QT-creator中架构x86_64的未定义符号 [英] Undefined symbols for architecture x86_64 in QT-creator
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问题描述
我刚刚开始使用C ++，并且学习如何使用QT creator作为IDE，所以我怀疑这可能是很容易，但我可能会错过一些东西。我安装了apollo MQ并安装了apache CMS（ C ++消息服务），以便我可以与服务器在C ++中。问题是，我没有线索我在做什么:-)（还），不知道为什么我得到上述错误时使用示例。
I'm just starting out with C++ and am learning how to use QT creator as the IDE so I suspect this might be really easy but I might be missing something. I installed apollo MQ and installed the apache CMS(C++ messaging service) so I can interact with the server in C++. The problem is, I have no clue what I'm doing :-) (yet), and am not sure why I'm getting the above error when using the examples.
我非常确定这些例子很好，因为它们包含在源代码的示例文件夹中，所以它导致我怀疑项目的配置不正确只有我真的有影响）。
I am pretty sure the examples are good because they are included in the source's example folder so it leads me to suspect that the configuration of the project is not correct(as its the only ting I really have an influence on).
以下是.pro文件：
TEMPLATE = app
CONFIG += console
CONFIG -= qt
SOURCES += main.cpp
INCLUDEPATH += /usr/local/include/activemq-cpp-3.4.2/
INCLUDEPATH += /opt/local/lib/
文件夹内容（我想要的文件都在子目录中）：
Here is the folder contents where I'm pointing to(the files I want are all within the subdirectories there):
drwxr-xr-x 13 root admin 442 May 11 19:09 activemq
drwxr-xr-x 48 root admin 1632 May 11 19:09 cms
drwxr-xr-x 9 root admin 306 May 11 19:09 decaf
这是我得到的错误：
20:54:22: Running build steps for project stackexchangeexample...
20:54:22: Configuration unchanged, skipping qmake step.
20:54:22: Starting: "/usr/bin/make" -w
make: Entering directory `/Users/lostsoul/Dropbox/qt_cuda/stackexchangeexample-build-desktop-Desktop_Qt_4_8_1_for_GCC__Qt_SDK__Debug'
/Users/lostsoul/QtSDK/Desktop/Qt/4.8.1/gcc/bin/qmake -spec ../../../QtSDK/Desktop/Qt/4.8.1/gcc/mkspecs/macx-g++ CONFIG+=declarative_debug -o Makefile ../stackexchangeexample/stackexchangeexample.pro
make: Leaving directory `/Users/lostsoul/Dropbox/qt_cuda/stackexchangeexample-build-desktop-Desktop_Qt_4_8_1_for_GCC__Qt_SDK__Debug'
make: Entering directory `/Users/lostsoul/Dropbox/qt_cuda/stackexchangeexample-build-desktop-Desktop_Qt_4_8_1_for_GCC__Qt_SDK__Debug'
g++ -headerpad_max_install_names -arch x86_64 -Xarch_x86_64 -mmacosx-version-min=10.5 -o stackexchangeexample.app/Contents/MacOS/stackexchangeexample main.o
Undefined symbols for architecture x86_64:
"activemq::library::ActiveMQCPP::initializeLibrary()", referenced from:
_main in main.o
"activemq::library::ActiveMQCPP::shutdownLibrary()", referenced from:
_main in main.o
"activemq::core::ActiveMQConnectionFactory::ActiveMQConnectionFactory(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)", referenced from:
SimpleProducer::run() in main.o
"cms::CMSException::CMSException(cms::CMSException const&)", referenced from:
SimpleProducer::run() in main.o
"typeinfo for cms::CMSException", referenced from:
GCC_except_table15 in main.o
GCC_except_table16 in main.o
SimpleProducer::run() in main.o
"cms::CMSException::~CMSException()", referenced from:
SimpleProducer::run() in main.o
"decaf::lang::Thread::getId()", referenced from:
SimpleProducer::run() in main.o
"decaf::lang::Long::toString(long long)", referenced from:
SimpleProducer::run() in main.o
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
make: *** [stackexchangeexample.app/Contents/MacOS/stackexchangeexample] Error 1
make: Leaving directory `/Users/lostsoul/Dropbox/qt_cuda/stackexchangeexample-build-desktop-Desktop_Qt_4_8_1_for_GCC__Qt_SDK__Debug'
20:54:22: The process "/usr/bin/make" exited with code 2.
Error while building project stackexchangeexample (target: Desktop)
When executing build step 'Make'
如果它有帮助，这里是我运行的代码（它可能不是有用的任何人帮助，因为你需要安装一堆东西让它工作，但只是为了它的帮助）：
and if it helps, here's the code I run(it may not be useful to anyone for helping because you need to install a bunch of stuff to get it work, but just in case it helps):
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <decaf/lang/Thread.h>
#include <decaf/lang/Runnable.h>
#include <decaf/util/concurrent/CountDownLatch.h>
#include <decaf/lang/Long.h>
#include <decaf/util/Date.h>
#include <activemq/core/ActiveMQConnectionFactory.h>
#include <activemq/util/Config.h>
#include <activemq/library/ActiveMQCPP.h>
#include <cms/Connection.h>
#include <cms/Session.h>
#include <cms/TextMessage.h>
#include <cms/BytesMessage.h>
#include <cms/MapMessage.h>
#include <cms/ExceptionListener.h>
#include <cms/MessageListener.h>
#include <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <memory>
using namespace activemq;
using namespace activemq::core;
using namespace decaf;
using namespace decaf::lang;
using namespace decaf::util;
using namespace decaf::util::concurrent;
using namespace cms;
using namespace std;
////////////////////////////////////////////////////////////////////////////////
class SimpleProducer : public Runnable {
private:
Connection* connection;
Session* session;
Destination* destination;
MessageProducer* producer;
bool useTopic;
bool clientAck;
unsigned int numMessages;
std::string brokerURI;
std::string destURI;
private:
SimpleProducer( const SimpleProducer& );
SimpleProducer& operator= ( const SimpleProducer& );
public:
SimpleProducer( const std::string& brokerURI, unsigned int numMessages,
const std::string& destURI, bool useTopic = false, bool clientAck = false ) :
connection(NULL),
session(NULL),
destination(NULL),
producer(NULL),
useTopic(useTopic),
clientAck(clientAck),
numMessages(numMessages),
brokerURI(brokerURI),
destURI(destURI) {
}
virtual ~SimpleProducer(){
cleanup();
}
void close() {
this->cleanup();
}
virtual void run() {
try {
// Create a ConnectionFactory
auto_ptr<ActiveMQConnectionFactory> connectionFactory(
new ActiveMQConnectionFactory( brokerURI ) );
// Create a Connection
try{
connection = connectionFactory->createConnection();
connection->start();
} catch( CMSException& e ) {
e.printStackTrace();
throw e;
}
// Create a Session
if( clientAck ) {
session = connection->createSession( Session::CLIENT_ACKNOWLEDGE );
} else {
session = connection->createSession( Session::AUTO_ACKNOWLEDGE );
}
// Create the destination (Topic or Queue)
if( useTopic ) {
destination = session->createTopic( destURI );
} else {
destination = session->createQueue( destURI );
}
// Create a MessageProducer from the Session to the Topic or Queue
producer = session->createProducer( destination );
producer->setDeliveryMode( DeliveryMode::NON_PERSISTENT );
// Create the Thread Id String
string threadIdStr = Long::toString( Thread::getId() );
// Create a messages
string text = (string)"Hello world! from thread " + threadIdStr;
for( unsigned int ix=0; ix<numMessages; ++ix ){
TextMessage* message = session->createTextMessage( text );
message->setIntProperty( "Integer", ix );
// Tell the producer to send the message
printf( "Sent message #%d from thread %s\n", ix+1, threadIdStr.c_str() );
producer->send( message );
delete message;
}
}catch ( CMSException& e ) {
e.printStackTrace();
}
}
private:
void cleanup(){
// Destroy resources.
try{
if( destination != NULL ) delete destination;
}catch ( CMSException& e ) { e.printStackTrace(); }
destination = NULL;
try{
if( producer != NULL ) delete producer;
}catch ( CMSException& e ) { e.printStackTrace(); }
producer = NULL;
// Close open resources.
try{
if( session != NULL ) session->close();
if( connection != NULL ) connection->close();
}catch ( CMSException& e ) { e.printStackTrace(); }
try{
if( session != NULL ) delete session;
}catch ( CMSException& e ) { e.printStackTrace(); }
session = NULL;
try{
if( connection != NULL ) delete connection;
}catch ( CMSException& e ) { e.printStackTrace(); }
connection = NULL;
}
};
////////////////////////////////////////////////////////////////////////////////
int main(int argc AMQCPP_UNUSED, char* argv[] AMQCPP_UNUSED) {
activemq::library::ActiveMQCPP::initializeLibrary();
std::cout << "=====================================================\n";
std::cout << "Starting the example:" << std::endl;
std::cout << "-----------------------------------------------------\n";
// Set the URI to point to the IPAddress of your broker.
// add any optional params to the url to enable things like
// tightMarshalling or tcp logging etc. See the CMS web site for
// a full list of configuration options.
//
// http://activemq.apache.org/cms/
//
// Wire Format Options:
// =====================
// Use either stomp or openwire, the default ports are different for each
//
// Examples:
// tcp://127.0.0.1:61616 default to openwire
// tcp://127.0.0.1:61616?wireFormat=openwire same as above
// tcp://127.0.0.1:61613?wireFormat=stomp use stomp instead
//
std::string brokerURI =
"failover://(tcp://127.0.0.1:61616"
// "?wireFormat=openwire"
// "&connection.useAsyncSend=true"
// "&transport.commandTracingEnabled=true"
// "&transport.tcpTracingEnabled=true"
// "&wireFormat.tightEncodingEnabled=true"
")";
//============================================================
// Total number of messages for this producer to send.
//============================================================
unsigned int numMessages = 2000;
//============================================================
// This is the Destination Name and URI options. Use this to
// customize where the Producer produces, to have the producer
// use a topic or queue set the 'useTopics' flag.
//============================================================
std::string destURI = "TEST.FOO";
//============================================================
// set to true to use topics instead of queues
// Note in the code above that this causes createTopic or
// createQueue to be used in the producer.
//============================================================
bool useTopics = false;
// Create the producer and run it.
SimpleProducer producer( brokerURI, numMessages, destURI, useTopics );
// Publish the given number of Messages
producer.run();
// Before exiting we ensure that all CMS resources are closed.
producer.close();
std::cout << "-----------------------------------------------------\n";
std::cout << "Finished with the example." << std::endl;
std::cout << "=====================================================\n";
activemq::library::ActiveMQCPP::shutdownLibrary();
}
我刚创建了一个空的c ++项目，修改了.pro文件，路径到库，然后复制/粘贴代码到main.cpp。任何想法是什么原因？和我怎么能防止它？
I just created a empty c++ project, modified the .pro file to include a path to the libraries and then copy/pasted the code into main.cpp. Any idea what causes this? and how I can prevent it?
推荐答案
您似乎忘记了库路径您可以使用新值定义 INCLUDEPATH ，但不要添加相应的 LIBPATH 或 LIBRARYPATH 或任何库的等效变量命名。你还需要相应的 -l库参数为特定库？
It looks like you've forgotten the library paths; you define INCLUDEPATH with new values but don't add a corresponding LIBPATH or LIBRARYPATH or whatever the equivalent variable for libraries is named. Won't you also need the corresponding -l library parameters for the specific libraries?
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