Installing Qtcreator on xubuntu

Dinesh123

I am a naive user of the Qt. I have installed Qt5. 5 on the xubuntu. But when I try to compile a basic program on the Qtcreator, it shows the error "compiler not set in the kit options".
I have tried to set but its not working.
Please help in this regard.
And moreover whether the Qt developer should not have provided all the settings? , The naive user like me face a lot difficulty.

sierdzio

Do you have gcc or clang installed? If not, run this in terminal:

sudo apt install build-essential

And then try again in Qt Creator.

I have tried to set but its not working.

Can you provide any more detail? What have you done, how did it fail?

Dinesh123

@sierdzio i have installed Qt5. 5 but when I try to build a basic program, it says compiler not set at the kit option.
Then I have read something about how to set compiler and followed that.
Now it says
Make:no such file or directory
fatal error: no input file

Please provide the details of the proper settings.

And moreover, why such settings is not happening automatically at the time of installation.

Dinesh123

@sierdzio for the command
Sudo apt install build - essential
It says no such depository

I have used qt-unified-x86-linux offline installer

jsulm

@Dinesh123 It is

apt install build-essential

without spaces between build - essential. And it is there in Xubuntu (18.04 which I'm using).

sierdzio

Qt 5.5? That's very old. Are you forced to use an ancient version of Qt? If not, get the online installer and install either Qt 5.12 or 5.14.

Make:no such file or directory

I think you are still missing basic compilation tools. Run sudo apt install build-essential (there are no spaces between words in build-essential!). It has to work, even on xubuntu.

fatal error: no input file

Or you are trying to compile a project without files?

And moreover, why such settings is not happening automatically at the time of installation.

Because in C++ world, the choice of compiler is up to you. Qt can work with clang or g++, and with a wide variety of compilator versions. It's your responsibility to set your dev environment, not Qt's.

Dinesh123

@sierdzio The command
Sudo apt-get install build-essential does not work.

The error is build-essential has no candidate.

I have used qt-unified-linux-x86-2.0.5-2-online.run
And performed the settings as mentioned in the following link
https://www.google.com/url?sa=t&source=web&rct=j&url=http://variwiki.com/images/8/8d/YoctoQtCreator.pdf&ved=2ahUKEwjXqf_as8_oAhWVwjgGHQPrBUMQFjAAegQIARAB&usg=AOvVaw3MYXNS1nzX5RLbjNdXaAJQ&cshid=1586025169512

And now it says

error :g++ command not found

While trying to build a basic application (gcc compiler set in the kit option ).
I am unable to understand what is going wrong.
Help to resolve this issue or provide proper Web link specifying the details of qtcreator settings.

SGaist

Hi,

Your issue currently is that your system is not properly setup and it's not a Qt Creator problem. All derivatives of Debian have the build-essential package which is meta package providing a set of tools for compilation and the rest.

If you have, first ensure that your package cache is up to date and use it to search that package. Please learn the tools to manage your Linux installation.

mrjj

Hi
what version of Xubuntu are you using?

if you cant do

sudo apt-get update
sudo apt-get install build-essential

Then something up with your installation.

Normally you do not need to setup Creator it find gcc by itself!

so i dont think you have gcc and tool chain installed as that comes from
build-essential.
So before even looking at Creator. You have to have a working gcc toolchain.

sierdzio

Are you building for Yocto (embedded Linux) targets? If no, then don't use instructions on how to set up for Yocto development. It won't help you get local dev env for Qt development.