin is available
2022-05-11 09:28:32:819 [ debug nextcloud.gui.socketapi C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\socketapi\socketapi.cpp:277 ] [ OCC::SocketApi::SocketApi ]: creating "//./pipe" true
2022-05-11 09:28:32:819 [ info nextcloud.gui.socketapi C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\socketapi\socketapi.cpp:287 ]: server started, listening at "\\\\.\\pipe\\nextcloud-admin174"
2022-05-11 09:28:32:819 [ info nextcloud.gui.folder.manager C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\folderman.cpp:61 ]: setting remote poll timer interval to 30000 msec
2022-05-11 09:28:32:819 [ info nextcloud.gui.account.manager C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\accountmanager.cpp:126 ]: Migrate: restoreFromLegacySettings, checking settings group "Nextcloud"
2022-05-11 09:28:32:819 [ info nextcloud.gui.account.manager C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\accountmanager.cpp:142 ]: Migrate: checking old config "C:/Users/admin174/AppData/Roaming/ownCloud/owncloud.cfg"
2022-05-11 09:28:32:866 [ info nextcloud.gui.folder.manager C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\folderman.cpp:342 ]: Setup folders from "C:/Users/admin174/AppData/Roaming/Nextcloud/folders" (migration)
2022-05-11 09:28:32:866 [ info nextcloud.sync.clientproxy C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\libsync\clientproxy.cpp:103 ]: Set proxy configuration to use the preferred system proxy for http tcp connections
2022-05-11 09:28:32:929 [ debug nextcloud.gui.updater C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\updater\updater.cpp:138 ] [ OCC::Updater::create ]: QUrl("https://updates.nextcloud.org/client/?version=3.5.0.20220502&platform=win32&osRelease=windows&osVersion=10&kernelVersion=10.0.14393&oem=Nextcloud&buildArch=x86_64¤tArch=x86_64&versionsuffix=stable-Win64&updatesegment=77&msi=true")
2022-05-11 09:28:55:716 [ warning default unknown:0 ]: QString::arg: Argument missing: "Search result skeleton." , 0
2022-05-11 09:28:55:716 [ warning default unknown:0 ]: QString::arg: Argument missing: "Search result skeleton." , 1
2022-05-11 09:28:55:716 [ warning default unknown:0 ]: QString::arg: Argument missing: "Search result skeleton." , 2
2022-05-11 09:28:55:717 [ warning default unknown:0 ]: QString::arg: Argument missing: "Search result skeleton." , 3
2022-05-11 09:28:55:718 [ warning default unknown:0 ]: QString::arg: Argument missing: "Search result skeleton." , 4
2022-05-11 09:28:55:718 [ warning default unknown:0 ]: QString::arg: Argument missing: "Search result skeleton." , 5
2022-05-11 09:28:55:718 [ warning default unknown:0 ]: QString::arg: Argument missing: "Search result skeleton." , 6
2022-05-11 09:28:55:718 [ warning default unknown:0 ]: QString::arg: Argument missing: "Search result skeleton." , 7
2022-05-11 09:28:55:718 [ warning default unknown:0 ]: QString::arg: Argument missing: "Search result skeleton." , 8
2022-05-11 09:28:55:719 [ warning default unknown:0 ]: QString::arg: Argument missing: "Search result skeleton." , 9
2022-05-11 09:28:55:799 [ warning default qrc:/qml/src/gui/tray/Window.qml:146 ]: qrc:/qml/src/gui/tray/Window.qml:146: TypeError: Cannot read property 'headerColor' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:379 ]: qrc:/qml/src/gui/tray/Window.qml:379: TypeError: Cannot read property 'avatar' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:394 ]: qrc:/qml/src/gui/tray/Window.qml:394: TypeError: Cannot read property 'headerColor' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:388 ]: qrc:/qml/src/gui/tray/Window.qml:388: TypeError: Cannot read property 'isConnected' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:400 ]: qrc:/qml/src/gui/tray/Window.qml:400: TypeError: Cannot read property 'isConnected' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:415 ]: qrc:/qml/src/gui/tray/Window.qml:415: TypeError: Cannot read property 'statusIcon' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:413 ]: qrc:/qml/src/gui/tray/Window.qml:413: TypeError: Cannot read property 'isConnected' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:441 ]: qrc:/qml/src/gui/tray/Window.qml:441: TypeError: Cannot read property 'headerTextColor' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:439 ]: qrc:/qml/src/gui/tray/Window.qml:439: TypeError: Cannot read property 'name' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:449 ]: qrc:/qml/src/gui/tray/Window.qml:449: TypeError: Cannot read property 'isConnected' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:458 ]: qrc:/qml/src/gui/tray/Window.qml:458: TypeError: Cannot read property 'statusEmoji' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:456 ]: qrc:/qml/src/gui/tray/Window.qml:456: TypeError: Cannot read property 'statusEmoji' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:470 ]: qrc:/qml/src/gui/tray/Window.qml:470: TypeError: Cannot read property 'headerTextColor' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:466 ]: qrc:/qml/src/gui/tray/Window.qml:466: TypeError: Cannot read property 'statusMessage' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:464 ]: qrc:/qml/src/gui/tray/Window.qml:464: TypeError: Cannot read property 'statusMessage' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:478 ]: qrc:/qml/src/gui/tray/Window.qml:478: TypeError: Cannot read property 'headerTextColor' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:512 ]: qrc:/qml/src/gui/tray/Window.qml:512: TypeError: Cannot read property 'hasLocalFolder' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:520 ]: qrc:/qml/src/gui/tray/Window.qml:520: TypeError: Cannot read property 'isConnected' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:519 ]: qrc:/qml/src/gui/tray/Window.qml:519: TypeError: Cannot read property 'hasLocalFolder' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:539 ]: qrc:/qml/src/gui/tray/Window.qml:539: TypeError: Cannot read property 'headerColor' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:531 ]: qrc:/qml/src/gui/tray/Window.qml:531: TypeError: Cannot read property 'isConnected' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:514 ]: qrc:/qml/src/gui/tray/Window.qml:514: TypeError: Cannot read property 'headerTextColor' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:561 ]: qrc:/qml/src/gui/tray/Window.qml:561: TypeError: Cannot read property 'serverHasTalk' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:563 ]: qrc:/qml/src/gui/tray/Window.qml:563: TypeError: Cannot read property 'headerTextColor' of null
2022-05-11 09:28:55:800 [ warning default qrc:/qml/src/gui/tray/Window.qml:574 ]: qrc:/qml/src/gui/tray/Window.qml:574: TypeError: Cannot read property 'headerTextColor' of null
2022-05-11 09:28:55:801 [ warning default qrc:/qml/src/gui/tray/Window.qml:653 ]: qrc:/qml/src/gui/tray/Window.qml:653: TypeError: Cannot read property 'unifiedSearchResultsListModel' of null
2022-05-11 09:28:55:801 [ warning default qrc:/qml/src/gui/tray/Window.qml:652 ]: qrc:/qml/src/gui/tray/Window.qml:652: TypeError: Cannot read property 'isConnected' of null
2022-05-11 09:28:55:801 [ warning default qrc:/qml/src/gui/tray/Window.qml:651 ]: qrc:/qml/src/gui/tray/Window.qml:651: TypeError: Cannot read property 'unifiedSearchResultsListModel' of null
2022-05-11 09:28:55:801 [ warning default qrc:/qml/src/gui/tray/Window.qml:661 ]: qrc:/qml/src/gui/tray/Window.qml:661: TypeError: Cannot read property 'unifiedSearchResultsListModel' of null
2022-05-11 09:28:55:801 [ warning default qrc:/qml/src/gui/tray/Window.qml:681 ]: qrc:/qml/src/gui/tray/Window.qml:681: TypeError: Cannot read property 'unifiedSearchResultsListModel' of null
2022-05-11 09:28:55:801 [ warning default qrc:/qml/src/gui/tray/Window.qml:679 ]: qrc:/qml/src/gui/tray/Window.qml:679: TypeError: Cannot read property 'unifiedSearchResultsListModel' of null
2022-05-11 09:28:55:801 [ warning default qrc:/qml/src/gui/tray/Window.qml:708 ]: qrc:/qml/src/gui/tray/Window.qml:708: TypeError: Cannot read property 'unifiedSearchResultsListModel' of null
2022-05-11 09:28:55:801 [ warning default qrc:/qml/src/gui/tray/Window.qml:754 ]: qrc:/qml/src/gui/tray/Window.qml:754: TypeError: Cannot read property 'unifiedSearchResultsListModel' of null
2022-05-11 09:28:55:801 [ warning default qrc:/qml/src/gui/tray/Window.qml:660 ]: qrc:/qml/src/gui/tray/Window.qml:660: TypeError: Cannot read property 'unifiedSearchResultsListModel' of null
2022-05-11 09:28:55:801 [ warning default qrc:/qml/src/gui/tray/Window.qml:801 ]: qrc:/qml/src/gui/tray/Window.qml:801: ReferenceError: activityModel is not defined
2022-05-11 09:28:55:802 [ info nextcloud.gui.application C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\owncloudgui.cpp:151 ]: No configured folders yet, starting setup wizard
2022-05-11 09:28:56:068 [ warning plugins C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\common\vfs.cpp:188 ]: Plugin failed to load: "Cannot load library C:\\Program Files\\Nextcloud\\nextcloudsync_vfs_cfapi.dll: The specified module could not be found."
2022-05-11 09:28:56:083 [ warning plugins C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\common\vfs.cpp:188 ]: Plugin failed to load: "Cannot load library C:\\Program Files\\Nextcloud\\nextcloudsync_vfs_cfapi.dll: The specified module could not be found."
2022-05-11 09:28:56:099 [ warning plugins C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\common\vfs.cpp:188 ]: Plugin failed to load: "Cannot load library C:\\Program Files\\Nextcloud\\nextcloudsync_vfs_cfapi.dll: The specified module could not be found."
2022-05-11 09:28:56:099 [ info nextcloud.gui.wizard.webviewpage C:\Users\sysadmin\AppData\Local\Temp\2\windows-10062\client-building\desktop\src\gui\wizard\webviewpage.cpp:24 ]: Time for a webview!
2022-05-11 09:28:56:661 [ debug default unknown:0 ] [ unknown ]: Use of deprecated not thread-safe setter, use setUrlRequestInterceptor instead.
2022-05-11 09:28:56:677 [ warning default unknown:0 ]: Please register the custom scheme 'nc' via QWebEngineUrlScheme::registerScheme() before installing the custom scheme handler.e
So the log is from an earlier state?
Remove the Nextclouf.cfg from
C:\Users\<user>\AppData\Roaming\Nextcloud and configure Nextcloud again.
It seems, that there is an invalid setting, which leads to a crash and Startup.