Symbol 'cout' could not be resolved [message #1080966] |
Tue, 06 August 2013 16:12 |
Eclipse User |
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Hello,
I'm starting with Eclipse, but I cannot seem to be able to compile a
simple C++ Hello World program. On build, I have 2 errors:
Symbol 'cout' could not be resolved
Symbol 'endl' could not be resolved
I'm running:
* IDE: Eclipse-CDT, Version: Kepler Release, Build id: 20130614-0229 32-
bits
* JAVA: JRE 32-bits 1.7.0_25-b17
* Toolchain: MinGw: mingw-get-inst-20120426.exe with compilers for C, C+
+, and MSYS Basic System
* OS: Windows 7 Professional 64-bits
The program:
=========== START ============
#include <iostream>
using namespace std;
int main() {
std::cout << "!!!Hello World!!!" << std::endl; // prints !!!Hello
World!!!
return 0;
}
=========== END ============
I'm using toolchain MinGW GCC, with CDT Internal Builder. Environment
variables are:
MINGW_HOME = C:\MinGW
MSYS_HOME = C:\MinGW\msys\1.0
PATH = ${MINGW_HOME}\bin;${MSYS_HOME}\bin;C:/Program Files (x86)/Java/jre7/
bin/client;C:/Program Files (x86)/Java/jre7/bin;C:/Program Files (x86)/
Java/jre7/lib/i386;;C:\Program Files (x86)\GTK2-Runtime\bin;C:\eclipse;
(etc)
Om C/C++ Build > Settings > Tool Settings > GCC C++ Compiler > Includes I
have added C:\MinGW\lib\gcc\mingw32\4.6.2\include\c++\
Everything else is set to defaults.
When I save and build the project, I get
09:32:32 **** Incremental Build of configuration Debug for project
Eclipse-002 ****
Info: Internal Builder is used for build
g++ -O0 -g3 -Wall -c -fmessage-length=0 -o "src\\Eclipse-002.o" "..\\src\
\Eclipse-002.cpp"
09:32:32 Build Finished (took 90ms)
Unresolved Inclusions shows <iostream>, even though it's located at C:
\MinGW\lib\gcc\mingw32\4.6.2\include\c++\ and it's part of the GCC C++
includes.
I've been googling for a couple of days with no luck. I've removed
Eclipse, installed it from scratch. I had Cygwin installed besides MinGw
and I removed it. I've tried with "std::cout" and without "std::" .
I'm sure I'm overlooking something simple :/
Thank you in advance.
--
Sinner
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Re: Symbol 'cout' could not be resolved [message #1081813 is a reply to message #1081502] |
Wed, 07 August 2013 18:25 |
Eclipse User |
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On Wed, 07 Aug 2013 11:53:18 +0200, Axel Mueller wrote:
> That is *not* a compiler error. It is an error from the static code
> analyzer. In the Problems View you can distinguish between compiler and
> code analyzer errors via the column problem type. In the editor there
> are different icons.
> But back to your problem. In your case it is a false warning. The code
> analyzer (CODAN) does not recognize the symbol "cout" because it does
> not find the system includes (iostream). Eclipse usually automatically
> finds the correct system includes (so need for you to add them in C/C++
> Build > Settings > Tool Settings > GCC C++ Compiler > Includes ).
> However, to find these includes Eclipse needs to know where MinGW is
> installed. You correctly configured environment variables for MinGW. But
> there is a bug with respect to the scanner discovery in Eclipse (the
> part that looks for the system includes etc.). It seems to ignore your
> PATH settings. I would suggest that you modify the PATH variable in
> Windows directly and then start Eclipse. Then you should rebuild the
> index (Project->Index->rebuild).
Axel,
Thank you for your message.
You were correct: not a compiler problem, it was a PATH problem with MinGW.
In the end I had to remove MinGW and install it from scratch, as the very
slow pipe to the Internet messed up the installation several times.
Now, with a complete (so far!) install of MinGW I can compile and run
projects from Eclipse.
Thank you again.
--
Salut,
Sinner
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