鏈接器不構建用戶定義的類型

Question

我有一個長期項目，包括建立一個可以產生新穎的音樂和聲的專家系統。我從VB.net開始接受了這個項目，但希望使用獨立於平臺的語言，所以我轉而使用C++來促進未來的遷移。本質上，音調是當分組爲向量時形成的和絃進行的一部分，當分組爲向量形成塊的一部分時，等等。因此整個結構對它有遞歸的感覺。雖然下面的代碼會在Netbeans 7.2中進行編譯和鏈接，但是我遇到了很難解決的可怕內存問題，所以我現在正在使用Eclipse。雖然動態庫將在Eclipse中編譯，但似乎將總體級別的問題鏈接起來，以避免創建對象。我花了幾天的時間嘗試各種補救措施。我在這裏包含頂級主代碼和我收到的錯誤消息的部分列表。任何指針可能會發生什麼，將不勝感激。 THX在期待..

/* 
* File: main.cpp 
* Author: Creative 
* 
* Created on August 6, 2012, 10:49 AM 
*/ 

#include "../tonestatdynlib/name_pitchstructure.h" 
#include "../sequencerdynlib/chord.h" 
#include "../sequencerdynlib/Move.h" 
#include "../sequencerdynlib/block.h" 
#include "../sequencerdynlib/prog.h" 
#include "../legalitydynlib/testLegal.h" 
#include "../dataWriterdynlib/dWriter.h" 
#include <iostream> 
#include <sqlite3.h>//database facility 

int main(int argc, char** argv) { 

    int make; 
    char start; 

    cout << "Do you want to start a new movement? Y/N" << endl; 

cin >> start; 

    if (start == 'Y') { 
     bool end = false; 
     Move theMove; 
     block theBlock; 
     prog theProg; 
     int i = 1, mv = 1, bk = 1, pr = 1; 

     theMove.items.push_back(theBlock); 
     theBlock.items.push_back(theProg); 

     do { 
      chord nextChord(i); 
      nextChord.getPitches(); 
      theProg.items.push_back(nextChord); 
      dWriter dW(nextChord, pr, bk, mv, "SONO"); 
      cout << "Chord Number " << i << " is completed. Do you want to:" << endl; 
      cout << "Enter another chord?: 1" << endl; 
      cout << "Start a new progression?: 2" << endl; 
      cout << "Start a new block?: 3" << endl; 
      cout << "Start a new movement?: 4" << endl; 
      cout << "Exit SONO: 5" << endl; 
      cin >> make; 
      switch (make) { 
       case 5: end = true; 
        break; 
       case 1: i++; 
        break; 
       case 2: i = 1; 
        pr++; 
        break; 
       case 3: i = 1; 
        pr = 1; 
        bk++; 
        break; 
       case 4: i = 1; 
        pr = 1; 
        bk = 1; 
        mv++; 
        break; 
      } 
     } while (end == false); 
    } 
    return 0; 
} 

錯誤消息：

g++ -L"/Users/Creative/Documents/workspace/tonestatdynlib/Debug" -L"/Users/Creative/Documents/workspace/chordOpsdynlib/Debug" -L"/Users/Creative/Documents/workspace/dataWriterdynlib/Debug" -L"/Users/Creative/Documents/workspace/legalitydynlib/Debug" -L"/Users/Creative/Documents/workspace/sequencerdynlib/Debug" -L"/Users/Creative/Documents/workspace/tonestatdynlib" -L"/Users/Creative/Documents/workspace/sequencerdynlib" -L"/Users/Creative/Documents/workspace/legalitydynlib" -L"/Users/Creative/Documents/workspace/dataWriterdynlib" -L"/Users/Creative/Documents/workspace/chordOpsdynlib" -o "SONO" ./main.o 



Undefined symbols for architecture x86_64: 
    "block::block(block const&)", referenced from: 
     __gnu_cxx::new_allocator<block>::construct(block*, block const&)in main.o 
     void std::_Construct<block, block>(block*, block const&)in main.o 
     std::vector<block, std::allocator<block> >::_M_insert_aux(__gnu_cxx::__normal_iterator<block*, std::vector<block, std::allocator<block> > >, block const&)in main.o 
    "prog::prog(prog const&)", referenced from: 
     void std::_Construct<prog, prog>(prog*, prog const&)in main.o 
     __gnu_cxx::new_allocator<prog>::construct(prog*, prog const&)in main.o 
     std::vector<prog, std::allocator<prog> >::_M_insert_aux(__gnu_cxx::__normal_iterator<prog*, std::vector<prog, std::allocator<prog> > >, prog const&)in main.o 
    "chord::chord(chord const&)", referenced from: 
     void std::_Construct<chord, chord>(chord*, chord const&)in main.o 
     __gnu_cxx::new_allocator<chord>::construct(chord*, chord const&)in main.o 
     std::vector<chord, std::allocator<chord> >::_M_insert_aux(__gnu_cxx::__normal_iterator<chord*, std::vector<chord, std::allocator<chord> > >, chord const&)in main.o 
    "pitchStats::pitchStats(pitchStats const&)", referenced from: 
     void std::_Construct<pitchStats, pitchStats>(pitchStats*, pitchStats const&)in main.o 
    "block::~block()", referenced from: 
     _main in main.o 
     std::vector<block, std::allocator<block> >::_M_insert_aux(__gnu_cxx::__normal_iterator<block*, std::vector<block, std::allocator<block> > >, block const&)in main.o 
    "prog::~prog()", referenced from: 
     _main in main.o 
     std::vector<prog, std::allocator<prog> >::_M_insert_aux(__gnu_cxx::__normal_iterator<prog*, std::vector<prog, std::allocator<prog> > >, prog const&)in main.o 
    "chord::~chord()", referenced from: 
     _main in main.o 
     std::vector<chord, std::allocator<chord> >::_M_insert_aux(__gnu_cxx::__normal_iterator<chord*, std::vector<chord, std::allocator<chord> > >, chord const&)in main.o 
    "Move::Move()", referenced from: 
     _main in main.o 
    "block::block()", referenced from: 
     _main in main.o 
    "prog::prog()", referenced from: 
     _main in main.o 
    "chord::chord(int)", referenced from: 
     _main in main.o 
    "chord::getPitches()", referenced from: 
     _main in main.o 
    "dWriter::dWriter(chord const&, int, int, int, char const*)", referenced from: 
     _main in main.o 
    "dWriter::~dWriter()", referenced from: 
     _main in main.o 
    "Move::~Move()", referenced from: 
     _main in main.o 
ld: symbol(s) not found for architecture x86_64 
collect2: ld returned 1 exit status 
make: *** [SONO] Error 1 

Answer 1

你只提供其中的路徑搜索庫鏈接。您還需要提供庫，使用-l。例如，對於libFoo.so使用-lFoo。