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How to use Cocoa with Qt
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Hi,
How do you do it ?
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Did you do that in a .cpp file ?
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Then link the Foundation framework as well.
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Already tried that, the errors come from the headers and sources of Foundation.
Log
492:1: error: expected unqualified-id @class NSString, Protocol; ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObjCRuntime.h:503:50: error: unknown type name 'Protocol' FOUNDATION_EXPORT NSString *NSStringFromProtocol(Protocol *proto) API_AVAILABLE(macos(10.5), ios(2.0), watchos(2.0), tvos(9.0)); ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObjCRuntime.h:504:19: error: unknown type name 'Protocol' FOUNDATION_EXPORT Protocol * _Nullable NSProtocolFromString(NSString *namestr) API_AVAILABLE(macos(10.5), ios(2.0), watchos(2.0), tvos(9.0)); ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObjCRuntime.h:508:53: error: format argument not an NSString FOUNDATION_EXPORT void NSLog(NSString *format, ...) NS_FORMAT_FUNCTION(1,2) NS_NO_TAIL_CALL; ~~~~~~~~~~~~~~~~ ^ ~ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObjCRuntime.h:94:49: note: expanded from macro 'NS_FORMAT_FUNCTION' #define NS_FORMAT_FUNCTION(F,A) __attribute__((format(__NSString__, F, A))) ^ ~ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObjCRuntime.h:509:63: error: format argument not an NSString FOUNDATION_EXPORT void NSLogv(NSString *format, va_list args) NS_FORMAT_FUNCTION(1,0) NS_NO_TAIL_CALL; ~~~~~~~~~~~~~~~~ ^ ~ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObjCRuntime.h:94:49: note: expanded from macro 'NS_FORMAT_FUNCTION' #define NS_FORMAT_FUNCTION(F,A) __attribute__((format(__NSString__, F, A))) ^ ~ In file included from ../generator/main.cpp:1: In file included from ../generator/generatormain.h:5: In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Cocoa.framework/Headers/Cocoa.h:12: In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:10: In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSArray.h:5: In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:8: /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSZone.h:9:1: error: expected unqualified-id @class NSString; ^ In file included from ../generator/main.cpp:1: In file included from ../generator/generatormain.h:5: In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Cocoa.framework/Headers/Cocoa.h:12: In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:10: In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSArray.h:5: /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:10:1: error: expected unqualified-id @class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator; ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:11:1: error: expected unqualified-id @class Protocol; ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:17:1: error: expected unqualified-id @protocol NSCopying ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:21:1: error: expected unqualified-id @end ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:27:1: error: expected unqualified-id @end ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:32:1: error: expected external declaration - (nullable instancetype)initWithCoder:(NSCoder *)coder; // NS_DESIGNATED_INITIALIZER ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:32:13: error: expected ')' - (nullable instancetype)initWithCoder:(NSCoder *)coder; // NS_DESIGNATED_INITIALIZER ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObjCRuntime.h:231:22: note: expanded from macro 'instancetype' #define instancetype id ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:32:3: note: to match this '(' - (nullable instancetype)initWithCoder:(NSCoder *)coder; // NS_DESIGNATED_INITIALIZER ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:32:4: error: C++ requires a type specifier for all declarations - (nullable instancetype)initWithCoder:(NSCoder *)coder; // NS_DESIGNATED_INITIALIZER ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:32:26: error: expected ';' after top level declarator - (nullable instancetype)initWithCoder:(NSCoder *)coder; // NS_DESIGNATED_INITIALIZER ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:34:1: error: expected unqualified-id @end ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:44:1: error: expected unqualified-id @end ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:51:1: error: expected external declaration + (void)setVersion:(NSInteger)aVersion; ^ /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:51:4: error: expected unqualified-id + (void)setVersion:(NSInteger)aVersion; ^ fatal error: too many errors emitted, stopping now [-ferror-limit=] 20 errors generated. make: *** [main.o] Error 1 22:54:28: The process "/usr/bin/make" exited with code 2. Error while building/deploying project generator (kit: Desktop Qt 6.0.0 clang 64bit) When executing step "Make" -
Can you share your .mm and .pro file ?
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Project File
QT += core gui greaterThan(QT_MAJOR_VERSION, 4): QT += widgets CONFIG += c++11 # You can make your code fail to compile if it uses deprecated APIs. # In order to do so, uncomment the following line. #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 SOURCES += \ main.cpp OBJECTIVE_SOURCES += \ mainwindow.mm OBJECTIVE_HEADERS += \ mainwindow.h FORMS += \ mainwindow.ui # Default rules for deployment. qnx: target.path = /tmp/$${TARGET}/bin else: unix:!android: target.path = /opt/$${TARGET}/bin !isEmpty(target.path): INSTALLS += target mac: LIBS += -framework Cocoa mac: LIBS += -framework Foundation.mm File
#include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) , ui(new Ui::MainWindow) { ui->setupUi(this); } MainWindow::~MainWindow() { delete ui; } -
There's no imports in your .mm file.
