WARNING: lib not found: Qt5WebKitd.dll, Qt5Cored.dll pyinstaller

Question

I'm compiling a python script to .exe. But the output return some sort of missing lib. I tried to change the path using --path to the python qt/bin but same error. I tried console based, windowed, onefile even everything in pyinstaller. But same problem. When I run the script using python It work properly.

Screenshot of Working Python script when I run it using Python

Screenshot When I run it from the compiled .exe

import sys
from PyQt5.QtWidgets import QMainWindow,QApplication,QLineEdit,QPushButton,QTabWidget,QVBoxLayout,QWidget
from PyQt5.QtWebKitWidgets import *
app=QApplication(sys.argv)
tabs=QTabWidget()
tabs.resize(400,300)
mainWindow=QMainWindow()
widget=QWidget()
mainWindow=QMainWindow()
mainWindow.setWindowTitle("Sprotechs")
web=QWebView()
web.load(QUrl("https://google.com"))

verticalLayout=QVBoxLayout()
verticalLayout.addWidget(web)

widget.setLayout(verticalLayout)
mainWindow.setCentralWidget(widget)
mainWindow.show()

sys.exit(app.exec_())

Error Output

21734 INFO: Looking for dynamic libraries 23408 WARNING: lib not found: Qt53DLogic.dll dependency of C:\users\shop 129 c\a ppdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit \qtquickscene3dplugin.dll 23445 WARNING: lib not found: Qt53DInput.dll dependency of C:\users\shop 129 c\a ppdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit \qtquickscene3dplugin.dll 23491 WARNING: lib not found: Qt53DRender.dll dependency of C:\users\shop 129 c\ appdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKi t\qtquickscene3dplugin.dll 23520 WARNING: lib not found: Qt53DCore.dll dependency of C:\users\shop 129 c\ap pdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit\ qtquickscene3dplugin.dll 27549 WARNING: lib not found: Qt53DQuickScene2D.dll dependency of C:\users\shop 129 c\appdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\Q tQuick\Scene2D\qtquickscene2dplugin.dll 27608 WARNING: lib not found: Qt53DRender.dll dependency of C:\users\shop 129 c\ appdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtQuick \Scene2D\qtquickscene2dplugin.dll 27653 WARNING: lib not found: Qt53DCore.dll dependency of C:\users\shop 129 c\ap pdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtQuick\S cene2D\qtquickscene2dplugin.dll 29883 WARNING: lib not found: Qt5Qmld.dll dependency of C:\users\shop 129 c\appd ata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit\ex perimental\qmlwebkitexperimentalplugind.dll 29914 WARNING: lib not found: Qt5Cored.dll dependency of C:\users\shop 129 c\app data\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit\e xperimental\qmlwebkitexperimentalplugind.dll 29948 WARNING: lib not found: Qt5WebKitd.dll dependency of C:\users\shop 129 c\a ppdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit \experimental\qmlwebkitexperimentalplugind.dll 29980 WARNING: lib not found: ucrtbased.dll dependency of C:\users\shop 129 c\ap pdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit\ experimental\qmlwebkitexperimentalplugind.dll 30010 WARNING: lib not found: VCRUNTIME140D.dll dependency of C:\users\shop 129 c\appdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWeb Kit\experimental\qmlwebkitexperimentalplugind.dll 30041 WARNING: lib not found: Qt5Quickd.dll dependency of C:\users\shop 129 c\ap pdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit\ experimental\qmlwebkitexperimentalplugind.dll 30320 WARNING: lib not found: Qt5Qmld.dll dependency of C:\users\shop 129 c\appd ata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit\qm lwebkitplugind.dll 30347 WARNING: lib not found: Qt5Cored.dll dependency of C:\users\shop 129 c\app data\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit\q mlwebkitplugind.dll 30378 WARNING: lib not found: Qt5WebKitd.dll dependency of C:\users\shop 129 c\a ppdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit \qmlwebkitplugind.dll 30407 WARNING: lib not found: Qt5Networkd.dll dependency of C:\users\shop 129 c\ appdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKi t\qmlwebkitplugind.dll 30435 WARNING: lib not found: ucrtbased.dll dependency of C:\users\shop 129 c\ap pdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit\ qmlwebkitplugind.dll 30463 WARNING: lib not found: VCRUNTIME140D.dll dependency of C:\users\shop 129 c\appdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWeb Kit\qmlwebkitplugind.dll 30490 WARNING: lib not found: Qt5Quickd.dll dependency of C:\users\shop 129 c\ap pdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtWebKit\ qmlwebkitplugind.dll 30707 WARNING: lib not found: Qt53DLogic.dll dependency of C:\users\shop 129 c\a ppdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtQuick\ Scene3D\qtquickscene3dplugin.dll 30744 WARNING: lib not found: Qt53DInput.dll dependency of C:\users\shop 129 c\a ppdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtQuick\ Scene3D\qtquickscene3dplugin.dll 30783 WARNING: lib not found: Qt53DAnimation.dll dependency of C:\users\shop 129 c\appdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtQu ick\Scene3D\qtquickscene3dplugin.dll 30813 WARNING: lib not found: Qt53DRender.dll dependency of C:\users\shop 129 c\ appdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtQuick \Scene3D\qtquickscene3dplugin.dll 30843 WARNING: lib not found: Qt53DCore.dll dependency of C:\users\shop 129 c\ap pdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qml\QtQuick\S cene3D\qtquickscene3dplugin.dll 31251 WARNING: lib not found: Qt5MultimediaQuick_p.dll dependency of C:\users\sh op 129 c\appdata\local\programs\python\python37-32\lib\site-packages\PyQt5\Qt\qm l\QtMultimedia\declarative_multimedia.dll 34212 INFO: Looking for eggs 34212 INFO: Using Python library c:\users\shop 129 c\appdata\local\programs\pyth on\python37-32\python37.dll

Answer 1

hope you are doing good now.

if you still have the problem you are just missing some dll files. reinstalling or updating PyQt5 should fix this problem, and I see you are using WebKit so make sure you install PyQtWebEngine like this, in your command prompt of any other terminal you should write

pip install PyQtWebEngine

it will be downloaded and installed automatically, the other library Qt5Cored.dll looks like a Render library, I am not sure but no harm you can try

pip install PyQt3D

and check if the problem is solved, as a good practice build the file again like this

pyinstaller --onefile --collect-all PyQt5 script.py

the file will be slightly bigger size but it will be more stable.

Happy Coding.

Answer 2

Make sure you add to your environment PATH variable the path to your DLL. As it seems the pyinstaller is unable to find this dll when it is searching for all the dependencies that you have, hence at runtime when trying to start your application it is unable to.

In some cases it might simply be an error of pyinstaller so one needs to add manually the dll by using --add-data option: https://pyinstaller.readthedocs.io/en/stable/usage.html (for more details)

One basic way to test that everything works well is that in the _MEIxxxxxx temporary folder created to manually add the dll and to start again the exe.

Answer 3

have you tried making a python virtual environment, then installing all your needed packages and using pyinstaller? this may work and even output executable is very slimmer.