Sometimes <iostream> found and compiles and sometimes not!

andreyc

Are there any differences in the .pro files except of different source files ?

BOHICAMAN

Nope, identical.

BOHICAMAN

Bad .pro
@
#-------------------------------------------------

Project created by QtCreator 2014-06-26T11:23:54

#-------------------------------------------------

QT += core

QT -= gui

TARGET = VehicleClass
CONFIG += console
CONFIG -= app_bundle

TEMPLATE = app

SOURCES += main.cpp
@

Good .pro
@
#-------------------------------------------------

Project created by QtCreator 2014-06-26T14:16:26

#-------------------------------------------------

QT += core

QT -= gui

TARGET = HelpClass
CONFIG += console
CONFIG -= app_bundle

TEMPLATE = app

SOURCES += main.cpp
@

andreyc

What if you try to run "Clean", "Run qmake", and "Rebuild" for both projects.

BOHICAMAN

Didn't work. Now neither compiles. I get that same error message for both. No idea what's wrong!!

andreyc

Do you have iostream file on your computer ?

[EDIT] What version of Qt do you use ?

BOHICAMAN

Yea, looked it up and it's in the "include" folder of MSVC2013

Qt 5.3.0 using QtCreator 3.1.1

It's been working fine till today. Haven't added any new programs, updates, etc. Nothings changed that I know of. Also checked and no viruses according to Norton!

BOHICAMAN

Also, the "good" program was re-compiling until just now. Beats me what's going on!!

BOHICAMAN

I've got to head to a meeting now. I really appreciate all your help and assistance!! If you think of anything else, I'll be checking in later. Again, thanks!!

Bob

andreyc

Try to add to you .pro file
@
INCLUDEPATH += C:/path/to/MSVC2013/include
DEPENDPATH += C:/path/to/MSVC2013/include
@

BOHICAMAN

Nope, didn't work.

BOHICAMAN

I put in a few other programs I wrote that worked and I re-built them tonight. After the rebuild, same problem. I'm thinking it's the compiler. Nothing in the coding changed.

andreyc

Have you changed the compiler recently, may some Windows updates ?
If you have Visual Studio, try to create simple Hello World in VS and compile it.
Compare compiler flags.

BOHICAMAN

Had problem with VS 2013. Deleted it and now re-downloading. Will have to wait till tomorrow to try it. Thanks!

BOHICAMAN

Compiler was the problem!! After re-downloading it, I ran the programs again and all compiled and ran perfectly.

Andreyc, Thanks for the help!!

Bob

Hareen Laks

I just changed the Mingw version in kit. Then my problem solved.