Entry Point Not Found-QtCored4.dll

[JKSH]

@Ratzz said:

Using Qt version 4.7.4 (QMake version 2.01a)and 4.8.1 (QMake version 2.01a)

Sorry, I just noticed this. You do have multiple versions of Qt on your machine.

Uninstall one of them. The error message you got ("Entry point not found") is often caused when you build your app using one version of Qt but use the DLLs from a different version.

[Ratzz]

How to uninstall one of them ? I do not find in the control panel.
i am using Visual Studio 2008.
I have done a fresh install of SDK . Before doing it i have deleted all Previous files .

[Ratzz]

In my C:\QtSDK\Desktop\Qt path i find two folder 4.7.4\msvc2008 and 4.8.1\msvc2008,msvc2010.

[JKSH]

@Ratzz said:

How to uninstall one of them ? I do not find in the control panel.

Go to your SDK folder. You should find something called MaintenanceTool.exe -- this lets you add/remove packages.

i am using Visual Studio 2008.
...
In my C:\QtSDK\Desktop\Qt path i find two folder 4.7.4\msvc2008 and 4.8.1\msvc2008,msvc2010.

MSVC 2010 is not compatible with Visual Studio 2008. Remove the MSVC 2010 package.

Also remove Qt 4.7.4 -- this is extremely old and not supported any more.

[Ratzz]

IS it the Right Link To install SDK with 4.8.1 https://download.qt.io/archive/qt/4.8/4.8.1/qt-win-opensource-4.8.1-vs2008.exe

[JKSH]

@Ratzz said:

IS it the Right Link To install SDK with 4.8.1 https://download.qt.io/archive/qt/4.8/4.8.1/qt-win-opensource-4.8.1-vs2008.exe

Yes it is.

But if you are going to download a new SDK, I suggest you go straight to Qt 4.8.6: https://download.qt.io/archive/qt/4.8/4.8.6/qt-opensource-windows-x86-vs2008-4.8.6.exe This version is fully compatible with Qt 4.8.1.

Also upgrade your Qt Creator (Version 2.4.1 is extremely extremely old): http://download.qt.io/official_releases/qtcreator/3.4/3.4.1/qt-creator-opensource-windows-x86-3.4.1.exe

(In fact, after you get your app working, I highly recommend you port to Qt 5.4.2. However, that requires a bit more work, so let's focus on getting your app working on Qt 4.8.6 first.)

[Ratzz]

@JKSH
We are currently using QtSdk-offline-win-x86-v1_2_1.exe . When i do fresh install of this .exe file , Qt Creator 2.4.1, SDK 4.7.4\msvc2008 and SDK 4.8.1\msvc2008,msvc2010 will be automatically installed.
If i run the MaintenanceTool.exe both the SDK 4.7.4 and 4.8.1 will be uninstalled.

[JKSH]

@Ratzz said:

We are currently using QtSdk-offline-win-x86-v1_2_1.exe . When i do fresh install of this .exe file , Qt Creator 2.4.1, SDK 4.7.4\msvc2008 and SDK 4.8.1\msvc2008,msvc2010 will be automatically installed.
If i run the MaintenanceTool.exe both the SDK 4.7.4 and 4.8.1 will be uninstalled.

Why don't you download https://download.qt.io/archive/qt/4.8/4.8.6/qt-opensource-windows-x86-vs2008-4.8.6.exe ?

[Ratzz]

@JKSH
Hi, i have installed Qt 4.8.6: https://download.qt.io/archive/qt/4.8/4.8.6/qt-opensource-windows-x86-vs2008-4.8.6.exe and Qt Creator: http://download.qt.io/official_releases/qtcreator/3.4/3.4.1/qt-creator-opensource-windows-x86-3.4.1.exe.
I tried to create new project i got this error
No valid kits found
Please add a kit in the options or via the maintenance tool of the SDK.

options directs me to kits tab in buit and run option
I find 2 options
auto deteced and manual.
manual has 7 options
1.desktop (default)
2.desktop
3.desktop
4.desktop
5.desktop
6.desktop(! symbol at thye begining)
7.Qt 4.8.1(msvc2008)

[JKSH]

Did you uninstall your old SDKs first? You should, otherwise you might get mixed up between versions.

1. See Adding Compilers to tell Qt Creator where to find your compiler.
2. See Adding Qt Versions to tell Qt Creator where to find the Qt binaries.
3. Finally, see Adding Kits to tell Qt Creator how to combine your compiler with the Qt binaries.

[Ratzz]

@JKSH
I have manually added Qt Version 4.8.6( No auto detected version )
compiler is Microsoft visual c++ compiler 9.0 (x86) and the relevant kits. now while build i get
Issue : ":-1: error: LNK1104: cannot open file 'kernel32.lib'"
complier output :
LINK : fatal error LNK1104: cannot open file 'kernel32.lib'
jom: D:\Rathan\QT\build-untitled2-Desktop_a39205-Debug\Makefile.Debug [debug\untitled2.exe] Error 1104
jom: D:\Rathan\QT\build-untitled2-Desktop_a39205-Debug\Makefile [debug] Error 2
17:29:39: The process "C:\Qt\qtcreator-3.4.1\bin\jom.exe" exited with code 2.
Error while building/deploying project untitled2 (kit: Desktop)
When executing step "Make"