Sounds like you found a bug in the server side code of the QML inspector. To
check for that, Go to Options pane, Debugger, and de-select "Show QML object
tree". Does the crash still occur?
In any case, it would be great if you could file a bug on
bugreports.qt-project.org.
Regards
Kai
PS: Sorry for top-posting ...
From: interest-bounces+kai.koehne=digia....@qt-project.org
[interest-bounces+kai.koehne=digia....@qt-project.org] on behalf of Rogers Nate
[nate.rog...@raymondcorp.com]
Sent: 25 September 2013 19:35
To: interest@qt-project.org
Subject: [Interest] Debugger exits unexpectedly while debugging simple qt quick
app
I have my project set to debug qml only and I am trying to figure out why the
debugger exits unexpectedly when I click on one of my .qml files in qtcreator.
This is the order which it happens every time, first I press F5 to start
debugging
and my app is deployed to my target board successfully, then I touch the touch
screen to cause the stackview to load the main menu, then I double click on the
LeftHeaderButton.qml file in qtcreator and the app just stops running and the
debugger shuts down.
I have no idea why this is happening so any help would be greatly appreciated!
Also the app only dies like this if I am debugging, if the debugger is not
connected I can run all day.
Here are some details about my setup:
Dev Board: TI am335x starter kit running TI SDK 6.0
Qt Versions: Qt 5.1.1 –platform eglfs –plugin tslib and
QtCreator 2.8.1
Host: Ubuntu 12.04 LTS running in VMware on Windows 7 32bit
Below are my qml files and the debugger log:
Main.cpp
#include <QtGui/QGuiApplication>
#include "qtquick2applicationviewer.h"
// Create the main UI view
QtQuick2ApplicationViewer *view;
int main(int argc, char *argv[])
{
// Create the main UI view
QGuiApplication app(argc, argv);
// Create the main UI view
view = new QtQuick2ApplicationViewer;
// Set the starting QML screen
view->setSource(QUrl("qrc:/main.qml"));
// Hide the cursor
QPixmap nullCursor(16, 16);
nullCursor.fill(Qt::transparent);
app.setOverrideCursor(QCursor(nullCursor));
// Display the UI
view->showExpanded();
return app.exec();
}
Main.qml
import QtQuick 2.1
import QtQuick.Controls 1.0
Rectangle
{
id: main
width: 480
height: 272
color: "#333132"
// Define signals
signal onGoToHome()
signal onOpenPage(string fileName)
signal onClosePage()
Rectangle
{
id: header
height: 55
gradient: Gradient
{
GradientStop
{
position: 0
color: "#d1d3d4"
}
GradientStop
{
position: 1
color: "#f1f2f2"
}
}
anchors.right: parent.right
anchors.rightMargin: 0
anchors.left: parent.left
anchors.leftMargin: 0
anchors.top: parent.top
anchors.topMargin: 0
}
LeftHeaderButton
{
id: menuButton
//text: "Menu"
anchors.top: parent.top
anchors.topMargin: 0
anchors.left: parent.left
anchors.leftMargin: 0
focus: true
KeyNavigation.right: leftheaderbutton2
onClicked:
{
main.color = "black"
}
}
DateTime
{
id: dateTime
anchors.right: parent.right
anchors.rightMargin: 60
anchors.top: parent.top
anchors.topMargin: 0
}
StackView
{
id: screenStack
width: 480
height: 212
anchors.top: redBar.bottom
anchors.topMargin: 0
initialItem: Qt.resolvedUrl("DashboardScreen.qml")
}
Image
{
id: redBar
x: 0
y: 55
source: "images/Header_Red_Bar.png"
}
Image
{
id: redBarShadow
x: 0
y: 60
source: "images/Header_Drop_Shadow.png"
}
// Setup the connections for any signals
Connections
{
// Setup the page stack
target: screenStack.currentItem
onOpenPage:
{
// Update to the new screen
screenStack.push(Qt.resolvedUrl(fileName))
}
onGoToHome:
{
// Unwind the screen stack
screenStack.pop(1)
}
onClosePage:
{
// Remove the current screen from the stack
screenStack.pop()
}
}
LeftHeaderButton
{
id: leftheaderbutton2
//text: "Menu"
anchors.top: parent.top
anchors.topMargin: 0
anchors.right: parent.right
anchors.rightMargin: 0
focus: true
KeyNavigation.right: menuButton
onClicked:
{
main.color = "yellow"
}
}
}
DashboardScreen.qml
import QtQuick 2.1
Item
{
width: 480
height: 212
// Define signals
signal openPage(string fileName)
Rectangle
{
id: background
anchors.fill: parent
color: "red"
MouseArea
{
anchors.fill: parent
onClicked:
{
openPage("MainMenu.qml")
}
}
}
}
MainMenu.qml
import QtQuick 2.1
Item
{
width: 480
height: 212
// Define signals
signal closePage()
Rectangle
{
anchors.fill: parent
color: "blue"
MouseArea
{
anchors.fill: parent
onClicked:
{
closePage()
}
}
}
}
LeftHeaderButton.qml
import QtQuick 2.1
FocusScope
{
id: button
// Define signals
signal clicked
signal focusRecieved
// Expose properties to parent
//property alias text: label.text
//property alias fontSize: label.fontSize
//property alias icon: labelImage.source
// Define fonts
//FontLoader { id: universLTStd57CnFont; source:
"fonts/UniversLTStd57Cn.otf" }
// FocusScope needs to bind to visual properties of the children
x: background.x
y: background.y
width: background.width
height: background.height
Rectangle
{
// Setup the background properties
id: background
x: 0
y: 0
width: 118
height: 55
smooth: true
focus: true
anchors.centerIn: parent
gradient: Gradient {
GradientStop {
position: 0
color: "#ffffff"
}
GradientStop {
position: 1
color: "#999999"
}
}
onFocusChanged:
{
// Has the button recieved focus?
if (activeFocus)
{
// Yes, emit the focus recieved signal
button.focusRecieved()
}
}
}
Image
{
property string icon: "images/Button_Icon_Menu.png"
id: labelImage
source: icon
x: 28
y: 28
visible: true
}
/*
Text
{
// Define text variables
property int fontSize: 18
x: 55
y: 31
// Setup the button text properties
id: label
font.family: universLTStd57CnFont.name
color: "#ffffff"
text: "Menu"
font.pixelSize: 18
}
*/
Keys.onPressed:
{
// Was the return key pressed?
if (event.key === Qt.Key_Return)
{
// Yes, emit the clicked signal
button.clicked()
}
}
MouseArea
{
anchors.fill:parent
onClicked:
{
// The button was pressed, set the focus on this button
button.focus = true
// Emit the clicked signal
button.clicked()
}
}
}
DateTime.qml
import QtQuick 2.1
Item
{
id: timeRectangle
x: 0
y: 0
width: 160
height: 55
// Define fonts
FontLoader { id: universLTStd57CnFont; source: "fonts/UniversLTStd57Cn.otf"
}
Text
{
id: timeText
y: 33
text: Qt.formatDateTime(new Date(), "h:mm ap MM/dd/yy")
anchors.right: parent.right
anchors.rightMargin: 0
horizontalAlignment: Text.AlignRight
font.pixelSize: 16
font.family: universLTStd57CnFont.name
}
Timer
{
interval: 1000
running: true
repeat: true
onTriggered: timeText.text = Qt.formatDateTime(new Date(), "h:mm ap
MM/dd/yy")
}
}
Debugger Log
sStarting debugger "QmlEngine" for ABI "arm-linux-generic-elf-32bit"...
dStart parameters: 'ProjectBlue (on Remote Device)' mode: 6
dABI: arm-linux-generic-elf-32bit
dLanguages: qml
dDebugger:
/root/DevApps/ti-sdk-6.0/linux-devkit/sysroots/i686-arago-linux/usr/bin/arm-linux-gnueabihf-gdb
dProject: /root/DevApps/projects/ProjectBlue (built:
/root/DevApps/projects/ProjectBlue)
dQML server: 192.168.1.5:0
dRemote: 192.168.1.5:22
dSysroot:
dDebug Source Location:
dSymbol file:
dDumper libraries:
dDebugger settings:
dQmlInspector.FromQml: false (default: false)
dQmlInspector.ShowAppOnTop: false (default: false)
dShowQmlObjectTree: true (default: true)
dAlwaysAdjustModulesColumnWidths: false (default: false)
dAlwaysAdjustThreadsColumnWidths: false (default: false)
dAlwaysAdjustSnapshotsColumnWidths: false (default: false)
dAlwaysAdjustRegistersColumnWidths: false (default: false)
dBreakOnAbort: false (default: false)
dBreakOnFatal: false (default: false)
dBreakOnWarning: false (default: false)
dBreakOnCatch: false (default: false)
dBreakOnThrow: false (default: false)
dSelectedPluginBreakpointsPattern: .* (default: .*)
dLoadGdbInit: true (default: true)
dIgnoreFirstChanceAccessViolation: false (default: false)
dBreakpointCorrection: true (default: true)
dCDB_Console: false (default: false)
dBreakOnCrtDbgReport: false (default: false)
dBreakEvent: (default: )
dSourcePaths: (default: )
dSymbolPaths: (default: )
dAdditionalArguments: (default: )
dUseAddressInStackView: false (default: false)
dUseAddressInBreakpointsView: false (default: false)
dUseToolTipsInBreakpointsView: false (default: false)
dUseToolTipsInLocalsView: true (default: false) ***
dUseToolTips: false (default: false)
dShowThreadNames: true (default: false) ***
dUseCodeModel: true (default: true)
dUseDebuggingHelper: true (default: true)
dRaiseOnInterrupt: true (default: true)
dBreakpointsFullPath: false (default: false)
dSwitchModeOnExit: false (default: false)
dCloseBuffersOnExit: false (default: false)
dVerboseLog: false (default: false)
dLogTimeStamps: false (default: false)
dAutoQuit: false (default: false)
dUseMessageBoxForSignals: true (default: true)
dFontSizeFollowsEditor: false (default: false)
dUseAlternatingRowColours: false (default: false)
dNoPluginBreakpoints: false (default: false)
dAlwaysAdjustBreakpointsColumnWidths: false (default: false)
dAdjustBreakpointLocations: true (default: true)
dSelectedPluginBreakpoints: false (default: false)
dAllPluginBreakpoints: true (default: true)
dEnableReverseDebugging: false (default: false)
dSkipKnownFrames: false (default: false)
dListSourceFiles: false (default: false)
dMaximalStringLength: 10000 (default: 10000)
dAlwaysAdjustLocalsColumnWidths: false (default: false)
dAutoDerefPointers: true (default: true)
dSortStructMembers: true (default: true)
dShowQtNamespace: true (default: true)
dShowStandardNamespace: true (default: true)
dAlwaysAdjustStackColumnWidths: false (default: false)
dMaximalStackDepth: 20 (default: 20)
dIdentifyDebugInfoPackages: false (default: false)
dIntelFlavor: false (default: false)
dMultiInferior: true (default: false) ***
dWarnOnReleaseBuilds: true (default: true)
dTargetAsync: false (default: false)
dUseDynamicType: true (default: true)
dAutoEnrichParameters: true (default: true)
dWatchdogTimeout: 20 (default: 20)
dGdbPostAttachCommands: (default: )
dGdbCustomDumperCommands: (default: )
dGdbStartupCommands: (default: )
dAttemptQuickStart: false (default: false)
dLoadGdbDumpers: true (default: true)
dState changed from DebuggerNotReady(0) to EngineSetupRequested(1) [master]
dQUEUE: SETUP ENGINE
dCALL: SETUP ENGINE
dNOTE: REQUEST REMOTE SETUP
dNOTE: REMOTE SETUP DONE: GDB SERVER PORT: -1 QML PORT 10000
dNOTE: ENGINE SETUP OK
dState changed from EngineSetupRequested(1) to EngineSetupOk(3) [master]
dQUEUE: SETUP INFERIOR
dState changed from EngineSetupOk(3) to InferiorSetupRequested(4) [master]
dQUEUE: SETUP INFERIOR
QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv_open failed
QML debugging is enabled. Only use this in a safe environment.
QIconvCodec::convertToUnicode: using Latin-1 for conversion, iconv_open failed
evdevtouch: Using device /dev/input/event1
min X: 0 max X: 0
min Y: 0 max Y: 0
min pressure: 0 max pressure: 4095
device name: ti-tsc
Protocol type A
EGLFS: Unable to query physical screen size, defaulting to 100 dpi.
EGLFS: To override, set QT_QPA_EGLFS_PHYSICAL_WIDTH and
QT_QPA_EGLFS_PHYSICAL_HEIGHT (in millimeters).
QTsLibMouseHandler "tslib" ""
QML Debugger: Waiting for connection on port 10000...
dCALL: SETUP INFERIOR
dNOTE: INFERIOR SETUP OK
dState changed from InferiorSetupRequested(4) to InferiorSetupOk(6) [master]
dState changed from InferiorSetupOk(6) to EngineRunRequested(7) [master]
dQUEUE: RUN ENGINE
dCALL: RUN ENGINE
sQML Debugger: No application output received in time, trying to connect ...
sQML Debugger: Connecting to debug server 192.168.1.5:10000
sQML Debugger: Resolving host.
sQML Debugger: Connecting to debug server.
sQML Debugger: Connected.
dATTEMPT BREAKPOINT SYNCHRONIZATION
dBREAKPOINTS ARE SYNCHRONIZED
dQScriptDebuggerClient: sending BREAKPOINTS ()
dNOTE: ENGINE RUN AND INFERIOR RUN OK
sRunning.
dState changed from EngineRunRequested(7) to InferiorRunOk(11) [master]
sQML Debugger: Status of 'QmlDebugger' Version: -1 changed to 'unavailable'.
sQML Debugger: Status of 'QDeclarativeObserverMode' Version: -1 changed to
'unavailable'.
sQML Debugger: Status of 'DebugMessages' Version: -1 changed to 'unavailable'.
sQML Debugger: Status of 'QDeclarativeEngine' Version: -1 changed to
'unavailable'.
sQML Debugger: Status of 'V8Debugger' Version: -1 changed to 'unavailable'.
sQML Debugger: Status of 'QmlInspector' Version: -1 changed to 'unavailable'.
sQML Debugger: Status of 'DeclarativeDebugger' Version: -1 changed to
'unavailable'.
sQML Debugger: Status of 'JSDebugger' Version: -1 changed to 'unavailable'.
sQML Debugger: Status of 'QmlDebugger' Version: 2 changed to 'enabled'.
dInspector sending LIST_ENGINES
sQML Debugger: Status of 'V8Debugger' Version: 2 changed to 'enabled'.
dV8DebuggerClient: sending V8DEBUG connect
dV8DebuggerClient: sending V8DEBUG v8request
{"seq":0,"type":"request","command":"version"}
dV8DebuggerClient: receiving V8DEBUG connect
sQML Debugger: Status of 'DebugMessages' Version: 2 changed to 'enabled'.
sQML Debugger: Status of 'QmlInspector' Version: 1 changed to 'enabled'.
dV8DebuggerClient: receiving V8DEBUG v8message
dV8DebuggerClient: receiving v8message
{"seq":0,"type":"response","command":"version","success":true,"body":
{"V8Version":"3.15.2"},"refs":[],"running":true}
dV8DebuggerClient: receiving Using V8 Version: 3.15.2
dInspector receiving OBJECT_CREATED
qrc:/main.qml:96:5: QML Connections: Cannot assign to non-existent property
"onClosePage"
qrc:/main.qml:96:5: QML Connections: Cannot assign to non-existent property
"onGoToHome"
dInspector receiving OBJECT_CREATED
dInspector receiving LIST_ENGINES_R
dInspector sending LIST_OBJECTS
dInspector receiving LIST_OBJECTS_R
dInspector receiving WATCH_OBJECT_R
dInspector receiving OBJECT_CREATED
qrc:/main.qml:96:5: QML Connections: Cannot assign to non-existent property
"onGoToHome"
qrc:/main.qml:96:5: QML Connections: Cannot assign to non-existent property
"onOpenPage"
dInspector sending LIST_OBJECTS
dInspector receiving OBJECT_CREATED
dInspector sending LIST_OBJECTS
dInspector receiving LIST_OBJECTS_R
dInspector receiving LIST_OBJECTS_R
dInspector receiving WATCH_OBJECT_R
dInspector sending FETCH_OBJECTS_FOR_LOCATION
/root/DevApps/projects/ProjectBlue/LeftHeaderButton.qml:3:1
sQML Debugger: Error: (1) The remote host closed the connection
sQML Debugger: Remote host closed connection.
dNOTE: INFERIOR SPONTANEOUS STOP
sStopped.
dState changed from InferiorRunOk(11) to InferiorStopOk(14) [master]
dNOTE: INFERIOR ILL
dState changed from InferiorStopOk(14) to InferiorShutdownRequested(17) [master]
dQUEUE: SHUTDOWN INFERIOR
sQML Debugger: Closing.
sQML Debugger: Disconnected.
s
dCALL: SHUTDOWN INFERIOR
dV8DebuggerClient: sending V8DEBUG
{"seq":1,"type":"request","command":"disconnect"}
sQML Debugger: Disconnected.
s
sQML Debugger: Status of 'QmlDebugger' Version: 2 changed to 'not connected'.
sQML Debugger: Status of 'QDeclarativeObserverMode' Version: -1 changed to 'not
connected'.
sQML Debugger: Status of 'DebugMessages' Version: 2 changed to 'not connected'.
sQML Debugger: Status of 'QDeclarativeEngine' Version: -1 changed to 'not
connected'.
sQML Debugger: Status of 'V8Debugger' Version: 2 changed to 'not connected'.
sQML Debugger: Status of 'QmlInspector' Version: 1 changed to 'not connected'.
sQML Debugger: Status of 'DeclarativeDebugger' Version: -1 changed to 'not
connected'.
sQML Debugger: Status of 'JSDebugger' Version: -1 changed to 'not connected'.
dINFERIOR SUCCESSFULLY SHUT DOWN
dState changed from InferiorShutdownRequested(17) to InferiorShutdownOk(19)
[master]
dState changed from InferiorShutdownOk(19) to EngineShutdownRequested(20)
[master]
dQUEUE: SHUTDOWN ENGINE
dCALL: SHUTDOWN ENGINE
dNOTE: ENGINE SHUTDOWN OK
dState changed from EngineShutdownRequested(20) to EngineShutdownOk(22) [master]
dState changed from EngineShutdownOk(22) to DebuggerFinished(23) [master]
dQUEUE: FINISH DEBUGGER
sh: line 1: 2351 Segmentation fault DISPLAY=:0.0
/opt/ProjectBlue/bin/ProjectBlue -platform eglfs -plugin tslib -
qmljsdebugger=port:10000,block
Remote application finished with exit code 139.
dNOTE: INFERIOR ILL
dState changed from DebuggerFinished(23) to InferiorShutdownRequested(17)
[master]
dQUEUE: SHUTDOWN INFERIOR
dQUIT DEBUGGER REQUESTED IN STATE 17
dNOTE: INFERIOR ILL
dState changed from InferiorShutdownRequested(17) to
InferiorShutdownRequested(17) [master]
dQUEUE: SHUTDOWN INFERIOR
dNOTE: FINISH DEBUGGER
dHANDLE RUNCONTROL FINISHED
sDebugger finished.
dCALL: SHUTDOWN INFERIOR
dV8DebuggerClient: sending V8DEBUG
{"seq":2,"type":"request","command":"disconnect"}
dINFERIOR SUCCESSFULLY SHUT DOWN
dState changed from InferiorShutdownRequested(17) to InferiorShutdownOk(19)
[master]
dState changed from InferiorShutdownOk(19) to EngineShutdownRequested(20)
[master]
dQUEUE: SHUTDOWN ENGINE
dCALL: SHUTDOWN INFERIOR
dV8DebuggerClient: sending V8DEBUG
{"seq":3,"type":"request","command":"disconnect"}
dINFERIOR SUCCESSFULLY SHUT DOWN
dState changed from EngineShutdownRequested(20) to InferiorShutdownOk(19)
[master]
dState changed from InferiorShutdownOk(19) to EngineShutdownRequested(20)
[master]
dQUEUE: SHUTDOWN ENGINE
dCALL: SHUTDOWN ENGINE
dNOTE: ENGINE SHUTDOWN OK
dState changed from EngineShutdownRequested(20) to EngineShutdownOk(22) [master]
dState changed from EngineShutdownOk(22) to DebuggerFinished(23) [master]
dQUEUE: FINISH DEBUGGER
dCALL: SHUTDOWN ENGINE
dNOTE: ENGINE SHUTDOWN OK
dState changed from DebuggerFinished(23) to EngineShutdownOk(22) [master]
dState changed from EngineShutdownOk(22) to DebuggerFinished(23) [master]
dQUEUE: FINISH DEBUGGER
dNOTE: FINISH DEBUGGER
dNOTE: FINISH DEBUGGER
Thanks in advance!
Nate R.
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