Hi, This usually happens when the compiler version used to build ROOT is not the same as the compiler available in the path (i.e. bash> g++ -v). Cheers, Philippe. -----Original Message----- From: owner-roottalk@pcroot.cern.ch [mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Jose Caballero Sent: Tuesday, July 29, 2003 10:54 AM To: roottalk@pcroot.cern.ch Subject: [ROOT] Load Error: Failed to load Dynamic link library Hi: I use Root 3.05/05 in Linux RedHat with compiler g++3.2 I'm trying to compile a Selector.C file (the file .tar includes Selector.C and Selector.h). When I issue root[] .L Selector.C+ I obtain the following answer Info in <TUnixSystem::ACLiC>: creating shared library /afs/ciemat.es/user/c/caballero/private/ROOT/pruebas/./Selector_C.so dlopen error: /afs/ciemat.es/user/c/caballero/private/ROOT/pruebas/./Selector_C.so: undefined symbol: _ZNSt8ios_baseC2ERKS_ Load Error: Failed to load Dynamic link library /afs/ciemat.es/user/c/caballero/private/ROOT/pruebas/./Selector_C.so /usr/lib/crt1.o: In function `_start': /usr/lib/crt1.o(.text+0x18): undefined reference to `main' /afs/ciemat.es/user/c/caballero/private/ROOT/pruebas/./filergZs1w.o: In function `std::basic_ios<char, std::char_traits<char> >::basic_ios[not-in-charge](std::basic_ios<char, std::char_traits<char> > const&)': /afs/ciemat.es/user/c/caballero/private/ROOT/pruebas/./filergZs1w.o(.gnu.lin konce.t._ZNSt9basic_iosIcSt11char_traitsIcEEC2ERKS2_+0x26): undefined reference to `std::ios_base::ios_base[not-in-charge](std::ios_base const&)' collect2: ld returned 1 exit status *** Interpreter error recovered *** What can I do? Thank you very much in advance for your help. ################################################################# ################################################################# ################################################################# ##### ##### ##### ################################################################# ################################################################# #################################################################
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