Failed to build Qt 6.3.0 from source on Ubuntu 22.04.

[jiapei100]

Hi, all:

My ENV:

->  ~ uname -r
5.15.0-27-generic
->  ~ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 22.04 LTS
Release:	22.04
Codename:	jammy
->  ~ gcc --version
gcc (Ubuntu 11.2.0-19ubuntu1) 11.2.0
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
->  ~ python --version
Python 3.10.4

->  ~ uname -r
5.15.0-27-generic
->  ~ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 22.04 LTS
Release:	22.04
Codename:	jammy
->  ~ gcc --version
gcc (Ubuntu 11.2.0-19ubuntu1) 11.2.0
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

->  ~ python --version
Python 3.10.4

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I'm trying to build Qt 6.3.0 from source, but ./configure brought me the following 2 ERROR messages directly:

1. Could NOT find Qt6WebSockets (missing: Qt6WebSockets_DIR)
   
   

   Configuring 'qtmqtt'
   -- Could NOT find Qt6WebSockets (missing: Qt6WebSockets_DIR)
   CMake Warning at qtbase/lib/cmake/Qt6/Qt6Config.cmake:263 (message):
     Failed to find Qt component "WebSockets".
    
     Expected Config file at
     "....../qt-everywhere-src-6.3.0/qtbase/lib/cmake/Qt6WebSockets/Qt6WebSocketsConfig.cmake"
     does NOT exist
    
   Call Stack (most recent call first):
     qtmqtt/CMakeLists.txt:14 (find_package)

   Configuring 'qtmqtt'
   -- Could NOT find Qt6WebSockets (missing: Qt6WebSockets_DIR)
   CMake Warning at qtbase/lib/cmake/Qt6/Qt6Config.cmake:263 (message):
     Failed to find Qt component "WebSockets".
   
     Expected Config file at
     "....../qt-everywhere-src-6.3.0/qtbase/lib/cmake/Qt6WebSockets/Qt6WebSocketsConfig.cmake"
     does NOT exist
   
   Call Stack (most recent call first):
     qtmqtt/CMakeLists.txt:14 (find_package)

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   And line **14** of `qtmqtt/CMakeLists.txt` is
   

   find_package(Qt6 ${PROJECT_VERSION} CONFIG OPTIONAL_COMPONENTS Quick WebSockets # For tests # special case
                                                                  Gui Widgets) # For examples # special case

   find_package(Qt6 ${PROJECT_VERSION} CONFIG OPTIONAL_COMPONENTS Quick WebSockets # For tests # special case
                                                                  Gui Widgets) # For examples # special case

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2. Targets not yet defined: draco_static
   
   

   Configuring 'qtquick3d'
   CMake Error at /usr/lib/x86_64-linux-gnu/cmake/draco/draco-targets.cmake:37 (message):
     Some (but not all) targets in this export set were already defined.
    
     Targets Defined: draco_shared
    
     Targets not yet defined: draco_static
    
   Call Stack (most recent call first):
     /usr/lib/x86_64-linux-gnu/cmake/draco/draco-config.cmake:36 (include)
     /usr/lib/x86_64-linux-gnu/cmake/assimp-5.2/assimpConfig.cmake:37 (find_package)
     qtquick3d/cmake/FindWrapQuick3DAssimp.cmake:7 (find_package)
     qtbase/cmake/QtFindPackageHelpers.cmake:130 (find_package)
     qtquick3d/src/plugins/assetimporters/configure.cmake:13 (qt_find_package)
     qtquick3d/src/plugins/assetimporters/CMakeLists.txt:9 (include)

   Configuring 'qtquick3d'
   CMake Error at /usr/lib/x86_64-linux-gnu/cmake/draco/draco-targets.cmake:37 (message):
     Some (but not all) targets in this export set were already defined.
   
     Targets Defined: draco_shared
   
     Targets not yet defined: draco_static
   
   Call Stack (most recent call first):
     /usr/lib/x86_64-linux-gnu/cmake/draco/draco-config.cmake:36 (include)
     /usr/lib/x86_64-linux-gnu/cmake/assimp-5.2/assimpConfig.cmake:37 (find_package)
     qtquick3d/cmake/FindWrapQuick3DAssimp.cmake:7 (find_package)
     qtbase/cmake/QtFindPackageHelpers.cmake:130 (find_package)
     qtquick3d/src/plugins/assetimporters/configure.cmake:13 (qt_find_package)
     qtquick3d/src/plugins/assetimporters/CMakeLists.txt:9 (include)

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Can anybody give me a hand please?

Thank you very much...