I had loaded the project to Eclipse but when I open the .cpp file, it like to open a text file.
Anyone know how to display the code-view in eclipse?
Please support.
Thank you so much.
I cannot find C/C++ in Window -> Preferences
Then you have no CDT installed – I suppose you got the version direct from the initial download page, but that's actually the java package – there's a link 'download packages' below, where you would have found the C++ package. Not too obvious, admitted.
Never mind, you don't need to re-install: Help -> About will reveil you your installed version's name ('Kepler', 'Luna', ...); via Help -> Install new packages you can add CDT plugin to your installation. Select under work with your release version of eclipse repository, e. g. http://download.eclipse.org/releases/photon.
Minimally, you need: C/C++ Development Tools, other plugins might be useful, too, like standalone debugger, call graph visualisation, unit testing support, auto tools support (configure, make; especially under linux), possibly LLVM support (if you want to use clang compiler), ...
My issue had been fixed.
Just do below steps in ubuntu:
Go to
https://www.eclipse.org/cdt/downloads.php and download newest CDT(C/C++ Develop Tool) version.
Copy the download file
eclipse-cpp-2018-12-R-linux-gtk-x86_64.tar.gz
to your folder in Ubuntu.
Extract
eclipse-cpp-2018-12-R-linux-gtk-x86_64.tar.gz
Run execute eclipse file -> Done.
I'm tasked with hooking up Google Test in Eclipse. I got Google Test working from the command-line, but we want it working like JUnit for Java in Eclipse. This is theoretically possible. However, running through all the online instructions I can find, they all say to use Run -> Run Configurations... -> C/C++ Unit option. For the life of me, I can't find it. Everything else is in the Run Configurations dialog, just not that item.
So I figured, even though we have Eclipse for C++ Developers installed (which should contain everything that the CDT Plug-in contains), maybe it's missing the unit testing stuff. Trying to update CDT, however, just shows that the only thing missing is the Autotools stuff (which we have no need for).
Vital statistics:
Eclipse version: Oxygen.1a Release (4.7.1a)
Operating System: Linux, CentOS
Compiler: gcc
I know that's the not the latest version of Oxygen. It's the latest we can use, because the current versions have a bug that doesn't recognize our code as valid C++.
How do I get the C/C++ Unit option in Run Configurations?
You need to install "C/C++ unit testing support" feature. Go to Help -> Install new software, select All available sites and search for it. Installing it will require Eclipse restart. After restart C++ unit test group will appear in the list of Debug configurations.
I'm trying to create a C++ project on eclipse. I have installed eclipse-cdt for that.
While creating a project, a pop up window asks for cross compiler prefix and cross compiler path. Could someone please explain what are those and what do I need to add in those fields? Are those fields absolutely necessary to fill?
If you are using a Mac, you can select MacOS GCC instead of Cross GCC. If you are on Windows, you will have to install a C++ compiler. I recommend you install Cygwin, try following the directions here.
https://www3.ntu.edu.sg/home/ehchua/programming/howto/eclipsecpp_howto.html
Once you've installed the C++ compiler, restart Eclipse and try to create the project again. Hope this helps.
In Cross compiler Prefix you need to write 'arm-none-eabi-' and in Cross compiler path you have to select the path for GCC bin folder. You need to install Cygwin GCC for this.
I have found few steps in below link.
https://www3.ntu.edu.sg/home/ehchua/programming/howto/Cygwin_HowTo.html#cygwin
Just in case anybody else is like me and needs more explicit directions as #yeremy is correct in that you have to select MacOSX GCC. It's just that at the point where the OP is, he overshot where he could have made the selection and needs to back up a few windows (about 3) to choose the MacOSX GCC as the Toolchain of choice. Attaching a link below which goes through the steps and which also shows image of window where you can make the selection (figure 11).
Getting Started with C++ for Eclipse - CodeGuru
When Eclipse doesn't detect a toolchain (to be installed separately) it only offers the option "Cross GCC". Don't choose that.
Sites like this tell you that a properly installed toolchain (Cygwin / MinGW) is automatically discovered using the PATH environment variable. This is not the case on my machine.
There's no way to configure a toolchain in Eclipse manually (as of writing) but you can fool Eclipse into finding one without changing your global PATH:
Go to Preferences/C/C++/Build/Environment,
Add a variable PATH and point it to your toolchain path(s), e.g. d:\Mingw\bin;d:\Mingw\msys\1.0\bin. Separate paths with a semicolon.
For newbies just starting out C++ projects in Eclipse:
1 - Click File --> New--> C/C++ Project
2 - In the "Templates for New C/C++ Project" window, Select C++ Managed Build --> Click Next
3 - Provide a project name --> Select "Empty Project" in Project Type section (which is under Executable) and Select "MinGW GCC" in the Toolchains section
4 - Click Finish
Note: Selecting "MinGW GCC" will eliminate the headache of inputting the Cross GCC related prefix and path. Happy C++ learning.
enter image description here
I'm trying to use Qt4 using the Code::Blocks IDE. I'm running Linux Mint and I'm getting some errors. I looked around and found some people that had the same problem as me, but I can't seem to get their solutions working on my computer.
I installed Qt4 using the command
sudo apt-get install qt4-dev-tools
And when I type whereis qt4, I get qt4: /usr/lib/qt4 /usr/include/qt4 /usr/share/qt4
If I select "Create new Projet" in Code::Blocks and Select Qt4 project, it asks for Qt's location, which is $(#qt4) by default. If I click next, it says Code::Blocks doesn't know the "qt4" variable and gives me a prompt to set the base location, the include directory, etc.
Since I don't have any idea as to what I should be putting in there since nothing works (either it says "QTCore cannot be found in the specified directory", or the "lib" directory couldn't be found, etc.).
I tried what was posted on this forum: http://crunchbang.org/forums/viewtopic.php?id=18210, but it didn't solve my problem and I get the same errors.
In the "/usr/share/qt4" directory, there's a link to the "include" directory, but not to the "lib" directory.
I'm pretty new to Linux and all of this, so I'd like it if the answer was very detailed explaining what I did wrong / what I have to do.
Install the QtSDK
As a first step I would advise you to download directly the QtSDK, from the project site here.
Note: You could also use the precompiled version for your Mint version,
but in my personal experience, when working with external SDK,
you have more independence in development, it also allows you to work
freely with multiple versions of Qt simultaneously without move any
dependence of your OS.
You can follow the graphics steps to install the SDK, I advise you to check the option "download source", later this is going to be used for debugging code, and if necessary will allow the recompilation of some classes.
Now your QtSDK is installed on the folder eg "/usr/local"
So, all references inside your IDE should refer to this location.
Install the C::B
You can use the version available in "Software Manager"
Configure the C::B
When we start a new project and asks the location of our SDK we indicate this directory /usr/local/QtSDK/Desktop/Qt/4.8.1/gcc
Now the project is ready!
Note: "/usr/local" and "4.8.1" are variables depending on where
and what version you have installed.
Is very likely that your build directory, is not correctly assigned in "Settings->Compiler and Debugger->Toolchain ...->Compiler's Directory"
will be the default "usr" which should be replaced by "/usr/bin"
Now, when compiling with the standard project ".pro" and if your project has the requirement to use a "moc" tool strategy, the simplest way to do that, is use a customized Makefile, with all stages of compilation.
To learn how to make a customized makefile, you can read this answer.
And although I would advise again:
Although that CB is an optimal environment for working with wxWidgets, and C/C++ in general, I personally think that in the case of working with Qt, QtCreator provides a development environment more native and optimized to work with your projects QT.
I have gpp installed in my Windows 7 (32 bit) as shown in the picture.
PATH variable gas g++
"%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\cygnus\cygwin-b20\H-i586-cygwin32\bin\g++"
Still eclipse shows the error:
"Program "g++" not found in PATH".
How can this be resolved?
Today I have bumped into this problem and solved it in the following way. I pressed "Reset defaults" button everywhere I could find it in Eclipse settings (for example, Preferences/C++/Build/Settings/Discovery). After that the error disappeared and the code compiled successfully.
This is how I got rid of it:
Install the MinGW.
Select all files in the Basic Setup and select apply the changes.
Select new C++ Project You will be able to see "MinGW GCC" in the toolchain section select the same and create project.
You need a gcc, g++ compiler toolchain (on your windows machine) for the eclipse which you have manually downloaded,
One of the options can be done implicit via cygwin installation(by selecting proper development packages for gcc, g++) and then add the location of the compiled gcc ,g++ package like C:\cygwin\etc\alternatives to the PATH variable for windows environment.
After this open eclipse and go to Project->properties->C/C++ Tool Chain Editor and add replace default GNU C++ compiler and GNU C Compiler with Cygwin C++ compiler and Cygwin C compiler and rebuild the project. The errors related to gcc, g++ PATH not found will now be gone.
You need:
C:\cygnus\cygwin-b20\H-i586-cygwin32\bin
in the PATH.
and not
C:\cygnus\cygwin-b20\H-i586-cygwin32\bin\g++
as you wrote.
I got the same problem with mingw-64 (x86_64-4.9.1-release-posix-seh-rt_v3-rev1), Eclipse Luna 4.4.1 and CDT 8.5.0.201409172108, using Windows 7.
I solved this problem by putting the following two environment variables under
Window -> Preferences -> C/C++ -> Build-> Environment
name: MINGW_HOME value: (mingw installation directory without "\bin")
name: MSYS_HOME value: (msys installation directory without "\bin")
You can check
Window -> Preferences -> C/C++ -> Build -> Settings -> Discovery -> CDT GCC
Built-in Compiler Settings MinGW [ Shared ]
, if it doesn't complain "Toolchain MinGW GCC is not detected on this system" then you're all set.
I had the same problem, the only solution that worked for me was this:
Open command-line and check whether "g++" actually executes the compiler
If (1) works, uncheck Project->Build automatically in Eclipse
Clean project
Build project
I had the same problem: Eclipse couldn't find (g++) and (gcc) in PATH even they were accessible from command-line. I was also sure they are pointed by PATH correctly.
I have just deleted the (.metadata) folder from Eclipse's Workspace as a mean to reset it and this worked for me.
The PATH is locate at Project Properties > C/C++ Build > Environment (see screenshot below).
For your reference, I am using MinGW, I got the same error before I got the MSYS install. Later I found out that I also need MSYS to be install because the make.exe wasn't come with MinGW. (I don't this error was cause be MSYS.)
After MSYS is installed, add MSYS and MinGW path into environment variable, restart Eclipse. Remember to rebuild your project in order to rectify the error. If error still persist after restart, recreate the workspace. At least this has solved the problem on my site, hopes this help on you too.
Good luck!
I had a similar problem. The error is raised, but the code is compiled and linked. The error was caused by the Error Parser using a different configuration than the one that is compiled.
The error parser configuration was only valid for the Linux configuration of my software. My active configuration was set for MinGW and Windows.
Solution:
In Elipse under Windows->Preferences->C/C++->Indexer set Build Configuration for the indexer to Use active build configuration.
Clean and rebuild, otherwise the old errors will remain visible
Maybe it has nothing to do here, but it could be useful for someone.
I installed jdk on: D:\Program Files\Java\jdk1.7.0_06\bin
So I added it to %PATH% variable and checked it on cmd and everything was ok, but Eclipse kept showing me that error.
I used quotation marks on %PATH% so it reads something like:
%SYSTEMROOT%\System32;"D:\Program Files\Java\jdk1.7.0_06\bin"
and problem solved.
I had similar problem and I solved it by:
Installing g++ The GNU C++ compiler using Ubuntu Software Center
Changing in: Window -> Preferences -> C/C++ -> Build -> Settings -> Discovery -> CDT GCC Build in Complier Settings [Shared]
from: ${COMMAND} -E -P -v -dD "${INPUTS}"
to: /usr/bin/${COMMAND} -E -P -v -dD "${INPUTS}"
I hope it helps.
I had the same problem in Sublime..
Right click on my computer
Advanced system settings
Environment variables
in system variables, change path to location of '...\MinGW\bin'
Example: D:\work\sublime\MinGW\bin
For me it got fixed with:
Go to:
Window -> Preferences -> C/C++ -> Build -> Environment
Then press "Add..."
Name: MINGW_HOME
Value: C:\MinGW (yours might be different if you choose a custom path)
Hit "Apply and Close"
Now, it shoud work if you did everything correctly
i think cgywin might not work for you as you can only compile your code in Win7 if you fire up the command prompt; you need to use MinGW compiler toolset instead. After you have install your compiler, go to Properties->C/C++ Build->Tool Chain Editor -> Change your current toolchain to MinGW GCC.
WINDOWS 7
If there is anyone new reading this, make sure to simply try a clean install of mingw before any of this. It will save you sooooo much time if that is your problem.
I opened up wingw installer, selected every program for removal, apply changes (under installation tab, upper left corner), closed out, went back in and installed every file (in "Basic Setup" section) availible. after that eclipse worked fine using "MinGW GCC" toolchain when starting a new C++ project.
I hope this works for someone else.
If not, I would do a reinstall of JDK (Java Developer's Kit) and ECLIPSE as well. I have a 64bit system but I could only get the 32bit versions of Eclipse and JDK to work together.
In my case, I didnt mark for instalation the mingw32-gcc-g++ package in the installation manager, that's why eclipse didn't know it.
Needed to go to the instalation manager, mark it (in basic setup tab) and update catalogue
If you have your PATH setup and you can see g++ --version via the command line, then try to delete the project and create a new c++ project.
So the reset defaults might work but I think it has to update the PATH if it wasn't added before.
Had this problem on windows 10, eclipse Neon Release (4.6.0) and MSYS2 installed.
Eclipse kept complaining that "Program 'g++' not found in PATH” and "Program 'gcc' not found in PATH”, yet it was compiling and running my C++ code.
From the command prompt, I could run g++.
Solution was to define the C++ Environmental variable for eclipse called 'PATH' to point to windows variable called 'path' also $(Path).
Menus: Preferences>>C/C++>>Build>>Environment
Looks like eclipse is case sensitive with the name of this environmental, while windows doesn't care about the case.
First Install MinGW or other C/C++ compiler as it's required by Eclipse C++.
Use https://sourceforge.net/projects/mingw-w64/
as unbelievably the download.cnet.com's version has malware attached.
Back to Eclipse.
Now in all those path settings that the Eclipse Help manual talks about INSTEAD of typing the path, Select Variables and
**MINGW_HOME**
and do so for all instances which would ask for the compiler's path.
First would be to click Preferences of the whatever project and C/C++ General then Paths and Symbols and add the
**MINGW_HOME** to those paths of for the compiler.
Next simply add the home directory to the Build Variables under the C++/C Build
Build Variables Screen Capture
All the tips did not work for me using the Gaisler Tools for GR712RC Installation for OS RTEMS.
I'm using the Eclipse Kepler.
The simple way was making a copy of sparc-rtems-gcc.exe to gcc.exe, and sparc-rtems-g++.exe to g++.exe, in the C:\opt\rtems-4.10-mingw\bin directory.
The reason is that eclipse cannot find your gcc or g++ environment variable path.
You might have tried to run c or c++ or fortran but eclipse cannot find out the compiler.
So, add the path in your environment variable.
Windows -> Search -environment variables -> click on environmental variables at bottom.
Click on path ->edit -> new -> your variable path
Path should be entire, for example:
C:\Users\mahidhai\cygwin64\usr\sbin
Make sure that the variable is permanently stored. It is not erased after you close the environment variables GUI.
Sometimes you might find it difficult to add a path variable.
Make sure windows is updated.
Even if Windows is updated and you have problems, directly go to the registry and navigate to the below.
HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment
Add your path here. Remove any unnecessary repetitions of path variables.
Note:
You need to add your path variables in system environment variables -path
enter image description hereIf you just want to run C program but meet this error, it might mean that MinGw c++ compiler has not been installed even if "C:\MinGW\bin" has already been added to Windows Path variable.
Solution:
Run "mingw-get-setup.exe" to open MinGW Installation Manager
Open All Packages->MinGw->MinGW Base System->MinGW Compiler Suite
Select the following compilers to install:
. mingw32-gcc-g++
. mingw32-gcc-v3-core
. mingw32-gcc-vc-g++
Click Installation->Apply Changes to apply the above changes
Wait for the installation finishing(There might be some errors, just ignore them).
Restart Eclipse.
Done.
It Worked in my environment.
Hope it works in your case.