I'm trying to learn how to use KDevelop on my Ubuntu 16.04 to write C++ code, and I installed it by doing this
sudo apt-get update
sudo apt-get install kdevelop
but after it is done installing and I'm trying to make a new project, and the lines at the top that says
#include <QtGui/QApplication>
and
#include <QtGui/QLabel>
#include <QtGui/QMenu>
#include <QtGui/QMenuBar>
#include <QtGui/QAction>
are all returning errors saying that the included files are not found? And ask me to add a custom include path. I checked my KDevelop version on the terminal and it says I have Qt, or at least I think that's what it meant.
~$ kdevelop --version
Qt: 4.8.7
KDE Development Platform: 4.14.16
KDevelop: 4.7.3
But then when I run
~$dpkg --list libqt4-dev
~$dpkg --list libqt4-core
~$dpkg --list libqt4-gui
and it says none of them are installed. I'm so confused. Do I have the right Qt or not? How do I get KDevelop to find the correct Qt path? Should I maybe just install all the libqt4-whatever and try again?
Remember to distinguish between libraries that allow you to run a software and developer versions that allow to build new sotfware. Output of kdevelop --version states versions of the libraries which are used to run the application. In your system you are missing qttools5-dev with its dependencies.
By the way, maybe you will try qtCreator? It is an IDE developed by Qt team, and if you install it just by apt install qtcreator than you will have all necessary dev libs.
Related
Using Ubuntu 16.04 LTS
I have cloned a repo that has nice software in it, however, I can't
find any valid instructions for solving the following issue.
When I try and build the software it sayes.
main.cpp:12:19: fatal error: glfw3.h: No such file or directory
I assume I need to install glfw3, also "locate glfw3" etc. returns nothing. My main.cpp program has this in it "#include "
How do you fix this ?
Thanks,
this may help
sudo apt-get install libglfw3 libglfw3-dev
and while including
#include <GLFW/glfw3.h>
$ apt-cache search glfw3
libglfw3 - portable library for OpenGL, window and input (libraries)
libglfw3-dev - portable library for OpenGL, window and input (development files)
libglfw3-doc - portable library for OpenGL, window and input (documentation)
So, just apt-get install it.
This approach shall be standard for any Ubuntu user.
The objective is to compile a C++ program with Boost.Python in Eclipse on the OS on Linux Mint 18. In particularly, we want to run the template program:
#include<boost/version.hpp>
#include<boost/python.hpp>
#include<iostream>
using namespace std;
int main() {
cout << "My first boost program with version: " << BOOST_LIB_VERSION << endl;
return 0;
}
This personally took me quite a while to get working, so the tutorial below should serve as a one-stop-shop reference for anyone in a similar situation. Note on software used:
Boost version: 1.62.0
Python version: 2.7.12
OS: Linux Mint 18 Xfce 64-bit
Eclipse version: CDT 9.1.0 for Eclipse Neon.1
Installing Eclipse CDT
Make sure that you have Java installed. For the Java JDK (if you want to also develop Java programs), run:
sudo apt-get install default-jdk
To simply run Java programs (such as Eclipse), you can install the lighter Java JRE:
sudo apt-get install default-jre
Both JDK and JRE will work, but JDK takes up more space.
Go to CDT download webpage and download the Linux 64-bit file eclipse-cpp-neon-1-linux-gtk-x86_64.tar.gz
Assuming you downloaded the file in ~/Downloads/, run the following command to unpack ("install") Eclipse into the /opt/ directory:
sudo tar zxvf ~/Downloads/eclipse-cpp-neon-1-linux-gtk-x86_64.tar.gz -C /opt/
To create a desktop launcher icon, run
sudo gedit ~/.local/share/applications/eclipse.desktop
and in the text editor copy-paste:
[Desktop Entry]
Name=Eclipse
Type=Application
Exec=/opt/eclipse/eclipse
Terminal=false
Icon=/opt/eclipse/icon.xpm
Comment=Integrated Development Environment
NoDisplay=false
Categories=Development;IDE;
Name[en]=Eclipse
You now have Eclipse installed, but you don't need to run it yet, just keep reading and following the instructions :)
Installing Boost
The instructions are more or less given here, but for the sake of cohesion I write them here.
Download boost_1_62_0.tar.gz
Assuming you downloaded the file into ~/Downloads/, run the following command to unpack Boost into the /usr/include/ directory:
sudo tar zxvf ~/Downloads/boost_1_62_0.tar.gz -C /usr/include/
It's as easy as that - you now have Boost... but that's not all yet. Read on :)
Building Boost.Python and Boost.System
The Boost libraries Boost.Python and Boost.System must be built before they can be used. Here's how you do this:
Go into the Boost directory in your Terminal:
cd /usr/include/boost_1_62_0/
Run the command:
sudo ./bootstrap.sh --prefix=/usr/local
To build Boost.Python and Boost.System into the /usr/local/lib folder, run:
sudo ./b2 install --with-system --with-python
once the command has finished, you will find libboost_system and libboost_python (with various file endings) in /usr/local/lib
That's it for building the necessary Boost libraries. Note that any other Boost library that needs to be built can be done in the same way.
Preparing Python 2.7
Linux Mint 18 comes with Python 2.7 pre-installed. For me, running the command python --version returns the output Python 2.7.12. I'll assume this is the same for you - but probably it doesn't make a difference what the version is. However, to get our objective of the C++ program with Boost.Python to build and run, you have to execute the additional command:
sudo apt-get install python-dev
which places some additional necessary files (particularly pyconfig.h) into /usr/include/python2.7.
Installing Linux GCC
Linux GCC allows you to compile C++ programs. To install everything necessary, simply run:
sudo apt-get install build-essential
Making our program run in Eclipse
Now we've got everything configured to be able to write, build and run our program in Eclipse. So, let's do it!
Run Eclipse, either from the terminal (either by using the desktop icon we've created or by running /opt/eclipse/eclipse in the Terminal).
If it's your first time running Eclipse, you'll be prompted to choose a workspace (basically, a folder where all Eclipse project files will be stored):
Now go to File -> New -> C++ Project and enter the following and click Finish (you can use whatever Location you wish, including the default location (i.e. the one of your workspace)):
Now go to File -> New -> Source File, enter the following and click Finish:
In the main.cpp file that automatically opens in the editor, type in the program that we want to compile (note that I customized my Eclipse layout, so it looks different from the default layout you might have):
Now the secret sauce. Go to Project -> Properties -> C/C++ Build -> Settings where you will see:
Go to GCC C++ Compiler -> Includes and, using the little icon that looks like a folder with a green plus sign, add the following Include paths:
Go to GCC C++ Linker -> Libraries and add the following Libraries and Library search paths:
Press OK to close the Project Properties window.
Back in the main Eclipse window, first click the hammer icon to build the project, then the green play icon to run it (both buttons are highlighted in the below screenshot). In the console view you will first see a successful build, then the Terminal output of our program:
That's it! We've achieved our objective of building and running a C++ program with the Boost.Python library included. That's the end of this tutorial, I hope it helped you :)
I have been trying to install GLFW and GLFW3, using Terminal to install
sudo apt-get install GLFW
sudo apt-get install GLFW3
Whenever I do so, I get results such as
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package glfw3
I have been trying to install GLFW for two hours now, and I'm getting a bit impatient. Also I'm very new to Linux (Mint), so I apologize if I'm doing something stupid...
EDIT:
No matter what I try, my program encounters
/home/myusername/Desktop/basic_window.cpp:11:21: fatal error: GL/glfw.h: No such file or directory
#include <GL/glfw.h>
^
compilation terminated.
Having a frustrating time with this, not sure why this is much more complicated than the other libraries I've installed so far.
I have been trying to install GLFW and GLFW3, using Terminal to install...
On Mint 17, it looks like you need to install libglfw2. So perform a sudo apt-get install libglfw2.
If you plan on developing against it, then install libglfw-dev instead. Notice the lack of a version number.
If interested, perform apt-cache search glfw
In Debian-based systems such as Ubuntu and Mint, library packages typically have names that begin with "lib", and development headers (for compiling new programs that use the library) are in a separate package whose name ends with "-dev".
Ubuntu 14.04 has GLFW 2 packaged as libglfw2 and libglfw-dev. Mint doesn't seem to have those packages, but you can probably use the Ubuntu ones since Mint 17 is based on Ubuntu 14.04.
GLFW 3 isn't in Ubuntu 14.04, but it looks like it'll be in 14.10 (as libglfw3 and libglfw3-dev).
Unless you really need GLFW 3 specifically, you're probably better off sticking with the packaged GLFW 2. Packages get easy automatic upgrades; compiling stuff "by hand" is a good way to end up with lots of cruft in your system with no automatic upgrade or uninstall.
Download GLFW source packages from their website.
Extract the folder glfw-3.0.4 from the tarball
Open console
Navigate to the folder you just extracted and go inside of it using cd
Type cmake . (be sure you include the dot)
If cmake . fails, then type the following as root:
apt-get install cmake
If you don't think you're root then type the following:
sudo apt-get install cmake
If that doesn't work then type the following as root, or add sudo if you're not root:
apt-get install build-essential cmake
Once you have cmake installed, navigate back to the folder and try cmake . again.
I just installed Ubuntu 12.10, and I tried to install Eclipse and C++, but I failed miserably.
I started with an installation from the Software Center, Eclipse worked, but only in Java. Then I started googling for installation guides and tutorials, but after hours of downloads and installations, the C++ in Eclipse still doesn't work.
So now I have two questions:
How do I clean up this mess?
Actually, how do I know if there is a mess?
According to the Ubuntu Software Center, Eclipse is installed and has three add-ons.
How do I know if the other installations of other Eclipse versions/packagings overwrote each other or if I have multiple installations?
How do I install the latest version of Eclipse and C++ in Ubuntu 12.10?
There is a package called eclipse-cdt in the Ubuntu 12.10 repositories, this is what you want. If you haven't got g++ already, you need to install that as well, so all you need is:
sudo apt-get install eclipse eclipse-cdt g++
Whether you messed up your system with your previous installation attempts depends heavily on how you did it. If you did it the safe way for trying out new packages not from repositories (i.e., only installed in your home folder, no sudos blindly copied from installation manuals...) you're definitely fine. Otherwise, you may well have thousands of stray files all over your file system now. In that case, run all uninstall scripts you can find for the things you installed, then install using apt-get and hope for the best.
I used (the suggested answer from above)
sudo apt-get install eclipse eclipse-cdt g++
but ONLY after then also doing
sudo eclipse -clean
Hope that also helps.
I also tried http://www.eclipse.org/cdt/ in Ubuntu 12.04.2 LTS and works fine!
First, I downloaded it from www.eclipse.org/downloads/, choosing Eclipse IDE for C/C++ Developers.
I save the file somewhere, let´s say into my home directory. Open a console or terminal, and type:
>>cd ~; tar xvzf eclipse*.tar.gz;
Remember for having Eclipse running in Linux, it is required a JVM, so download a jdk file e.g jdk-7u17-linux-i586.rpm (I cann´t post the link due to my low reputation) ... anyway
Install the .rpm file following http://www.wikihow.com/Install-Java-on-Linux
Find the path to the Java installation, by typing:
>>which java
I got /usr/bin/java. To start up Eclipse, type:
>>cd ~/eclipse; ./eclipse -vm /usr/bin/java
Also, once everything is installed, in the home directory, you can double-click the executable icon called eclipse, and then you´ll have it!. In case you like an icon, create a .desktop file in /usr/share/applications:
>>sudo gedit /usr/share/applications/eclipse.desktop
The .desktop file content is as follows:
[Desktop Entry]
Name=Eclipse
Type=Application
Exec="This is the path of the eclipse executable on your machine"
Terminal=false
Icon="This is the path of the icon.xpm file on your machine"
Comment=Integrated Development Environment
NoDisplay=false
Categories=Development;IDE
Name[en]=eclipse.desktop
Best luck!
I was in the same boat. Installed Eclipse, realized need CDT.
sudo apt-get install eclipse eclipse-cdt g++
This just adds the CDT package on top of existing installation - no un-installation etc. required.
http://www.eclipse.org/cdt/
^Give that a try
I have not used the CDT for eclipse but I do use Eclipse Java for Ubuntu 12.04 and it works wonders.
In Ubuntu, there is a package called uuid-dev. To install and use it, I just need to run apt-get install uuid-dev. However, in MinGW, I couldn't install this package using mingw-get install.
May I know what are the basic steps to port a C++ application/library from Ubuntu to MinGW?
It might already support compilation under MinGW. Generally you would download the source, unpack them and run ./configure and see what happens.
Give that a try and get back to me.