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Home » Language IDEs » C / C++ IDE (CDT) » Symbol 'std' could not be resolved(Empty Project gives me this error while Hello World C++ Project does not.)
Symbol 'std' could not be resolved [message #1005524] Fri, 25 January 2013 19:00
Peter Feng is currently offline Peter Feng
Messages: 1
Registered: January 2013
Junior Member
Hello there, I've seen that this is a somewhat common problem through the magic of google but I have been unable to fix it according to what other people have suggested.

#include <iostream>
using namespace std;

int main() {
cout << "dafuq" << endl; // prints
return 0;
}

Is the code, with errors with using namespace std, and as a result error with cout.

For some reason this only occurs when I create a new C++ project -> Empty Project -> Cross GCC. If I create a new C++ project -> Hello World C++ Project I get no problems with using namespace std. I have tried googling for this specific difference but the results were too muddled with other Hello World instances.

I do have g++ installed as I have run sudo apt-get install g++ and all it did was tell me it's installed.

From a different thread http://www.eclipse.org/forums/index.php/t/288339/ they mentioned to show the output in a dedicated console. Below I have pasted what it prints. Hopefully there is some information there as to why this problem is occuring.

gcc -E -P -v -dD /home/dt/workspace/.metadata/.plugins/org.eclipse.cdt.make.core/specs.c
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-linux-gnu/4.6/lto-wrapper
Target: i686-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.6.3-1ubuntu5' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --enable-objc-gc --enable-targets=all --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=i686-linux-gnu --host=i686-linux-gnu --target=i686-linux-gnu
#define __STDC__ 1
Thread model: posix
#define __STDC_HOSTED__ 1
gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
#define __GNUC__ 4
#define __GNUC_MINOR__ 6
#define __GNUC_PATCHLEVEL__ 3
#define __VERSION__ "4.6.3"
#define __FINITE_MATH_ONLY__ 0
#define __SIZEOF_INT__ 4
#define __SIZEOF_LONG__ 4
#define __SIZEOF_LONG_LONG__ 8
#define __SIZEOF_SHORT__ 2
#define __SIZEOF_FLOAT__ 4
#define __SIZEOF_DOUBLE__ 8
#define __SIZEOF_LONG_DOUBLE__ 12
#define __SIZEOF_SIZE_T__ 4
#define __CHAR_BIT__ 8
#define __BIGGEST_ALIGNMENT__ 16
#define __ORDER_LITTLE_ENDIAN__ 1234
#define __ORDER_BIG_ENDIAN__ 4321
#define __ORDER_PDP_ENDIAN__ 3412
#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
#define __FLOAT_WORD_ORDER__ __ORDER_LITTLE_ENDIAN__
#define __SIZEOF_POINTER__ 4
#define __SIZE_TYPE__ unsigned int
#define __PTRDIFF_TYPE__ int
#define __WCHAR_TYPE__ int
#define __WINT_TYPE__ unsigned int
#define __INTMAX_TYPE__ long long int
#define __UINTMAX_TYPE__ long long unsigned int
#define __CHAR16_TYPE__ short unsigned int
#define __CHAR32_TYPE__ unsigned int
#define __SIG_ATOMIC_TYPE__ int
#define __INT8_TYPE__ signed char
#define __INT16_TYPE__ short int
#define __INT32_TYPE__ int
#define __INT64_TYPE__ long long int
#define __UINT8_TYPE__ unsigned char
#define __UINT16_TYPE__ short unsigned int
#define __UINT32_TYPE__ unsigned int
#define __UINT64_TYPE__ long long unsigned int
#define __INT_LEAST8_TYPE__ signed char
#define __INT_LEAST16_TYPE__ short int
#define __INT_LEAST32_TYPE__ int
#define __INT_LEAST64_TYPE__ long long int
#define __UINT_LEAST8_TYPE__ unsigned char
#define __UINT_LEAST16_TYPE__ short unsigned int
#define __UINT_LEAST32_TYPE__ unsigned int
#define __UINT_LEAST64_TYPE__ long long unsigned int
#define __INT_FAST8_TYPE__ signed char
#define __INT_FAST16_TYPE__ int
#define __INT_FAST32_TYPE__ int
#define __INT_FAST64_TYPE__ long long int
#define __UINT_FAST8_TYPE__ unsigned char
#define __UINT_FAST16_TYPE__ unsigned int
COLLECT_GCC_OPTIONS='-E' '-P' '-v' '-dD' '-mtune=generic' '-march=i686'
/usr/lib/gcc/i686-linux-gnu/4.6/cc1 -E -quiet -v -P -imultilib . -imultiarch i386-linux-gnu /home/dragpent/workspace/.metadata/.plugins/org.eclipse.cdt.make.core/specs.c -mtune=generic -march=i686 -fstack-protector -dD
#define __UINT_FAST32_TYPE__ unsigned int
#define __UINT_FAST64_TYPE__ long long unsigned int
#define __INTPTR_TYPE__ int
#define __UINTPTR_TYPE__ unsigned int
#define __GXX_ABI_VERSION 1002
#define __SCHAR_MAX__ 127
#define __SHRT_MAX__ 32767
#define __INT_MAX__ 2147483647
#define __LONG_MAX__ 2147483647L
#define __LONG_LONG_MAX__ 9223372036854775807LL
#define __WCHAR_MAX__ 2147483647
#define __WCHAR_MIN__ (-__WCHAR_MAX__ - 1)
#define __WINT_MAX__ 4294967295U
#define __WINT_MIN__ 0U
#define __PTRDIFF_MAX__ 2147483647
#define __SIZE_MAX__ 4294967295U
#define __INTMAX_MAX__ 9223372036854775807LL
#define __INTMAX_C(c) c ## LL
#define __UINTMAX_MAX__ 18446744073709551615ULL
#define __UINTMAX_C(c) c ## ULL
#define __SIG_ATOMIC_MAX__ 2147483647
#define __SIG_ATOMIC_MIN__ (-__SIG_ATOMIC_MAX__ - 1)
#define __INT8_MAX__ 127
#define __INT16_MAX__ 32767
#define __INT32_MAX__ 2147483647
#define __INT64_MAX__ 9223372036854775807LL
#define __UINT8_MAX__ 255
#define __UINT16_MAX__ 65535
#define __UINT32_MAX__ 4294967295U
#define __UINT64_MAX__ 18446744073709551615ULL
#define __INT_LEAST8_MAX__ 127
#define __INT8_C(c) c
#define __INT_LEAST16_MAX__ 32767
#define __INT16_C(c) c
#define __INT_LEAST32_MAX__ 2147483647
#define __INT32_C(c) c
#define __INT_LEAST64_MAX__ 9223372036854775807LL
#define __INT64_C(c) c ## LL
#define __UINT_LEAST8_MAX__ 255
#define __UINT8_C(c) c
#define __UINT_LEAST16_MAX__ 65535
#define __UINT16_C(c) c
#define __UINT_LEAST32_MAX__ 4294967295U
#define __UINT32_C(c) c ## U
#define __UINT_LEAST64_MAX__ 18446744073709551615ULL
#define __UINT64_C(c) c ## ULL
#define __INT_FAST8_MAX__ 127
#define __INT_FAST16_MAX__ 2147483647
#define __INT_FAST32_MAX__ 2147483647
ignoring nonexistent directory "/usr/local/include/i386-linux-gnu"
ignoring nonexistent directory "/usr/lib/gcc/i686-linux-gnu/4.6/../../../../i686-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/gcc/i686-linux-gnu/4.6/include
/usr/local/include
/usr/lib/gcc/i686-linux-gnu/4.6/include-fixed
/usr/include/i386-linux-gnu
/usr/include
End of search list.
COMPILER_PATH=/usr/lib/gcc/i686-linux-gnu/4.6/:/usr/lib/gcc/i686-linux-gnu/4.6/:/usr/lib/gcc/i686-linux-gnu/:/usr/lib/gcc/i686-linux-gnu/4.6/:/usr/lib/gcc/i686-linux-gnu/
#define __INT_FAST64_MAX__ 9223372036854775807LL
#define __UINT_FAST8_MAX__ 255
#define __UINT_FAST16_MAX__ 4294967295U
#define __UINT_FAST32_MAX__ 4294967295U
#define __UINT_FAST64_MAX__ 18446744073709551615ULL
#define __INTPTR_MAX__ 2147483647
#define __UINTPTR_MAX__ 4294967295U
#define __FLT_EVAL_METHOD__ 2
#define __DEC_EVAL_METHOD__ 2
#define __FLT_RADIX__ 2
#define __FLT_MANT_DIG__ 24
#define __FLT_DIG__ 6
#define __FLT_MIN_EXP__ (-125)
#define __FLT_MIN_10_EXP__ (-37)
#define __FLT_MAX_EXP__ 128
#define __FLT_MAX_10_EXP__ 38
#define __FLT_DECIMAL_DIG__ 9
#define __FLT_MAX__ 3.40282346638528859812e+38F
#define __FLT_MIN__ 1.17549435082228750797e-38F
#define __FLT_EPSILON__ 1.19209289550781250000e-7F
#define __FLT_DENORM_MIN__ 1.40129846432481707092e-45F
#define __FLT_HAS_DENORM__ 1
#define __FLT_HAS_INFINITY__ 1
#define __FLT_HAS_QUIET_NAN__ 1
#define __DBL_MANT_DIG__ 53
#define __DBL_DIG__ 15
#define __DBL_MIN_EXP__ (-1021)
#define __DBL_MIN_10_EXP__ (-307)
#define __DBL_MAX_EXP__ 1024
#define __DBL_MAX_10_EXP__ 308
#define __DBL_DECIMAL_DIG__ 17
#define __DBL_MAX__ ((double)1.79769313486231570815e+308L)
#define __DBL_MIN__ ((double)2.22507385850720138309e-308L)
#define __DBL_EPSILON__ ((double)2.22044604925031308085e-16L)
#define __DBL_DENORM_MIN__ ((double)4.94065645841246544177e-324L)
#define __DBL_HAS_DENORM__ 1
#define __DBL_HAS_INFINITY__ 1
#define __DBL_HAS_QUIET_NAN__ 1
#define __LDBL_MANT_DIG__ 64
#define __LDBL_DIG__ 18
#define __LDBL_MIN_EXP__ (-16381)
#define __LDBL_MIN_10_EXP__ (-4931)
#define __LDBL_MAX_EXP__ 16384
LIBRARY_PATH=/usr/lib/gcc/i686-linux-gnu/4.6/:/usr/lib/gcc/i686-linux-gnu/4.6/../../../i386-linux-gnu/:/usr/lib/gcc/i686-linux-gnu/4.6/../../../../lib/:/lib/i386-linux-gnu/:/lib/../lib/:/usr/lib/i386-linux-gnu/:/usr/lib/../lib/:/usr/lib/gcc/i686-linux-gnu/4.6/../../../:/lib/:/usr/lib/
#define __LDBL_MAX_10_EXP__ 4932
#define __DECIMAL_DIG__ 21
#define __LDBL_MAX__ 1.18973149535723176502e+4932L
#define __LDBL_MIN__ 3.36210314311209350626e-4932L
#define __LDBL_EPSILON__ 1.08420217248550443401e-19L
#define __LDBL_DENORM_MIN__ 3.64519953188247460253e-4951L
#define __LDBL_HAS_DENORM__ 1
#define __LDBL_HAS_INFINITY__ 1
#define __LDBL_HAS_QUIET_NAN__ 1
#define __DEC32_MANT_DIG__ 7
#define __DEC32_MIN_EXP__ (-94)
#define __DEC32_MAX_EXP__ 97
#define __DEC32_MIN__ 1E-95DF
#define __DEC32_MAX__ 9.999999E96DF
#define __DEC32_EPSILON__ 1E-6DF
#define __DEC32_SUBNORMAL_MIN__ 0.000001E-95DF
#define __DEC64_MANT_DIG__ 16
#define __DEC64_MIN_EXP__ (-382)
#define __DEC64_MAX_EXP__ 385
#define __DEC64_MIN__ 1E-383DD
#define __DEC64_MAX__ 9.999999999999999E384DD
#define __DEC64_EPSILON__ 1E-15DD
#define __DEC64_SUBNORMAL_MIN__ 0.000000000000001E-383DD
#define __DEC128_MANT_DIG__ 34
#define __DEC128_MIN_EXP__ (-6142)
#define __DEC128_MAX_EXP__ 6145
#define __DEC128_MIN__ 1E-6143DL
#define __DEC128_MAX__ 9.999999999999999999999999999999999E6144DL
COLLECT_GCC_OPTIONS='-E' '-P' '-v' '-dD' '-mtune=generic' '-march=i686'
#define __DEC128_EPSILON__ 1E-33DL
#define __DEC128_SUBNORMAL_MIN__ 0.000000000000000000000000000000001E-6143DL
#define __REGISTER_PREFIX__
#define __USER_LABEL_PREFIX__
#define _FORTIFY_SOURCE 2
#define __GNUC_GNU_INLINE__ 1
#define __NO_INLINE__ 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1
#define __GCC_HAVE_DWARF2_CFI_ASM 1
#define __PRAGMA_REDEFINE_EXTNAME 1
#define __SSP__ 1
#define __SIZEOF_WCHAR_T__ 4
#define __SIZEOF_WINT_T__ 4
#define __SIZEOF_PTRDIFF_T__ 4
#define __i386 1
#define __i386__ 1
#define i386 1
#define __i686 1
#define __i686__ 1
#define __pentiumpro 1
#define __pentiumpro__ 1
#define __gnu_linux__ 1
#define __linux 1
#define __linux__ 1
#define linux 1
#define __unix 1
#define __unix__ 1
#define unix 1
#define __ELF__ 1
#define __DECIMAL_BID_FORMAT__ 1

18:38:55 Build Finished (took 339ms)

Thanks to any and all that read this plea for help! Please let me know if there is any other information I could get that would help you diagnose what is wrong.

All the best,
Peter
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