Module "QtWebKit" is not installed, when running my snap

I am creating a snap which will run an application that I already have compiled with Qt 4.8 designed with c++ and QML.

  • I use core18 since I use Qt 4.8.
  • I create the snap from Ubuntu 18.04 amd64.
  • snapcraft, version 2.43.1+18.4.1
  • Install on a machine with Ubuntu 22.04:
            snap --version
            snap    2.61.2
            snapd   2.61.2
            series  16
            ubuntu  22.04
            kernel  6.5.0-21-generic

I generate the snap with snapcraft without problems, but when installing the snap, it does not find the QtWebKit module. The libraries are installed, but the application still does not work.

I hope you can help me.

My yaml:

name: lectoralmacen
base: core18
version: '1.1'
summary: Sistema de datawarehouse
description: |
  Sistema de datawarehouse.


grade: stable
confinement: classic
architectures:
  - build-on: amd64


apps:
  lectoralmacen:
    command: bin/launch-lectoralmacen
    environment:
      LD_LIBRARY_PATH: $LD_LIBRARY_PATH:$SNAP/usr/lib/x86_64-linux-gnu/qt4:$PATH
      FONTCONFIG_FILE: $SNAP/etc/fonts/fonts.conf
      FONTCONFIG_PATH: $SNAP/etc/fonts
      QT_PLUGIN_PATH: $SNAP/usr/lib/x86_64-linux-gnu/qt4/plugins
      QT_PLUGIN_PATH: $SNAP/usr/lib/x86_64-linux-gnu/qt4/plugins
      QML2_IMPORT_PATH: $SNAP/usr/lib/x86_64-linux-gnu/qt4/imports
    plugs:
      - network
      - network-bind
      - home
      - cups-control
      - opengl
      - desktop
      - desktop-legacy
      - removable-media
      - wayland
      - x11


parts:
  lectoralmacen:
    plugin: dump
    source: /opt/LectorAlmacen
    stage-packages:
      - qtcore4-l10n
      - qtchooser
      - qdbus
      - libmng2
      - libqt4-dbus
      - libqtdbus4 
      - libasound2
      - libnss3
      - libx11-6
      - libx11-xcb1
      - libxcb1
      - libxcomposite1
      - libxcursor1
      - libxdamage1
      - libxext6
      - libxfixes3
      - libxi6
      - libxrender1
      - libxtst6
      - libgcc1
      - libc6
      - libqt4-declarative
      - libqt4-sql
      - libqt4-xml
      - libqt4-xmlpatterns
      - libqtcore4
      - libqtgui4
      - libqtwebkit-qmlwebkitplugin
      - libqt4-sql-mysql
      - libqt4-declarative-particles
      - libcurl4
      - libqt4-svg
      - libmysqlclient20
      - libstdc++6
      - libqt4-dev  
      - libssl1.1
      - mysql-common
      - libssl-dev
      - libmysqlclient-dev
      - libqtwebkit4
      - libqtwebkit4-dbg
      - libfontconfig1
      - libqtscript4-webkit
      - libgl1-mesa-glx
      - libgl1
      - libglib2.0-0
      - libgstreamer-plugins-base1.0-0
      - libgstreamer1.0-0
      - libjpeg8
      - libpng16-16
      - libqt4-network
      - libqt4-script
      - libqt4-opengl
      - libsqlite3-0
      - libxml2
      - libxslt1.1
      - zlib1g
      - libpcre3 
      - libuuid1
      - binutils
      - libqtwebkit-dev