Which DLL files to need to run exe files in other computer?

LeeMinh

Hi all,

Currently I have finished a small application with QT. I copied Build and Debug folders to other computers to test (without installing QT). When I ran exe files, I got the error message "The program can't start because QT5core.dll is missing__". Which DLL files to need to run exe files in other computer?

When I copy project folder - was build and generate to bin folder - from my computer to anothers. It shows "The program can't start because QT5core.dll is missing".

Will I install QT to another computer for get all of QT dll - It arround 2gb. I think it's not good solution. Because when I want to transfer it to customer. He will not like to install this software for just seeing program.

I tried to use NSIS but I don't know how to get dll from my machine. And what dll will I need for move to build folder.

Thanks for any solutions from you.

JKSH

Hi,

See http://qt-project.org/doc/qt-5.1/qtdoc/deployment-windows.html

LeeMinh

I used "qmake" and "mingw32-make debug-all" . It generate .exe file in debug folder. I copy Qt5Core.dll , Qt5Gui.dll , Qt5Widgets.dll to application folder (It's nearly .pro file - paralle with debug folder). It didnt' work.

SergioDanielG

Hi LeeMinh.
To debug mode, try with Qt5Cored.dll, Qt5Guid.dll , Qt5Widgetsd.dll

Regards

LeeMinh

It show *icuin51.dll * is missing too after I copy 3 dll files to debug folder.

dbzhang800

Hi,

When you want to deploy your application, please compile it under release mode instead of debug mode.
You can use microsoft tool "process explorer ", to find all the dlls used in your application.

JKSH

[quote author="LeeMinh" date="1374492589"]It show *icuin51.dll * is missing too after I copy 3 dll files to debug folder.[/quote]Then copy icuin51.dll into your folder.

In the link I posted, read "Creating the Application Package" -- it lists many DLLs that you need

LeeMinh

"Qt relies on the ICU library for unicode support. Therefore, you must include the ICU DLLs that are located in the bin directory of your Qt installation if Qt was configured to use ICU. The Qt version bundled in the Qt5 package uses ICU, so deployment is needed there. The ICU DLLs are version dependent and have to match the ones your Qt version was linked against."- Creating the Application Package

Is it right?

JKSH

From that paragraph, scroll down some more. You will see a few lists/tables of DLLs.

LeeMinh

Dear JKSH.
Thanks for your sugesstion. There are dll files which I copy to release folder - It contain excute file.

Qt5Core.dll
Qt5Gui.dll
Qt5Sql.dll
Qt5Widgets.dll
icudt51.dll
icuin51.dll
icuuc51.dll
libgcc_s_dw2-1.dll
libstdc++-6.dll
libwinpthread-1.dll

So, I have another question. What will we do if we want to move these dll to another folder such as lib folder. I think that it will be clearly if we move these dll to a clearly name folder . It also we will not hold on it at release folder.

dbzhang800

You need re-read the documentation “Creating the Application Package” .

The windows platform plugin must be deployed, it's required by all the GUI application.
Seems that Qt5Sql.dll is deployed by yourself. so it nearly sure that database plugins is needed by your application.
other plugins such as imageformats is required if you used .gif/.jpg/... files in your application.
...

Please use a process tool such as Microsoft's process explorer to monitor your application, so you can easily find out all the dlls needed by your application.

LeeMinh

Will I must copy these dll - I comment above - (in C:\Qt\Qt5.1.0\5.1.0\mingw48_32\bin) to RELEASE folder?

I cant' copy them to another folder such as \MyProject\Myresources\Mylib folder?

LeeMinh

When I copy to target machine. It show

This application has requested the Runtime to terminate it in an unusual way Please contact the application's support team for more information

May you explain it for me. I'm looking forward to receiving your msg.
Thanks,

JKSH

[quote author="LeeMinh" date="1374553838"]When I copy to target machine. It show

This application has requested the Runtime to terminate it in an unusual way Please contact the application's support team for more information

May you explain it for me. I'm looking forward to receiving your msg.
Thanks,[/quote]That means your program crashed. Does it run properly on your development PC?

Did you remember to include platforms\qwindows.dll?

What OS does your development PC use? What OS does your target PC use?

[quote author="LeeMinh" date="1374551835"]Will I must copy these dll - I comment above - (in C:\Qt\Qt5.1.0\5.1.0\mingw48_32\bin) to RELEASE folder?

I cant' copy them to another folder such as \MyProject\Myresources\Mylib folder?[/quote]No. If you copy them to another folder, the .exe file can't find them. In Qt, only plugin DLLs are put in subfolders.

All programs will look for DLLs in the same folder as the .exe -- that is normal. If you look inside C:\Program Files, you can see that most programs put the .dll files together with the .exe files.

If you want to be tidy and clear, put a Shortcut on your desktop.

LeeMinh

[quote author="JKSH" date="1374562273"]That means your program crashed. Does it run properly on your development PC?

Did you remember to include platforms\qwindows.dll?

What OS does your development PC use? What OS does your target PC use?[/quote]

1.It's run fine when I run it on my development PC.

2.I forgot include platforms\qwindows.dll.

3.I use win7-32bit at development PC and target PC use win7-32bit too.

I have been checking how to add platforms\qwindows.dll to my project.

Will I copy it to \release\platforms\qwindows.dll and run executable file.

It didn't work in here. Will I reconfigure something at .pro file?

JKSH

[quote author="LeeMinh" date="1374564383"][quote author="JKSH" date="1374562273"]That means your program crashed. Does it run properly on your development PC?

1.It's run fine when I run it on my development PC.[/quote][/quote]Sorry, I wasn't clear before: Does it run properly on your development PC, outside Qt Creator? Close Qt Creator, and run your program by launching the .exe file directly.

[quote]3.I use win7-32bit at development PC and target PC use win7-32bit too.[/quote]Ok, that should be easier then. (Deployment is harder if you build on Windows 7 and transfer to Windows XP)

[quote]I have been checking how to add platforms\qwindows.dll to my project.

Will I copy it to \release\platforms\qwindows.dll and run executable file. [/quote]Yes, that is correct. Your folder should look like this:

\release\application.exe
\release\Qt5Core.dll
\release\Qt5Gui.dll
\release\Qt5Sql.dll
\release\Qt5Widgets.dll
\release\icudt51.dll
\release\icuin51.dll
\release\icuuc51.dll
\release\libgcc_s_dw2-1.dll
\release\libstdc++-6.dll
\release\libwinpthread-1.dll
\release\platforms\qwindows.dll

(but maybe it needs more. Did you use "Process Explorer":http://technet.microsoft.com/en-au/sysinternals/bb896653.aspx, as suggested by 1+1=2?)

[quote]It didn't work in here. Will I reconfigure something at .pro file?
[/quote]No, the .pro file is only for compiling and linking.

LeeMinh

When I copy a basic project to target PC. It work fine.

LeeMinh

[quote author="JKSH" date="1374565818"]
Sorry, I wasn't clear before: Does it run properly on your development PC, outside Qt Creator? Close Qt Creator, and run your program by launching the .exe file directly.
[/quote]
Yes,I close the Qt Creator and It run fine at development machine.

LeeMinh

It's seem missing some dll when I ran real project at target machine.I use sqlite for database and some images for icon. That's all.

LeeMinh

It show
C:\Qt\Qt5.1.0\5.1.0\mingw48_32\plugins\imageformats\qgif.dl at Process Explorer.
Will we create release\imageformats folder?