靜態QT無法解析的外部符號

Question

我一直在嘗試使用靜態qt構建一段時間，但我無法擺脫這些錯誤。

 <QtGuiApplication4> (29 items) 
Error LNK2019: unresolved external symbol _FT_New_Face referenced in function "public: static class QStringList __cdecl QBasicFontDatabase::addTTFile(class QByteArray const &,class QByteArray const &)" (?addTTFile@QBasicFontDatabase@@SA?AVQStringList@@ABVQByteArray@@0@Z) 
Error LNK2019: unresolved external symbol _FT_Get_PS_Font_Info referenced in function "public: bool __thiscall QFontEngineFT::init(struct QFontEngine::FaceId,bool,enum QFontEngine::GlyphFormat,class QFreetypeFace *)" (?init@QFontEngineFT@@QAE_NUFaceId@QFontEngine@@_NW4GlyphFormat@3@PAVQFreetypeFace@@@Z) 
Error LNK2019: unresolved external symbol _FT_Load_Sfnt_Table referenced in function "bool __cdecl ft_getSfntTable(void *,unsigned int,unsigned char *,unsigned int *)" (?ft_getSfntTable@@YA_NPAXIPAEPAI@Z) 
Error LNK2019: unresolved external symbol _FT_GlyphSlot_Oblique referenced in function "public: virtual void __thiscall QFontEngineFT::addGlyphsToPath(unsigned int *,struct QFixedPoint *,int,class QPainterPath *,class QFlags<enum QTextItem::RenderFlag>)" (?addGlyphsToPath@QFontEngineFT@@UAEXPAIPAUQFixedPoint@@HPAVQPainterPath@@V?$QFlags@W4RenderFlag@QTextItem@@@@@Z) 
Error LNK2019: unresolved external symbol _FT_GlyphSlot_Embolden referenced in function "public: virtual void __thiscall QFontEngineFT::addGlyphsToPath(unsigned int *,struct QFixedPoint *,int,class QPainterPath *,class QFlags<enum QTextItem::RenderFlag>)" (?addGlyphsToPath@QFontEngineFT@@UAEXPAIPAUQFixedPoint@@HPAVQPainterPath@@V?$QFlags@W4RenderFlag@QTextItem@@@@@Z) 
Error LNK2019: unresolved external symbol _FT_Outline_Get_Bitmap referenced in function "public: struct QFontEngineFT::Glyph * __thiscall QFontEngineFT::loadGlyph(struct QFontEngineFT::QGlyphSet *,unsigned int,struct QFixed,enum QFontEngine::GlyphFormat,bool)const " (?loadGlyph@QFontEngineFT@@QBEPAUGlyph@1@PAUQGlyphSet@1@IUQFixed@@W4GlyphFormat@QFontEngine@@_N@Z) 
Error LNK2019: unresolved external symbol _FT_Outline_Transform referenced in function "public: struct QFontEngineFT::Glyph * __thiscall QFontEngineFT::loadGlyph(struct QFontEngineFT::QGlyphSet *,unsigned int,struct QFixed,enum QFontEngine::GlyphFormat,bool)const " (?loadGlyph@QFontEngineFT@@QBEPAUGlyph@1@PAUQGlyphSet@1@IUQFixed@@W4GlyphFormat@QFontEngine@@_N@Z) 
Error LNK2019: unresolved external symbol _FT_Outline_Translate referenced in function "public: struct QFontEngineFT::Glyph * __thiscall QFontEngineFT::loadGlyph(struct QFontEngineFT::QGlyphSet *,unsigned int,struct QFixed,enum QFontEngine::GlyphFormat,bool)const " (?loadGlyph@QFontEngineFT@@QBEPAUGlyph@1@PAUQGlyphSet@1@IUQFixed@@W4GlyphFormat@QFontEngine@@_N@Z) 
Error LNK2019: unresolved external symbol _FT_Vector_Transform referenced in function "public: struct QFontEngineFT::Glyph * __thiscall QFontEngineFT::loadGlyph(struct QFontEngineFT::QGlyphSet *,unsigned int,struct QFixed,enum QFontEngine::GlyphFormat,bool)const " (?loadGlyph@QFontEngineFT@@QBEPAUGlyph@1@PAUQGlyphSet@1@IUQFixed@@W4GlyphFormat@QFontEngine@@_N@Z) 
Error LNK2019: unresolved external symbol _FT_MulFix referenced in function "public: bool __thiscall QFontEngineFT::init(struct QFontEngine::FaceId,bool,enum QFontEngine::GlyphFormat,class QFreetypeFace *)" (?init@QFontEngineFT@@QAE_NUFaceId@QFontEngine@@_NW4GlyphFormat@3@PAVQFreetypeFace@@@Z) 
Error LNK2019: unresolved external symbol _FT_MulDiv referenced in function "void __cdecl scaleOutline(struct FT_FaceRec_ *,struct FT_GlyphSlotRec_ *,long,long)" (?scaleOutline@@YAXPAUFT_FaceRec_@@PAUFT_GlyphSlotRec_@@JJ@Z) 
Error LNK2019: unresolved external symbol _FT_Get_Char_Index referenced in function "public: virtual unsigned int __thiscall QFontEngineFT::glyphIndex(unsigned int)const " (?glyphIndex@QFontEngineFT@@UBEII@Z) 
Error LNK2019: unresolved external symbol _FT_Set_Charmap referenced in function "public: static class QFreetypeFace * __cdecl QFreetypeFace::getFace(struct QFontEngine::FaceId const &,class QByteArray const &)" (?getFace@QFreetypeFace@@SAPAV1@ABUFaceId@QFontEngine@@ABVQByteArray@@@Z) 
Error LNK2019: unresolved external symbol _FT_Matrix_Multiply referenced in function "public: struct QFontEngineFT::Glyph * __thiscall QFontEngineFT::loadGlyph(struct QFontEngineFT::QGlyphSet *,unsigned int,struct QFixed,enum QFontEngine::GlyphFormat,bool)const " (?loadGlyph@QFontEngineFT@@QBEPAUGlyph@1@PAUQGlyphSet@1@IUQFixed@@W4GlyphFormat@QFontEngine@@_N@Z) 
Error LNK2019: unresolved external symbol _FT_Get_Postscript_Name referenced in function "public: struct QFontEngine::Properties __thiscall QFreetypeFace::properties(void)const " (?properties@QFreetypeFace@@QBE?AUProperties@QFontEngine@@XZ) 
Error LNK2019: unresolved external symbol _FT_Load_Glyph referenced in function "public: virtual void __thiscall QFontEngineFT::addGlyphsToPath(unsigned int *,struct QFixedPoint *,int,class QPainterPath *,class QFlags<enum QTextItem::RenderFlag>)" (?addGlyphsToPath@QFontEngineFT@@UAEXPAIPAUQFixedPoint@@HPAVQPainterPath@@V?$QFlags@W4RenderFlag@QTextItem@@@@@Z) 
Error LNK2019: unresolved external symbol _FT_Set_Char_Size referenced in function "public: static class QFreetypeFace * __cdecl QFreetypeFace::getFace(struct QFontEngine::FaceId const &,class QByteArray const &)" (?getFace@QFreetypeFace@@SAPAV1@ABUFaceId@QFontEngine@@ABVQByteArray@@@Z) 
Error LNK2019: unresolved external symbol _FT_Select_Size referenced in function "public: void __thiscall QFreetypeFace::computeSize(struct QFontDef const &,int *,int *,bool *)" (?computeSize@QFreetypeFace@@QAEXABUQFontDef@@PAH1PA_N@Z) 
Error LNK2019: unresolved external symbol _FT_Done_FreeType referenced in function "public: __thiscall QtFreetypeData::~QtFreetypeData(void)" (??1QtFreetypeData@@QAE@XZ) 
Error LNK2019: unresolved external symbol _FT_Init_FreeType referenced in function "public: static class QFreetypeFace * __cdecl QFreetypeFace::getFace(struct QFontEngine::FaceId const &,class QByteArray const &)" (?getFace@QFreetypeFace@@SAPAV1@ABUFaceId@QFontEngine@@ABVQByteArray@@@Z) 
Error LNK2001: unresolved external symbol _FT_Get_Sfnt_Table 
Error LNK2019: unresolved external symbol _FT_Get_Sfnt_Table referenced in function "public: static class QStringList __cdecl QBasicFontDatabase::addTTFile(class QByteArray const &,class QByteArray const &)" (?addTTFile@QBasicFontDatabase@@SA?AVQStringList@@ABVQByteArray@@0@Z) 
Error LNK2001: unresolved external symbol _FT_Done_Face 
Error LNK2019: unresolved external symbol _FT_Done_Face referenced in function "public: static class QStringList __cdecl QBasicFontDatabase::addTTFile(class QByteArray const &,class QByteArray const &)" (?addTTFile@QBasicFontDatabase@@SA?AVQStringList@@ABVQByteArray@@0@Z) 
Error LNK2001: unresolved external symbol _FT_New_Memory_Face 
Error LNK2019: unresolved external symbol _FT_New_Memory_Face referenced in function "public: static class QStringList __cdecl QBasicFontDatabase::addTTFile(class QByteArray const &,class QByteArray const &)" (?addTTFile@QBasicFontDatabase@@SA?AVQStringList@@ABVQByteArray@@0@Z) 
Error LNK2001: unresolved external symbol _FT_New_Face 
Error LNK2019: unresolved external symbol _FT_Set_Transform referenced in function "public: virtual void __thiscall QFontEngineFT::getUnscaledGlyph(unsigned int,class QPainterPath *,struct glyph_metrics_t *)" (?getUnscaledGlyph@QFontEngineFT@@UAEXIPAVQPainterPath@@PAUglyph_metrics_t@@@Z) 
Error LNK1120: 24 unresolved externals 

我使用這些庫：

ws2_32.lib 
imm32.lib 
winmm.lib 
qtharfbuzzng.lib 
qtpcre.lib 
Qt5PlatformSupport.lib 
qwindows.lib 
opengl32.lib 

任何你能解釋我什麼，我做錯了什麼？謝謝。

Answer 1

您至少需要QtCore和QtGui。 QString在QtCore中，而QGuiApplication在QtGui中。如果您的Qt使用僅限於用戶界面活動，那可能就足夠了。否則，對於每個無法鏈接的類，請查看Qt助手。頁面頂部的「qmake」註釋指出哪個庫包含該類。

例如，對於Qstring，它有「qmake：QT + = core」。對於Windows上的Visual Studio，「核心」庫的實際文件名是Qt5Core.dll（發行版）Qt5Cored.dll（調試）。

Answer 2

我有完全相同的問題。您錯過了freetype庫qtfreetype.lib。 將以下行添加到.pro文件中

LIBS += -lqtfreetype