error dependent 'E:\QTT\QT590\lib\Qt5Widgetsd.lib' does not exist
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I don't know why the console output this error. Yesterday, I was used MSVC compiled qt5.15.9's source code, it's very successful, no errors, and then I installed qtcreater 5.0.3. Today I created a new project(It's my first qt project), I'm click "run qmake",
finally, complie output an error "dependent 'E:\QTT\QT590\lib\Qt5Widgetsd.lib' does not exist."Did I have a problem compiling the QT source code or I installed a broke version?
Who can give me a solution to this problem, please
@Huqis
Thedat the end ofQt5Widgetsd.libmeans it wants a debug version. Did you compile for debug? Does the file exist at that path, or nearby? Is it concerning that path includesQT590when you talk about using Qt 5.15? Do you have more than one version of Qt somewhere on that machine? -
@Huqis
Thedat the end ofQt5Widgetsd.libmeans it wants a debug version. Did you compile for debug? Does the file exist at that path, or nearby? Is it concerning that path includesQT590when you talk about using Qt 5.15? Do you have more than one version of Qt somewhere on that machine?@JonB QT590 is just a directory name, I just intall one qt(5.15), so QT590 not have any meaning. I don't compile for debug, I just choosed release. Primary!!!!!!! I checked qt's lib, I can't find Qt5Widgetsd.lib, is it not complied at I compile Qt source code? should I recompile source code or I should download this .lib file?
But I wanna know why Imy QT losted this .lib file, I didn't install qt by online install. I compiled and installed it using source compilation, and there were no errors during the compilation process, and I used nmake without any problems
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@JonB QT590 is just a directory name, I just intall one qt(5.15), so QT590 not have any meaning. I don't compile for debug, I just choosed release. Primary!!!!!!! I checked qt's lib, I can't find Qt5Widgetsd.lib, is it not complied at I compile Qt source code? should I recompile source code or I should download this .lib file?
But I wanna know why Imy QT losted this .lib file, I didn't install qt by online install. I compiled and installed it using source compilation, and there were no errors during the compilation process, and I used nmake without any problems
@Huqis said in error dependent 'E:\QTT\QT590\lib\Qt5Widgetsd.lib' does not exist:
I don't compile for debug,
Don't know what you mean. You compiled Qt sources yourself? Then you need to compile for Debug (as well as Release). And/or you are compiling your app for release? I am telling you that
Qt5Widgetsd.libmeans the debug version ofQt5Widgets.lib. So either you must have that somewhere, or build it, or you must find out what is compiling for debug now which wants to link against it and resolve that. -
@Huqis said in error dependent 'E:\QTT\QT590\lib\Qt5Widgetsd.lib' does not exist:
I don't compile for debug,
Don't know what you mean. You compiled Qt sources yourself? Then you need to compile for Debug (as well as Release). And/or you are compiling your app for release? I am telling you that
Qt5Widgetsd.libmeans the debug version ofQt5Widgets.lib. So either you must have that somewhere, or build it, or you must find out what is compiling for debug now which wants to link against it and resolve that. -
@JonB Yes, I compiled Qt sources, but I haven't it anywhere, and I don't know how can build it, so how can I build it or have it, I'm a QT beginner, sorry...
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@Huqis
I have never built Qt (I download prebuilt for my Linux distro only), so perhaps someone else can tell you where this is or what you have to do. -
@JonB You use QT in Linux, but I use it in Windows... I tried recompile Qtbase, but it still not generate QT5Widgetsd.lib
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@Huqis If you only build a release version of Qt then you can't build your app in debug mode, build it in release mode.
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@jsulm Ok, I choose release mode, the error is solved, I successfully ran my project, but I really want to debug my app, so how do I do that?
@Huqis said in error dependent 'E:\QTT\QT590\lib\Qt5Widgetsd.lib' does not exist:
so how do I do that?
Compile Qt in debug mode too. Or install a pre compiled Qt version which will contain it automatically.
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@Huqis said in error dependent 'E:\QTT\QT590\lib\Qt5Widgetsd.lib' does not exist:
so how do I do that?
Compile Qt in debug mode too. Or install a pre compiled Qt version which will contain it automatically.
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@Christian-Ehrlicher Excuse me, I have a problem.... I can't find QT's cmd, should I recompile QT?
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@jsulm I wanted to use the windeployqt command to package the .exe file, but I found that when I copied the QT generated file to another directory, I found that I was able to run it directly
Excuse me, I have a problem.... I can't find QT's cmd, should I recompile QT?
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@jsulm I wanted to use the windeployqt command to package the .exe file, but I found that when I copied the QT generated file to another directory, I found that I was able to run it directly
Excuse me, I have a problem.... I can't find QT's cmd, should I recompile QT?
@Huqis said in error dependent 'E:\QTT\QT590\lib\Qt5Widgetsd.lib' does not exist:
but I found that when I copied the QT generated file to another directory, I found that I was able to run it directly
I don't know what you mean here. Do you mean your application executable? And to which location did you copy it? If you want to run your Qt application on other machines which do not have Qt you have to do proper deployment.
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@Huqis said in error dependent 'E:\QTT\QT590\lib\Qt5Widgetsd.lib' does not exist:
but I found that when I copied the QT generated file to another directory, I found that I was able to run it directly
I don't know what you mean here. Do you mean your application executable? And to which location did you copy it? If you want to run your Qt application on other machines which do not have Qt you have to do proper deployment.
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I just copy my application executable to another new folder, that folder haven't any .lib file and .dll file
I don't know what you mean here. Do you mean your application executable? And to which location did you copy it?
@Huqis said in error dependent 'E:\QTT\QT590\lib\Qt5Widgetsd.lib' does not exist:
that folder haven't any .lib file and .dll file
Well, if it is on the machine where Qt is installed it can work, but not on a machine without Qt. And I don't think you want to ask your users to install Qt to make your app work :-) So, you have to do proper deployment.
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@Huqis said in error dependent 'E:\QTT\QT590\lib\Qt5Widgetsd.lib' does not exist:
that folder haven't any .lib file and .dll file
Well, if it is on the machine where Qt is installed it can work, but not on a machine without Qt. And I don't think you want to ask your users to install Qt to make your app work :-) So, you have to do proper deployment.
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@Huqis Like explained here: https://doc.qt.io/qt-6/windows-deployment.html
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@Huqis said in error dependent 'E:\QTT\QT590\lib\Qt5Widgetsd.lib' does not exist:
that folder haven't any .lib file and .dll file
Well, if it is on the machine where Qt is installed it can work, but not on a machine without Qt. And I don't think you want to ask your users to install Qt to make your app work :-) So, you have to do proper deployment.
@jsulm Why do I read other people's posts, they say "windeployqt.exe can't be used on C/C++ executables, or C/C++ executables only need the above 3 basic libraries to run on other machines, and don't use other Qt libraries at all." ”
But I don't know if these three basic libraries are fixedSo, you have to do proper deployment.
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@jsulm Why do I read other people's posts, they say "windeployqt.exe can't be used on C/C++ executables, or C/C++ executables only need the above 3 basic libraries to run on other machines, and don't use other Qt libraries at all." ”
But I don't know if these three basic libraries are fixedSo, you have to do proper deployment.
@Huqis said in error dependent 'E:\QTT\QT590\lib\Qt5Widgetsd.lib' does not exist:
Why do I read other people's posts, they say "windeployqt.exe can't be used on C/C++ executables
I don't know where you read that.
All I can tell you is that you need to deploy your app and that you can use the windeployqt tool like it is explained in the link I gave you.
"and don't use other Qt libraries at all" - Qt application typically also needs some of the plug-ins, which also needs to be deployed.
A dynamically linked application cannot run without shared libraries it was linked against. This is what deployment is doing: determine which libraries are needed by an executable and copy those next to the executable.
Why don't you simply follow the windeployqt documentation?
