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Editorial Team
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Asked: 2026-05-30T01:50:17+00:00

compiler says: Symbol ‘std’ could not be resolved Symbol ‘cout’ could not be resolved

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compiler says:
Symbol ‘std’ could not be resolved
Symbol ‘cout’ could not be resolved
Symbol ‘endl’ could not be resolved

It seems that it is a C compiler, but I really installed everything listed in CDT.

I tried searching but it’s all about windows. I’ve installed all the plugins in CDT.

Something strange is that the file was once compiled and printed “Hello world”. I can’t understand what is happening.

My os is osx lion (10.7.3). Hope someone can help me! Thanks!

My eclipse version is 3.7.
My cdt version is 8.0.0.

Here’s the code for helloworld.cpp

#include <iostream>

using namespace std;


int main() {


    cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!!

    return 0;

}
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1 Answer

  1. Editorial Team

    I fixed this by replace Indigo with an older version Helios, and it’s working fine. Hope someone can come up with other approaches to the problem without changing Eclipse version.

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