When I use any string variable my program compiling ok, but when I run my application I get error: The procedure entry point _znkst7__cxx1112basic_stringic could not be located in the library. What is wrong. My MinGW is last. g++ -v Using built-in specs. COLLECT_GCC=g++ COLLECT_LTO_WRAPPER=c:/mingw/b Target: mingw32 Configured with: ../src/gcc-9.2.0/configure --build=x86_64-pc-linux-gnu --host=mingw32 --target=mingw32 --disable-win32-registry --with-arch=i586 --with-tune=generic --enable-static --enable-shared --enable-threads --enable-languages=c,c++,objc, --with-dwarf2 --disable-sjlj-exceptions --enable-version-specific-runt --enable-libgomp --disable-libvtv --with-libiconv-prefix=/mingw --with-libintl-prefix=/mingw --enable-libstdcxx-debug --disable-build-format-warning --prefix=/mingw --with-gmp=/mingw --with-mpfr=/mingw --with-mpc=/mingw --with-isl=/mingw --enable-nls --with-pkgversion='MinGW.org GCC Build-2' Thread model: win32 gcc version 9.2.0 (MinGW.org GCC Build-2) Thanks for reply KK -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.osdn.me/mailman/archives/mingw-users/attachments/20201113/2f784266/attachment.html>