And for completeness, I have managed to reproduce the issue with a simple standalone example that doesn’t involve Ubuntu.Web:
= Foo.qml = import QtQuick 2.4 import Ubuntu.Components 1.3 Item { property ActionList a } = test.qml = import QtQuick 2.4 import Ubuntu.Components 1.2 Foo { a: ActionList {} } With those two files in the same folder, loading test.qml with qmlscene produces the following error: file:///tmp/test.qml:5 Cannot assign object to property -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu. https://bugs.launchpad.net/bugs/1484437 Title: HERE maps doesn't start Status in Canonical System Image: In Progress Status in webbrowser-app package in Ubuntu: In Progress Bug description: current build number: 96 device name: krillin channel: ubuntu-touch/rc-proposed/bq-aquaris.en (and other devices) com.nokia.heremaps 1.0.5 Here maps doesn't start (blank page) Log file contains: """"" Invalid webapps installation Empty path in webapps model search path update request qml: Loading webview on /home/phablet/.local/share/com.nokia.heremaps Invalid webapps installation QQmlExpression: Expression file:///usr/share/webbrowser-app/webcontainer/WebApp.qml:220:25 depends on non-NOTIFYable properties: unity::action::qml::ActionManager::globalContext Empty path in webapps model search path update request qml: Loading custom webview from file:///custom/click/com.nokia.heremaps/1.0.5/webview-override.qml file:///custom/click/com.nokia.heremaps/1.0.5/webview-override.qml:66:5: Type WebViewImpl unavailable file:///custom/click/com.nokia.heremaps/1.0.5/lib/WebViewImpl.qml:68:23: Cannot assign object to property file:///usr/share/webbrowser-app/webcontainer/webapp-container.qml:167: TypeError: Cannot read property 'context' of null file:///usr/share/webbrowser-app/webcontainer/WebApp.qml:205: TypeError: Cannot read property 'visible' of null """"" Full log attached. To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1484437/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp