Eclipse C++ : "Program "g++" not found in PATH"

Question

I have gpp installed in my Windows 7 (32 bit) as shown in the picture.

enter image description here

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?

enter image description here

maybe can help - http://stackoverflow.com/questions/20024817/eclipse-cant-find-mingw-why/20025165#20025165 — URL87, Dec 12 '13 at 09:44

score 26 · Answer 1 · answered Oct 03 '12 at 20:36

26

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.

answered Oct 03 '12 at 20:36

user1558573

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This helped me too. All was set up correctly, just the message was still showing. *Reset Defaults* in Preferences/C++/Build/Settings cleared the error for good. – compostus Dec 11 '12 at 12:42
1

Dont know why but this works for me when compiling GLUS with fresh install of mingw and eclipse c++ – Syaiful Nizam Yahya Jul 09 '15 at 05:02

score 18 · Answer 2 · edited Mar 29 '19 at 10:33

18

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.

edited Mar 29 '19 at 10:33

meJustAndrew

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answered Feb 10 '14 at 10:09

Shashank Saxena

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don't forget to add "C:\MinGW\bin" to your Windows Path variable! – Raphael Royer-Rivard Sep 10 '15 at 18:20
Note that if you have Eclipse open when installing MinGW or Cygwin, they won't show up as options until you've restarted Eclipse. – Zoomzoom Sep 13 '17 at 19:53

score 11 · Answer 3 · edited Dec 24 '12 at 08:24

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.

score 10 · Answer 4 · answered Jul 28 '12 at 18:01

10

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.

answered Jul 28 '12 at 18:01

ouah

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The same error exist even when I changed the path as suggested. – LCJ Jul 29 '12 at 07:04
Did you restart your `cmd.exe` after changing the `PATH`. Did you check you have the new path with `echo %PATH%`? – ouah Jul 29 '12 at 10:13
I have reatrted the system - hope that will restart cmd.exe also. How to set the path with echo? The environment variable name is "Path" not "PATH". Is that a problem? – LCJ Jul 29 '12 at 14:15

score 10 · Answer 5 · edited Dec 14 '15 at 23:49

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.

This has worked for me! Thanks a lot! MINGW_HOME =C:\msys64\mingw64, MSYS_HOME =C:\msys64 — Rushi Shah, Sep 11 '22 at 10:21

score 8 · Answer 6 · answered May 09 '13 at 15:09

8

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

answered May 09 '13 at 15:09

theten

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This worked! Nothing else here worked. Everything was setup correctly, but I had to uncheck `Build automatically`. Blah! – NateS Feb 15 '16 at 16:56

score 7 · Answer 7 · answered Apr 21 '16 at 06:21

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.

score 6 · Answer 8 · answered Jul 14 '13 at 08:28

The PATH is locate at Project Properties > C/C++ Build > Environment (see screenshot below).

enter image description here

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!

score 4 · Answer 9 · answered Dec 12 '13 at 09:35

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

score 3 · Answer 10 · edited Aug 15 '12 at 17:53

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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.

edited Aug 15 '12 at 17:53

Alfred

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answered Aug 15 '12 at 09:21

DamnHim

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score 3 · Answer 11 · answered Dec 06 '13 at 19:01

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.

score 2 · Answer 12 · answered Aug 20 '16 at 21:28

2

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

answered Aug 20 '16 at 21:28

yasser alaa eldin

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score 2 · Answer 13 · edited Mar 12 '20 at 10:56

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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

edited Mar 12 '20 at 10:56

JustSomeGuy

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answered Mar 12 '20 at 10:37

IkeVoodoo

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score 1 · Answer 14 · answered Apr 10 '13 at 02:29

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.

score 1 · Answer 15 · edited Apr 17 '18 at 05:02

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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.

edited Apr 17 '18 at 05:02

Samuel Liew

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answered Oct 16 '14 at 09:22

Mike

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score 1 · Answer 16 · answered May 17 '15 at 17:41

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.

score 1 · Answer 17 · answered Nov 11 '15 at 18:29

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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

answered Nov 11 '15 at 18:29

Achi Even-dar

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Thanks. Assuming this installation manager is in Eclipse, where can I find it? No match found in Help Search. This is V4.7.2. – ChrisJJ Feb 06 '18 at 12:19

score 1 · Answer 18 · edited Dec 31 '17 at 19:01

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

score 1 · Answer 19 · answered Feb 23 '17 at 00:27

1

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.

answered Feb 23 '17 at 00:27

autonomous

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score 1 · Answer 20 · answered May 23 '17 at 17:26

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.

score 1 · Answer 21 · edited Aug 28 '18 at 12:16

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

Blue Sea · Answer 22 · 2020-03-12T05:07:32.610

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.

Eclipse C++ : "Program "g++" not found in PATH"

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