QT Windows 7 Installation Issues

MrShawn

Hi,

Thanks for the response...

It does have the MinGW compiler checked as default(5.3 version) down below in the tools. I also installed Visual Studio with the C++ compiler and it does not auto detect that.

aha_1980

Hi @MrShawn

Can you please show the screens in QtCreator > Tools > Options > Build&Run? Especially Compilers and Kits are interesting.

JKSH

@MrShawn said in QT Windows 7 Installation Issues:

I am very (VERY) new to QT. Most of my c++ experience is in ubuntu basically calling the g++ compiler on my code. This means that my windows programming experience is also very minimal - only having done a little in Visual Studio.

Hi @MrShawn, and welcome to the Qt Dev Net!

New-ness to Qt, C++, or Windows are not significant barriers. Qt is designed to be easy to learn, and this community is happy to help.

I already had Visual Studio installed as well, maybe this is the problem.

Usually, having Visual Studio or not should not matter at all.

After installing the most recent version available (I use the MinGW compiler as well) from the installer I open a new project and I basically get this weird error:
"Project ERROR: failed to parse default search paths from compiler output
Error while parsing file C:*************\test3.pro. Giving up."

Does your project path contain any spaces at all? (It's best to use a path with no spaces).

What happens if you try to open one of the examples? (from Qt Creator's Welcome screen, click "Examples")

I am trying to install QT on my Windows 7 work computer (because I want to get away from LabVIEW and actually write real code).

Off-topic for this thread, but I'm curious: Why you feel that LabVIEW code doesn't count as "real code"?

MrShawn

Thanks for the help guys... I tried reinstalling with the newest options(5.10.1)... made sure the compiler is checked off in the tools as well. Still the same problem here are some Screen Shots:

I looked and all the .exe files being referenced for the compilers are there also the qmake.exe is where it seems to be looking.

@JKSH
"Off-topic for this thread, but I'm curious: Why you feel that LabVIEW code doesn't count as "real code"?"

I should preface by saying I may have been a little salty when I wrote that.

Anyways there are a lot of reasons I feel this way - but the best I have seen came from someone else. They said something along the lines of that he can make labview with C++ but he cant make it with labview. And to reinforce this when I look at the forums (I think the LAVA one) there is a member that works on LV and his signature is along the lines of "I write C++ so you don't have to". Having only started in LV months ago - I was somewhat insulted by this.

Plus lets be honest me personally I am not very good at art and drawing which I am forced to do in LV. In the end I would just rather write text based code, and C++ is really the language I want to use.

I find I am constantly trying to undermine the LV paradigm of 'data flow' and trying to do a lot of object oriented code which in my honest opinion breaks down in LV - even when using referenced based objects and actor framework in LV.

LV isn't world breakingly bad - but it isn't really for me.

jsulm

@MrShawn Can you try folowwing: copy the example project directory to some location where you have write access and try to build it then.
Also, do you have anything compiler/Qt related in your PATH?

J.Hilk

@JKSH said in QT Windows 7 Installation Issues:

Off-topic for this thread, but I'm curious: Why you feel that LabVIEW code doesn't count as "real code"?

:D good one, I would define LabView more as an "Point and Click-adventure" than anything else.

To be honest there weren't many programming languages introduced to me during my studies that I liked ...

JKSH

@MrShawn said in QT Windows 7 Installation Issues:

I looked and all the .exe files being referenced for the compilers are there also the qmake.exe is where it seems to be looking.

Hmm... your error messages are not caused by missing files. Your screenshots show that everything is present, and Qt Creator has found your compiler (MinGW). Qt Creator is complaining that the compiler didn't produce the expected output.

I suspect that @jsulm is on the right track -- perhaps something in your environment is causing Qt Creator to load the wrong version of an .exe. To test this, open the Command Prompt and run the following to launch Qt Creator with a clean environment:

cd C:\Qt\Tools\QtCreator\bin\
set path=""
qtcreator.exe

Are you able to build an example project now?

P.S. I'm interested in following up on more comments about LabVIEW, but gotta run for now. Also, let's focus on getting your Win7 system set up first!

MrShawn

Going through CMD.
Same error when I load it and when I go to compile it I get 'Cannot run compiler 'g++'. Output:'

@jsulm
I am fairly sure I have write access there, I am admin.
I copied to my documents and tried to open and compile same errors.
Not really sure what you're asking on the second part - sorry.

hskoglund

Hi, just guessing but you could try disabling your antivirus program.
Also, if it's allowed/possible on your work computer, try running as a local user (i.e. not logged in on any Active Directory or remote desktop).

MrShawn

Disabled my AV - still the same errors. I am pretty sure I am unable to log in as a local user unfortunately. I tried making one it is giving me some weird error. I am wondering if this is the cause of my problem honestly. I was also suspecting that it wasn't compatible with windows 7 because I have been forced to install older versions of MS Visual Studio and MSSqlStuff due to windows 7 compatibility issues.

hskoglund

Ok, might be the problem is some kind of group policy/restriction, if your account is allowed to change environment variables. I know using Qt Creator inside XenApps are difficult for that reason.

JKSH

@MrShawn said in QT Windows 7 Installation Issues:

Going through CMD.
Same error when I load it and when I go to compile it I get 'Cannot run compiler 'g++'. Output:'

Ok, it looks like something is preventing g++ from running. @hskoglund has already asked you to try the antivirus, so it must be something else.

Next check: See if MinGW actually works on your computer or not. From CMD, run:

> g++ -v
> cd C:\Qt\Tools\mingw530_32\bin\
> g++ -v

(The 1st line is a sanity check: It should say that "'g++' is not recognized...". If it doesn't, let us know. The 3rd line should print useful information, now that you've cd'ed into the correct folder)

Post the final output of g++ here. To make it easier to copy-and-paste, you can stream the output to a text file: g++ -v 2> log.txt

Mine says:

Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=C:/Qt/Tools/mingw530_32/bin/../libexec/gcc/i686-w64-mingw32/5.3.0/lto-wrapper.exe
Target: i686-w64-mingw32
Configured with: ../../../src/gcc-5.3.0/configure --host=i686-w64-mingw32 --build=i686-w64-mingw32 --target=i686-w64-mingw32 --prefix=/mingw32 --with-sysroot=/c/mingw530/i686-530-posix-dwarf-rt_v4-rev0/mingw32 --with-gxx-include-dir=/mingw32/i686-w64-mingw32/include/c++ --enable-shared --enable-static --disable-multilib --enable-languages=c,c++,fortran,lto --enable-libstdcxx-time=yes --enable-threads=posix --enable-libgomp --enable-libatomic --enable-lto --enable-graphite --enable-checking=release --enable-fully-dynamic-string --enable-version-specific-runtime-libs --disable-sjlj-exceptions --with-dwarf2 --disable-isl-version-check --disable-libstdcxx-pch --disable-libstdcxx-debug --enable-bootstrap --disable-rpath --disable-win32-registry --disable-nls --disable-werror --disable-symvers --with-gnu-as --with-gnu-ld --with-arch=i686 --with-tune=generic --with-libiconv --with-system-zlib --with-gmp=/c/mingw530/prerequisites/i686-w64-mingw32-static --with-mpfr=/c/mingw530/prerequisites/i686-w64-mingw32-static --with-mpc=/c/mingw530/prerequisites/i686-w64-mingw32-static --with-isl=/c/mingw530/prerequisites/i686-w64-mingw32-static --with-pkgversion='i686-posix-dwarf-rev0, Built by MinGW-W64 project' --with-bugurl=http://sourceforge.net/projects/mingw-w64 CFLAGS='-O2 -pipe -I/c/mingw530/i686-530-posix-dwarf-rt_v4-rev0/mingw32/opt/include -I/c/mingw530/prerequisites/i686-zlib-static/include -I/c/mingw530/prerequisites/i686-w64-mingw32-static/include' CXXFLAGS='-O2 -pipe -I/c/mingw530/i686-530-posix-dwarf-rt_v4-rev0/mingw32/opt/include -I/c/mingw530/prerequisites/i686-zlib-static/include -I/c/mingw530/prerequisites/i686-w64-mingw32-static/include' CPPFLAGS= LDFLAGS='-pipe -L/c/mingw530/i686-530-posix-dwarf-rt_v4-rev0/mingw32/opt/lib -L/c/mingw530/prerequisites/i686-zlib-static/lib -L/c/mingw530/prerequisites/i686-w64-mingw32-static/lib -Wl,--large-address-aware'
Thread model: posix
gcc version 5.3.0 (i686-posix-dwarf-rev0, Built by MinGW-W64 project)

If yours shows the same, try to use it to compile a Hello World C++ file, just like how you did on Ubuntu:

> C:\Qt\Tools\mingw530_32\bin\g++ main.cpp

Does it work?

MrShawn

Heres the log - just as you said.

Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=C:/Qt/Tools/mingw530_32/bin/../libexec/gcc/i686-w64-mingw32/5.3.0/lto-wrapper.exe
Target: i686-w64-mingw32
Configured with: ../../../src/gcc-5.3.0/configure --host=i686-w64-mingw32 --build=i686-w64-mingw32 --target=i686-w64-mingw32 --prefix=/mingw32 --with-sysroot=/c/mingw530/i686-530-posix-dwarf-rt_v4-rev0/mingw32 --with-gxx-include-dir=/mingw32/i686-w64-mingw32/include/c++ --enable-shared --enable-static --disable-multilib --enable-languages=c,c++,fortran,lto --enable-libstdcxx-time=yes --enable-threads=posix --enable-libgomp --enable-libatomic --enable-lto --enable-graphite --enable-checking=release --enable-fully-dynamic-string --enable-version-specific-runtime-libs --disable-sjlj-exceptions --with-dwarf2 --disable-isl-version-check --disable-libstdcxx-pch --disable-libstdcxx-debug --enable-bootstrap --disable-rpath --disable-win32-registry --disable-nls --disable-werror --disable-symvers --with-gnu-as --with-gnu-ld --with-arch=i686 --with-tune=generic --with-libiconv --with-system-zlib --with-gmp=/c/mingw530/prerequisites/i686-w64-mingw32-static --with-mpfr=/c/mingw530/prerequisites/i686-w64-mingw32-static --with-mpc=/c/mingw530/prerequisites/i686-w64-mingw32-static --with-isl=/c/mingw530/prerequisites/i686-w64-mingw32-static --with-pkgversion='i686-posix-dwarf-rev0, Built by MinGW-W64 project' --with-bugurl=http://sourceforge.net/projects/mingw-w64 CFLAGS='-O2 -pipe -I/c/mingw530/i686-530-posix-dwarf-rt_v4-rev0/mingw32/opt/include -I/c/mingw530/prerequisites/i686-zlib-static/include -I/c/mingw530/prerequisites/i686-w64-mingw32-static/include' CXXFLAGS='-O2 -pipe -I/c/mingw530/i686-530-posix-dwarf-rt_v4-rev0/mingw32/opt/include -I/c/mingw530/prerequisites/i686-zlib-static/include -I/c/mingw530/prerequisites/i686-w64-mingw32-static/include' CPPFLAGS= LDFLAGS='-pipe -L/c/mingw530/i686-530-posix-dwarf-rt_v4-rev0/mingw32/opt/lib -L/c/mingw530/prerequisites/i686-zlib-static/lib -L/c/mingw530/prerequisites/i686-w64-mingw32-static/lib -Wl,--large-address-aware'
Thread model: posix
gcc version 5.3.0 (i686-posix-dwarf-rev0, Built by MinGW-W64 project)

Calling the g++ on code does work and it compiles.

Weird man. I got another computer that is windows behind me that I host some stuff from. I am going to install Qt on that and see if it works fine.

J.Hilk

@MrShawn
so, the problem lies with QtCreator than.

You said you deinstalled, added and removed everything at least once. Is that also true for Qt-Creator? The IDE is not something you can deselect via maintenance tool, one has to sadly wipe everything clean.

MrShawn

@J-Hilk
Hey, When I removed it I went to control panel programs and uninstalled Qt there.

Is there a better way to remove everything... I also used the maintenance tool to do the same by clicking remove all components, as I removed it multiple times.

I will give it another shot to uninstall everything.

UPDATE: Still no luck, I uninstalled, removed everything - cleared out what was left in the Qt folder, and I also installed the fresh version to a different location. I still get the same exact errors. Too bad for me.

JKSH

@MrShawn said in QT Windows 7 Installation Issues:

UPDATE: Still no luck, I uninstalled, removed everything - cleared out what was left in the Qt folder, and I also installed the fresh version to a different location. I still get the same exact errors. Too bad for me.

For a proper clean uninstall, you might need to also clear out these folders:

C:\Users<USERNAME>\AppData\Local\QtProject
C:\Users<USERNAME>\AppData\Roaming\Qt
C:\Users<USERNAME>\AppData\Roaming\QtProject

@MrShawn said in QT Windows 7 Installation Issues:

I also installed Visual Studio with the C++ compiler and it does not auto detect that.

If you installed the C++ tools Visual Studio 2015/2017 and rebooted, then installed Qt 5.10 for the same version of Visual Studio, Qt Creator would normally auto-detect everything.

If it doesn't for some reason, you can add them manually:

(But if auto-detection doesn't happen, it's a sign that something in your system is blocking Qt Creator from interacting with the compilers... would your IT department be able to shed any light on this?)

MrShawn

EDIT***
So I recently went back to revisit this issue. For whatever reason my PATH variable wasn't set/didnt even exist for MinGW. I followed these instructions: http://www.mingw.org/wiki/Getting_Started
Scroll Down to 'Environment' and set up your path variables... My compiler location was 'C:\Qt\Tools\mingw530_32\bin'.

Yea my problem is unique to this PC because I installed Qt on the desktop behind me, that I don't use other than to host random stuff. It worked first try no issues. I did ANOTHER fresh install deleting the folders you mentioned. Still nothing. For now I am OK with using the PC behind me for Qt. Maybe at some point I will ask for a new main desktop and with the fresh OS install Qt again then.

Thanks to everyone for their help, really appreciate it.

@JKSH
I too am interested in a LV discussion as I am curious on other people's perspectives on the matter, especially from Qt programmers. If you want to start a new post and link me to it I would be glad to discuss there. Honestly I am hoping that everything I can do with LV I can with Qt. My projects will entail a lot of device interfacing, some are NI devices which they provide libraries in c/c++ when installing their drivers.

MrShawn

UPDATE*** (In case others have similar problems)

9 Months later I went on tackling this problem. Turns out it was the file wall. It was preventing QtCreator.exe and QMake.exe from calling the cmd.exe. That is why when I was running things manually it would appear like everything was working just fine, but as soon as I tried to use QtCreator it would not work. I was actually able to go into the windows event logs and see the blocking event from occurring.

After getting those white listed everything seems to be working good now.