tst_Sanity: 'object.data()' returned FALSE, Invalid property assignment: "data" is a read-only property

agent:2019/05/07 10:13:31 build.go:305: [make check -j1] 900 900
agent:2019/05/07 10:13:31 build.go:197: /home/qt/work/qt/qtquickcontrols2/tests/auto/sanity/target_wrapper.sh  ./tst_sanity -o /home/qt/work/testresults/tests/auto/sanity309698372,xml -o -,txt
agent:2019/05/07 10:13:31 build.go:197: ********* Start testing of tst_Sanity *********
agent:2019/05/07 10:13:31 build.go:197: Config: Using QtTest library 5.14.0, Qt 5.14.0 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 8.2.0)
agent:2019/05/07 10:13:31 build.go:197: PASS   : tst_Sanity::initTestCase()
...
agent:2019/05/07 10:13:31 build.go:197: QWARN  : tst_Sanity::attachedObjects(calendar/DayOfWeekRow.qml) QQmlComponent: Component is not ready
agent:2019/05/07 10:13:31 build.go:197: FAIL!  : tst_Sanity::attachedObjects(calendar/DayOfWeekRow.qml) 'object.data()' returned FALSE. (file:///home/qt/work/install/qml/Qt/labs/calendar/DayOfWeekRow.qml:65 Invalid property assignment: "data" is a read-only property
agent:2019/05/07 10:13:31 build.go:197: )
agent:2019/05/07 10:13:31 build.go:197:    Loc: [tst_sanity.cpp(350)]
agent:2019/05/07 10:13:31 build.go:197: QWARN  : tst_Sanity::attachedObjects(calendar/MonthGrid.qml) QQmlComponent: Component is not ready
agent:2019/05/07 10:13:31 build.go:197: FAIL!  : tst_Sanity::attachedObjects(calendar/MonthGrid.qml) 'object.data()' returned FALSE. (file:///home/qt/work/install/qml/Qt/labs/calendar/MonthGrid.qml:67 Invalid property assignment: "data" is a read-only property
agent:2019/05/07 10:13:31 build.go:197: )
agent:2019/05/07 10:13:31 build.go:197:    Loc: [tst_sanity.cpp(350)]
agent:2019/05/07 10:13:31 build.go:197: QWARN  : tst_Sanity::attachedObjects(calendar/WeekNumberColumn.qml) QQmlComponent: Component is not ready
agent:2019/05/07 10:13:31 build.go:197: FAIL!  : tst_Sanity::attachedObjects(calendar/WeekNumberColumn.qml) 'object.data()' returned FALSE. (file:///home/qt/work/install/qml/Qt/labs/calendar/WeekNumberColumn.qml:65 Invalid property assignment: "data" is a read-only property
agent:2019/05/07 10:13:31 build.go:197: )
agent:2019/05/07 10:13:31 build.go:197:    Loc: [tst_sanity.cpp(350)]
...
agent:2019/05/07 10:13:33 build.go:197: PASS   : tst_Sanity::cleanupTestCase()
agent:2019/05/07 10:13:33 build.go:197: Totals: 1084 passed, 89 failed, 0 skipped, 2 blacklisted, 1602ms
agent:2019/05/07 10:13:33 build.go:197: ********* Finished testing of tst_Sanity *********