C / Qt - 来自MainWindow的错误对话 - 错误LNK2019 - LNK2001：未解析的外部符号

基本上，代码的目标是在单击按钮后打开包含QWebView（带有一些内容）的对话框

这些是我做的：

mainwindow.h:

class MainWindow : public QMainWindow, public Ui::MainWindowUi
{
    ...
    private slots:
    void on_ViewDatabase_clicked();
    ...
}

mainwindow.cpp:

#include "mainwindow.h"
#include "onlinedb.h"



void MainWindow::on_ViewDatabase_clicked()
{

    OnlineDB dlg(this);
    dlg.exec();
}

onlinedb.h:

#ifndef OnlineDB_H
#define OnlineDB_H


#include "ui_onlinedb.h"
#include <QDialog>


class MainWindow;

class OnlineDB : public QDialog, public Ui::OnlineDB
{
    Q_OBJECT

public:
    OnlineDB(LkMainWindow *parent);
    ~OnlineDB();

private:
    MainWindow  *MainWindow;

};


#endif

onlinedb.cpp:

#include "onlinedb.h"
#include "mainwindow.h"

///////////////////////////////////////////////////////////////////////////////
//
// OnlineDB class constructor
//
// Create a OnlineDB
//
OnlineDB::OnlineDB(MainWindow *parent) : QDialog(parent), MainWindow(parent)
{
    setupUi(this);
    QUrl url("http://google.com"); //whatever
    webView->load(url);
}



///////////////////////////////////////////////////////////////////////////////
//
// OnlineDB class destructor
//
// Clean up the OnlineDB
//
OnlineDB::~OnlineDB()
{

}

我收到了几个链接错误

Plz有人可以提供帮助吗？

3>链接... 3> onlinedb.obj：错误LNK2019：未解析的外部符号“_declspec（dllimport）public：void thiscall QWebView :: load（class QUrl const＆）”（ imp？load @ QWebView @@ QAEXABVQUrl @@@ Z）函数"public: __thiscall OnlineDB::OnlineDB(class LkMainWindow *)"（?? 0OnlineDB @@ QAE @ PAVLkMainWindow @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"public: virtual struct QMetaObject const * __thiscall OnlineDB::metaObject(void)const "（？metaObject @ OnlineDB @@ UBEPBUQMetaObject @@ XZ）3> onlinedb.obj ：错误LNK2001：未解析的外部符号"public: virtual void * __thiscall OnlineDB::qt_metacast(char const *)"（？qt_metacast @ OnlineDB @@ UAEPAXPBD @ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"public: virtual int __thiscall OnlineDB::qt_metacall(enum QMetaObject::Call,int,void * *)"（？qt_metacall @ OnlineDB @@ UAEHW4Call @ QMetaObject @@ HPAPAX @ Z）3> onlinedb.obj：错误LNK2019：未解析的外部符号“_declspec（dllimport）public：void thiscall QWebView :: setUrl（class QUrl const＆）”（ imp？setUrl @ QWebView @@ QAEXABVQUrl @@@ Z）在函数"public: void __thiscall Ui_OnlineDB::setupUi(class QDialog *)"中引用（？ setupUi @Ui_OnlineDB @@ QAEXPAVQDialog @@@ Z）3> onlinedb.obj：错误LNK2019：未解析的外部符号"__declspec(dllimport) public: __thiscall QWebView::QWebView(class QWidget *)"（_imp ?? 0QWebView @@ QAE @ PAVQWidget @@@ Z）在function "public: void __thiscall Ui_OnlineDB::setupUi(class QDialog *)"（？setupUi @Ui_OnlineDB @@ QAEXPAVQDialog @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"public: virtual struct QMetaObject const * __thiscall QWebView::metaObject(void)const "（？metaObject @ QWebView @@ UBEPBUQMetaObject @@ XZ）3> onlinedb.obj：错误LNK2001：未解决外部符号"public: virtual void * __thiscall QWebView::qt_metacast(char const *)"（？qt_metacast @ QWebView @@ UAEPAXPBD @ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"public: virtual int __thiscall QWebView::qt_metacall(enum QMetaObject::Call,int,void * *)"（？qt_metacall @ QWebView @@ UAEHW4Call @ QMetaObject @@ HPAPAX @ Z）3> onlinedb.obj：error LNK2001：未解析的外部符号"public: virtual bool __thiscall QWebView::event(class QEvent *)"（？event @ QWebView @@ UAE_NPAVQEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"public: virtual class QSize __thiscall QWebView::sizeHint(void)const "（？sizeHint @ QWebView @@ UBE？AVQSize @@ XZ）3> onlinedb . obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::mousePressEvent(class QMouseEvent *)"（？mousePressEvent @ QWebView @@ MAEXPAVQMouseEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::mouseReleaseEvent(class QMouseEvent *)"（？mouseReleaseEvent @ QWebView @@ MAEXPAVQMouseEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::mouseDoubleClickEvent(class QMouseEvent *)"（？mouseDoubleClickEvent @ QWebView @@ MAEXPAVQMouseEvent @@ @Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::mouseMoveEvent(class QMouseEvent *)"（？mouseMoveEvent @ QWebView @@ MAEXPAVQMouseEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::wheelEvent(class QWheelEvent *)"（？wheelEvent @ QWebView @@ MAEXPAVQWheelEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::keyPressEvent(class QKeyEvent *)"（？keyPressEvent @ QWebView @@ MAEXPAVQKeyEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::keyReleaseEvent(class QKeyEvent *)"（？keyReleaseEvent @ QWebView @ @MAEXPAVQKeyEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::focusInEvent(class QFocusEvent *)"（？focusInEvent @ QWebView @@ MAEXPAVQFocusEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::focusOutEvent(class QFocusEvent *)"（？focusOutEvent @ QWebView @@ MAEXPAVQFocusEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::paintEvent(class QPaintEvent *)"（？paintEvent @ QWebView @@ MAEXPAVQPaintEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::resizeEvent(class QResizeEvent *)"（？ resizeEvent @ QWebView @@ MAEXPAVQResizeEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的ex ternal symbol "protected: virtual void __thiscall QWebView::contextMenuEvent(class QContextMenuEvent *)"（？contextMenuEvent @ QWebView @@ MAEXPAVQContextMenuEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::dragEnterEvent(class QDragEnterEvent *)"（？dragEnterEvent @ QWebView @@ MAEXPAVQDragEnterEvent @@@ Z）3> onlinedb.obj：错误LNK2001 ：未解析的外部符号"protected: virtual void __thiscall QWebView::dragMoveEvent(class QDragMoveEvent *)"（？dragMoveEvent @ QWebView @@ MAEXPAVQDragMoveEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::dragLeaveEvent(class QDragLeaveEvent *)"（？dragLeaveEvent @ QWebView @@ MAEXPAVQDragLeaveEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::dropEvent(class QDropEvent *)"（？dropEvent @ QWebView @@ MAEXPAVQDropEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::changeEvent(class QEvent *)"（？changeEvent @ QWebView @@ MAEXPAVQEvent @@@ Z）3> onlinedb . obj：错误LNK2001：未解析的外部符号"protected: virtual void __thiscall QWebView::inputMethodEvent(class QInputMethodEvent *)"（？inputMethodEvent @ QWebView @@ MAEXPAVQInputMethodEvent @@@ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号"public: virtual class QVariant __thiscall QWebView::inputMethodQuery(enum Qt::InputMethodQuery)const "（？inputMethodQuery @ QWebView @@ UBE？AVQVariant @@ W4InputMethodQuery @ Qt @@@ Z）3> onlinedb.obj：错误LNK2001：未解决的e xternal symbol "protected: virtual bool __thiscall QWebView::focusNextPrevChild(bool)"（？focusNextPrevChild @ QWebView @@ MAE_N_N @ Z）3> onlinedb.obj：错误LNK2001：未解析的外部符号“protected：virtual class QWebView * _thiscall QWebView :: createWindow（enum QWebPage :: WebWindowType）" (?createWindow@QWebView@@MAEPAV1@W4WebWindowType@QWebPage@@@Z) 3>onlinedb.obj : error LNK2019: unresolved external symbol " _declspec（dllimport） public：virtual thiscall QWebView :: ~QWebView（void）“（ imp _ ?? 1QWebView @@ UAE @ XZ）在函数"public: virtual void * __thiscall QWebView::`scalar deleting destructor'(unsigned int)"中引用（?? _ GQWebView @@ UAEPAXI @ Z）