Project ERROR: Cannot run compiler 'g++'

[MrShawn]

Hi,
I just reinstalled Qt and Qt creator on a windows 10 machine and am having this error. I tried to spend some time on it and could not find a solution. I am hoping someone smarter than me can provide some insight on how to solve the problem. Qt Version 5.11.

Project ERROR: Cannot run compiler 'g++'. Output:
===================
===================
Maybe you forgot to setup the environment?
11:00:09: The process "C:\Qt\5.11.0\mingw53_32\bin\qmake.exe" exited with code 3.
Error while building/deploying project 6528Test (kit: MyKit)
When executing step "qmake"

I am using mingw 5.3 and used the online installer, just like every time before. Also when I load projects at the start I get this error, and nothing but the .pro file is loaded.

Running Windows Runtime device detection.
No winrtrunner.exe found.

What is interesting is at one point I had Qt installed and running, and then suddenly it was removed from the machine - since then I am having this issue. I did add the mingw compiler directory to the windows Path variable and can call it freely in the cmd prompt.

g++ --version
g++ (i686-posix-dwarf-rev0, Built by MinGW-W64 project) 5.3.0
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

I have looked and looked for awhile and tried a few things that I see but everyone's reponse on problems is that MSVC++ compiler is missing but I am using mingw not MSVC++.

Here's MyKiy:

[jsulm]

@MrShawn Did you try to delete the *.pro.user file?

[MrShawn]

I just tried that, no luck still got the same errors.

[SGaist]

Hi,

Did you check the PATH environment variable in the Build part of the Project panel ?

[Asha]

Hi,
how to delete the pro file?..I am very new to this qt..please let me know..

[SGaist]

@Asha it's the .pro.user file that is mentioned. Deleting it is unrelated to Qt, just use your file manager or a terminal to delete the file.

[Asha]

Thankyou for the replay, now after building and running a small application ,I am getting Application output is ,"cannot run: No command given",what it means, and how to solve this..

[Asha]

After deleting that .pro file what will be the next step...

[Asha]

Hi,
I am very new this qt,please help me,getting error "cannot run: No command given",and the device is connecting but sftp connection is not showing anything...

[SGaist]

Did you check the settings of your project ?

[Marcel Meschenmoser]

Hey, I'm having the same or similar issue, see
(link [https://forum.qt.io/topic/111868/cannot-run-compiler-g-output/2])

deleting .pro.user file did not help
reinstalling qt did also not help

Somebody already found a solution?

[Juglugs]

I had the same error. sudo apt install build-essential worked for me.