Qt debugging crashes after update of Qt Maintenance Tool und Qt Creator 4.8.2 Debugger Support

aha_1980

@ornello so could you try a program without QtQuick, like a QtWidgets project from the Wizard?

ornello

I don't think QtQuick is the problem. I have now created a very simple Qt Widgets Application project using the QtCreator wizard: File -> New File or Project -> Application -> Qt Widgets Application -> Next -> Next -> Next -> Finish. This also crashes when debugging. Here is the log:

...
dStart parameters: 'untitled' mode: 1
dABI: x86-windows-msvc2015-pe-32bit
dLanguages: c++
dExecutable: C:\Entwicklung\build-untitled-Desktop_Qt_5_9_7_MSVC2015_32bit-Debug\debug\untitled.exe
dDirectory: C:\Entwicklung\build-untitled-Desktop_Qt_5_9_7_MSVC2015_32bit-Debug
dDebugger: C:\Program Files (x86)\Windows Kits\8.1\Debuggers\x86\cdb.exe
dProject: C:\Entwicklung\untitled
dAdditional Search Directories:
dSysroot:
dDebug Source Location:
dDebugger settings:
dAdditionalArguments: (default: )
dAdjustBreakpointLocations: true (default: true)
dAllPluginBreakpoints: true (default: true)
dAlwaysAdjustColumnWidths: true (default: true)
dAutoDerefPointers: true (default: true)
dAutoEnrichParameters: true (default: true)
dAutoQuit: false (default: false)
dBreakEvent: (default: )
dBreakOnAbort: false (default: false)
dBreakOnCatch: false (default: false)
dBreakOnCrtDbgReport: false (default: false)
dBreakOnFatal: false (default: false)
dBreakOnThrow: false (default: false)
dBreakOnWarning: false (default: false)
dBreakpointCorrection: true (default: true)
dBreakpointsFullPath: false (default: false)
dCDB_Console: false (default: false)
dCloseBuffersOnExit: false (default: false)
dCloseMemoryBuffersOnExit: true (default: true)
dDisplayStringLimit: 100 (default: 100)
dEnableReverseDebugging: false (default: false)
dExtraDumperFile: (default: )
dFirstChanceExceptionTaskEntry: true (default: true)
dFontSizeFollowsEditor: false (default: false)
dGdbCustomDumperCommands: (default: )
dGdbPostAttachCommands: (default: )
dGdbStartupCommands: (default: )
dIdentifyDebugInfoPackages: false (default: false)
dIgnoreFirstChanceAccessViolation: false (default: false)
dIntelFlavor: false (default: false)
dLoadGdbDumpers2: false (default: false)
dLoadGdbInit: true (default: true)
dLogTimeStamps: false (default: false)
dMaximalStackDepth: 20 (default: 20)
dMaximalStringLength: 10000 (default: 10000)
dMultiInferior: false (default: false)
dNoPluginBreakpoints: false (default: false)
dQmlInspector.ShowAppOnTop: false (default: false)
dRaiseOnInterrupt: true (default: true)
dRegisterForPostMortem: false (default: false)
dSecondChanceExceptionTaskEntry: true (default: true)
dSelectedPluginBreakpoints: false (default: false)
dSelectedPluginBreakpointsPattern: .* (default: .*)
dShowQObjectNames2: true (default: true)
dShowQmlObjectTree: true (default: true)
dShowQtNamespace: true (default: true)
dShowStandardNamespace: true (default: true)
dShowThreadNames: false (default: false)
dSkipKnownFrames: false (default: false)
dSortStructMembers: false (default: true) ***
dSourcePaths: (default: )
dStationaryEditorWhileStepping: false (default: false)
dSwitchModeOnExit: false (default: false)
dSymbolPaths: (default: )
dTargetAsync: false (default: false)
dUseAddressInBreakpointsView: false (default: false)
dUseAddressInStackView: false (default: false)
dUseAlternatingRowColours: false (default: false)
dUseCodeModel: true (default: true)
dUseDebuggingHelper: true (default: true)
dUseDynamicType: true (default: true)
dUseMessageBoxForSignals: true (default: true)
dUsePythonDumper: true (default: true)
dUseToolTips: true (default: true)
dUseToolTipsInBreakpointsView: true (default: false) ***
dUseToolTipsInLocalsView: false (default: false)
dUseToolTipsInStackView: true (default: true)
dWarnOnReleaseBuilds: true (default: true)
dWatchdogTimeout: 20 (default: 20)
dState changed from DebuggerNotReady(0) to EngineSetupRequested(1)
dCALL: SETUP ENGINE
Launching C:\Program Files (x86)\Windows Kits\8.1\Debuggers\x86\cdb.exe -aqtcreatorcdbext.dll -lines -G -c .idle_cmd !qtcreatorcdbext.idle -y "" C:\Entwicklung\build-untitled-Desktop_Qt_5_9_7_MSVC2015_32bit-Debug\debug\untitled.exe
using C:\Qt\Tools\QtCreator\lib\qtcreatorcdbext32\qtcreatorcdbext.dll of 28.02.2019 16:17.
C:\Program Files (x86)\Windows Kits\8.1\Debuggers\x86\cdb.exe running as 6584
Microsoft (R) Windows Debugger Version 6.3.9600.17298 X86
Using CDB based breakpoint correction.
Copyright (c) Microsoft Corporation. All rights reserved.
CommandLine: C:\Entwicklung\build-untitled-Desktop_Qt_5_9_7_MSVC2015_32bit-Debug\debug\untitled.exe
Error: Attempts to access '""' failed: 0x7b - Die Syntax für den Dateinamen, Verzeichnisnamen oder die Datenträgerbezeichnung ist falsch.
************* Symbol Path validation summary **************
Response Time (ms) Location
Error ""
Symbol search path is: ""
Executable search path is:
Module loaded: untitled.exe
Module loaded: ntdll.dll
Module loaded: C:\WINDOWS\SysWOW64\KERNEL32.DLL
Module loaded: C:\WINDOWS\SysWOW64\KERNELBASE.dll
Module loaded: C:\Program Files\Symantec.cloud\EndpointProtectionAgent\NortonData\22.15.1.8\Definitions\BASHDefs\20190409.001\UMEngx86.dll
Module loaded: C:\WINDOWS\SysWOW64\SHELL32.dll
Module loaded: C:\WINDOWS\SysWOW64\msvcrt.dll
Module loaded: C:\Qt\5.9.7\msvc2015\bin\Qt5Widgetsd.dll
Module loaded: C:\Qt\5.9.7\msvc2015\bin\Qt5Cored.dll
Module loaded: C:\WINDOWS\SysWOW64\cfgmgr32.dll
Module loaded: C:\WINDOWS\SysWOW64\ucrtbase.dll
Module loaded: C:\WINDOWS\SysWOW64\shcore.dll
Module loaded: C:\WINDOWS\SysWOW64\RPCRT4.dll
Module loaded: C:\WINDOWS\SysWOW64\SspiCli.dll
Module loaded: C:\WINDOWS\SysWOW64\CRYPTBASE.dll
Module loaded: C:\WINDOWS\SysWOW64\bcryptPrimitives.dll
Module loaded: C:\WINDOWS\SysWOW64\sechost.dll
Module loaded: C:\WINDOWS\SysWOW64\combase.dll
Module loaded: C:\WINDOWS\SysWOW64\WS2_32.dll
Module loaded: C:\WINDOWS\SysWOW64\GDI32.dll
Module loaded: C:\WINDOWS\SysWOW64\windows.storage.dll
Module loaded: C:\WINDOWS\SysWOW64\USER32.dll
Module loaded: C:\WINDOWS\SysWOW64\gdi32full.dll
Module loaded: C:\WINDOWS\SysWOW64\msvcp_win.dll
Module loaded: C:\WINDOWS\SysWOW64\win32u.dll
Module loaded: C:\WINDOWS\SysWOW64\msvcp_win.dll
Module loaded: C:\WINDOWS\SysWOW64\ole32.dll
Module loaded: C:\WINDOWS\SysWOW64\advapi32.dll
Module loaded: C:\WINDOWS\SysWOW64\profapi.dll
Module loaded: C:\WINDOWS\SysWOW64\powrprof.dll
Module loaded: C:\WINDOWS\SysWOW64\shlwapi.dll
Module loaded: C:\WINDOWS\SysWOW64\kernel.appcore.dll
Module loaded: C:\WINDOWS\SysWOW64\cryptsp.dll
eERROR: Process crashed
dCDB PROCESS FINISHED, status 1, exit code -1073741515
dNOTE: INFERIOR ILL
dState changed from EngineSetupRequested(1) to InferiorShutdownRequested(13)
dCALL: SHUTDOWN INFERIOR
dINFERIOR FINISHED SHUT DOWN
dState changed from InferiorShutdownRequested(13) to InferiorShutdownFinished(14)
dState changed from InferiorShutdownFinished(14) to EngineShutdownRequested(15)
dCALL: SHUTDOWN ENGINE
dNOTE: ENGINE SHUTDOWN FINISHED
dState changed from EngineShutdownRequested(15) to EngineShutdownFinished(16)
Debugger finished.
dState changed from EngineShutdownFinished(16) to DebuggerFinished(17)

ornello

I have found the DLLs causing the crash:
msvcp140d.dll
vcruntime140d.dll

Seems that these two files are either not loaded at all, or the wrong files are loaded. When copying these two files from the following folder to my build folder, debugging works again:
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\redist\debug_nonredist\x86\Microsoft.VC140.DebugCRT

Is it possible that the new Qt Creator 4.8.2 Debugger Support loads these files from a different location than before? How can I fix paths to tell Qt Creator loading them from the correct (above) location?

ornello

Ok, "solved" the problem by adding C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\redist\debug_nonredist\x86\Microsoft.VC140.DebugCRT to my system path variable, although this should not be necessary. Other attempts did not work.

If anyone has an idea why the two dlls are not found any more and how to "really" fix the problem, please let me know.

hskoglund

Hi, just guessing, but I've seen this problem sometimes with anti-virus programs, you could try disable your Symantec anti-virus.

ornello

Deactivation of Symantec client did not help.
Update to Qt Creator 4.9.0 and Qt Creator 4.9.0 Debugger Support did not help either.

aha_1980

@ornello just for clarification: can you Run (without debugger) a debug version from Creator?

If yes, that would mean the debugger messes the PATH up.

ornello

No, maybe I have not been clear enough here: Running the debug version also crashes, but running the release version works fine.
Something must have changed from Debugger Support version 4.8.1 to 4.8.2 because everything was running fine right before I made the update.

aha_1980

@ornello I think you should ask on the mailing list or create directly a bug at bugreports.qt.io

I'm out of ideas here.

ornello

Reported here: https://bugreports.qt.io/browse/QTCREATORBUG-22335