Online installer for Opensource Qt failed on Win7

Zhe Shen

I was trying to install a fresh copy of Opensource Qt on my Windows 7 desktop with the online installer. The desktop had no network issue as all other network apps worked just fine. The installer always showed the same error message as following when it started downloading:

Setup - Qt
Welcome to open source Qt setup

Network error while downloadling "http://download.qt.io/online/qtsdkrepository/windows_x86/desktop/qt5_5120/src/doc_examples/qt.qt5.5120.src/5.12.0-0-20181204514meta.7z?_sm_nck=1':Error transferring http:.//download.qt.io/online/qtsdkrespository/windows_x86/desktop/qt5_5120/src/doc_examples/qt.qt5.5120.src/5.12.0-0-20181204514meta.7z?_sm_nck=1 - server replied: Forbidden.

Any help is appreciated.

SGaist

Hi and welcome to devnet,

Qt 5.12.1 got released a few days ago, can you try with that one ?

Zhe Shen

The online installer for 5.12.1 still didn't work, so I downloaded the offline version and this worked. However, when I ran QtCreator for the first time, I got this error message:

This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are windows (from C:\Ashling\OPXDRTT\MDB\platfroms), windows, direct2d, minimal, offscreen.

C:\Ashling\OPXDRTT\MDB\platfroms is inside a folder where I installed some third party software.

Thanks in advance for any help.

Zhe

aha_1980

@Zhe-Shen that sounds as if Qt DLLs of different versions/compilers are mixed.

Do you get this error when running Creator or when running your app from Creator?

jsulm

@Zhe-Shen said in Online installer for Opensource Qt failed on Win7:

C:\Ashling\OPXDRTT\MDB\platfroms is inside a folder where I installed some third party software.

Did you or the installer of that third party software put this directory to PATH env variable?

Zhe Shen

I got this error when running Creator from the Start Menu.

I checked and yes C:\Ashling\OPXDRTT\MDB is on my %PATH%.

I am pretty sure I have not installed any versions of Qt before on this Win7, but might have installed a program that was built on top of an earlier version of Qt.

Zhe