Eclipse windows launch failed binary not found eclipse

Amazon When you run a C program in Eclipse C/C++ IDE, you may see an error window «Application Launcher» saying «Launch failed. Binary not found.» It’s frustrating because you have already installed the C compiler such as gcc/g++ compiler from equation.com or MinGW compiler from somewhere else. Your Eclipse is equipped with toolchains such as Cross GCC and MinGW GCC. So what’s wrong? How can you run your C project successfully in Eclipse CDT?

Solution

The solution is so simple you won’t believe it. Simply go to Project -> Build All (or press Ctrl+B) to build your project before you run it. Once you are done, run your program again and it should run successfully.

Why Eclipse doesn’t automatically build the C project before running it or print a meaningful message alluding to this fact is beyond me.

The above solution also works for the default «Hello World ANCI C Project» C project you create in Eclipse CDT. It’s a simple C program that prints out !!!Hello World!!!

If the solution didn’t work for you, try fixing errors in Errors section in Problems tab in the Eclipse IDE. Some errors are not real errors and they are due to Eclipse IDE not being able to resolve symbols; skip them. Fix errors that are real errors. Then Clean, Build All, and Run again.

Questions? Let me know!

For what it’s worth, I had this problem — and the cause was invalid DWARF 3 info in the binary in the selected project (which didn’t have any runnable binaries).

The way it work was something like this: I had two projects Main and Library. Main depended on the Library project and the former had an executable, while the latter just produced a static library (that Main linked against).

My run option was set to «Run/Debug -> Launch» setting was set to «launch current, otherwise last» as follows (see bottom right):

If I had the Main project selected, everything would work fine: it would launch the main project. If I had the Library project selected¹ it would fail with the error message given by the OP. The reason seemed to be this: since I had the Library project selected, the PE scanner would scan the binary files in the project to see if any were launchable, and because scanning was failing due to this bug the error message popped up before it ever got to «Launch the previously launched application».

I could work around it by:

1. Making sure the project I wanted to launch was selected, or …
2. Changing compilers to one that made DWARF info that Eclipse could parse without failure, or …
3. Selecting «Always launch the previously launched application» in the Run/Debug settings — although it might not be your preferred mode of operation.

¹ I wouldn’t usually select the project directly, of course, it would be indirectly selected because I was working in one of the source files it contained.

1. 05-26-2014

   
   

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   Running Program.cpp, get Launch Failed. Binary Not Found
   

   So I’m very new, I’ve recently setup Eclipse for C / C++, I’ve made a new C++ project with a Program.cpp, then I make a regular Hello World and when I run it I get the error, Launch Failed. Binary not found.

   My Code:

   Code:

   #include <iostream>
   using namespace std;
   
   int main()
   {
       cout << "Hello World!";
       return 0;
   }

   I have saved and CTRL + B on my project.
   What do I do to fix this?

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2. 05-26-2014

   
   

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   What is the exact error message? What binary was not found? The compiler, or your program executable?

   Originally Posted by Bjarne Stroustrup (2000-10-14)

   I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. «Finding the smallest program that demonstrates the error» is a powerful debugging tool.

   Look up a C++ Reference and learn How To Ask Questions The Smart Way

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3. 05-26-2014

   
   

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   I have eclipse, I click on the dropdown menu in the Run Button, and click Run as… Local C/C++ Application, then I just get a window message pop-up saying exactly:
   Launch Failed. Binary Not Found. and there’s an OK button on that very window, the window is named Application Launcher.

   Regards
   Augustas

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4. 05-26-2014

   
   

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   Did you build the project?

   Originally Posted by Bjarne Stroustrup (2000-10-14)

   I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. «Finding the smallest program that demonstrates the error» is a powerful debugging tool.

   Look up a C++ Reference and learn How To Ask Questions The Smart Way

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5. 05-26-2014

   
   

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   Yes as I’ve said in my post, look above, I have saved, and CTRL + B to build, multiple times and tried to run.
   EDIT: If you don’t use eclipse as your IDE then sorry, yes I’ve build by CTRL + B

   I’ve read online for many solutions and accomplished them, but still same error. Perhaps you could direct me to ways of checking if everything in Eclipse is setup right. Another issue is when I typed using namespace std;, it had an error for some time but then it went away and someone said you just wait and it will go away. I hope that helps.

   Last edited by augustas656; 05-26-2014 at 10:27 AM.

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6. 05-26-2014

   
   

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   Originally Posted by Bjarne Stroustrup (2000-10-14)

   I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. «Finding the smallest program that demonstrates the error» is a powerful debugging tool.

   Look up a C++ Reference and learn How To Ask Questions The Smart Way

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7. 05-26-2014

   
   

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   The default run, runs in debug mode, but debug mode gives me another error:
   ‘Launching Project Debug’ has encountered a problem.
   Error Starting Process.

   Details:
   Error starting process.
   Cannot run program «C:UsersAuguslavProgrammingC++ProjectProgram .cpp»: Launching failed
   Cannot run program «C:UsersAuguslavProgrammingC++ProjectProgram .cpp»: Launching failed
   Cannot run program «C:UsersAuguslavProgrammingC++ProjectProgram .cpp»: Launching failed

   Run Configuration
   http://i.imgur.com/HWNUNSr.png

   Regards
   Augustas

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8. 05-26-2014

   
   

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   If I click on Browse for project I can find Project, if I click then Search Project… in the Run Configuration It gives me a big box binaries, which I believe is the list from which I choose to select my program, the list of binaries is empty, look here:

   View post on imgur.com

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9. 05-26-2014

   
   

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   Hmm… one thing you could do is to refer to the configuration for the compiler to see where the compiled binaries are placed, then go to that directory and see if the binary is there.

   Originally Posted by Bjarne Stroustrup (2000-10-14)

   I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. «Finding the smallest program that demonstrates the error» is a powerful debugging tool.

   Look up a C++ Reference and learn How To Ask Questions The Smart Way

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10. 05-26-2014

    
    

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    Sorry, but how could I do this? I don’t really understand what you said, and therefore not sure what to click or where to go to get this fixed!

    EDIT: What I had done is instead of doing Search Project for the C/C++ Application path bar I did Browse… and I found the file and instead of just Program.cpp it’s now the entire path with the Program.cpp, but it still gets the same error, Debug has it’s error the same, and Local C/C++ Application run also has the Binary error.

    Regards
    Augustas

    Last edited by augustas656; 05-26-2014 at 10:52 AM.

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11. 05-26-2014

    
    

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    Perhaps it’s a problem with how I setup my IDE? So many different tutorials state so many different things… I’ve done one of them, and perhaps I’ve done something wrong, although I still not know of a way how to check if I’ve done something wrong.

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12. 05-26-2014

    
    

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    Try clicking on «Project» on the left panel and see what you get. There will probably be some kind of configuration box with the path to the build directory, perhaps specific to the configuration (e.g., in a debug configuration, the executable may be placed in a debug subdirectory). If this is really too hard, then perhaps you could consider Code::Blocks with the MinGW port of GCC bundled as an alternative IDE.

    Originally Posted by Bjarne Stroustrup (2000-10-14)

    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. «Finding the smallest program that demonstrates the error» is a powerful debugging tool.

    Look up a C++ Reference and learn How To Ask Questions The Smart Way

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13. 05-26-2014

    
    

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    If I left-click on «Project» on the left panel nothing happens, it just gets selected, I can right-click and it gives me a box of options, by right-clicking and going to properties I get this window: http://i.imgur.com/2bE3WzG.png

    EDIT: This is the options box when right-clicking project on the left panel: http://i.imgur.com/yHiCIfL.png

    Regards
    Augustas

    Last edited by augustas656; 05-26-2014 at 11:03 AM.

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14. 05-26-2014

    
    

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    Originally Posted by Bjarne Stroustrup (2000-10-14)

    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. «Finding the smallest program that demonstrates the error» is a powerful debugging tool.

    Look up a C++ Reference and learn How To Ask Questions The Smart Way

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15. 05-26-2014

    
    

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