Win 10 - VS 2019 - QT 5.15 -

• Jul 1, 2020 - 16:43

First time compilation using VS2019 x 64 and QT 5.15 on W10 PC and get a Qt5QmlModels.dll not found error. Can anybody point me in the right direction on how to resolve this please
Many thanks
Dave

Attachment	Size
QT5qmlmodels.PNG	6.11 KB
debug.txt	8.13 KB

Comments

Jojo-Schmitz

• Jul 1, 2020 - 16:54

Did you run the Install step?

Hmm, I don't think this dll is needed. Or is found in %Path%, in C:\Qt\5.15.0\msvc2019_64\bin\
If so we may need to add it to the install step, for Qt 5.15 (it doesn't seem to exist in earlier versions, not in 5.12.9 at least)

Seems it is part of Qt since 5.14.
Try this:

diff --git a/build/FindQt5.cmake b/build/FindQt5.cmake
index b6ac36501..817cdcdcd 100644
--- a/build/FindQt5.cmake
+++ b/build/FindQt5.cmake
@@ -28,6 +28,12 @@ if (USE_WEBENGINE)
     WebEngineWidgets
        )
 endif(USE_WEBENGINE)
+if (Qt5Widgets_VERSION VERSION_GREATER_EQUAL "5.14.0")
+  set(_components
+    ${_components}
+    QmlModels
+  )
+endif(Qt5Widgets_VERSION VERSION_GREATER_EQUAL "5.14.0")
 
 if (WIN32)
     set(_components

dehwall

• Jul 1, 2020 - 17:24

Yes ran the install step - rerun attached

Attachment	Size
install.txt	187.44 KB

Jojo-Schmitz

• Jul 1, 2020 - 17:39

see my edit above

Jojo-Schmitz

• Jul 1, 2020 - 18:27

Please let me know whether tie above changes helps, then I'll submit it as a Pull Request

dehwall

• Jul 1, 2020 - 19:28

Hi Jojo,
No luck I'm afraid.
if (USE_WEBENGINE)
set(_components
${_components}
WebEngine ---- initially commented these out as well but needed in build
WebEngineCore --- ---- initially commented these out as well but needed in build
WebEngineWidgets
)
endif(USE_WEBENGINE)

QmlModels - DEHW

if (Qt5Widgets_VERSION VERSION_GREATER_EQUAL "5.14.0")
set(_components
${_components}
QmlModels
)
endif(Qt5Widgets_VERSION VERSION_GREATER_EQUAL "5.14.0")

End QmlModels - DEHW

Removed both msvc.build_x64 and msvc.install_x64 folders
Regenerated Cmake Cache
mscore build
install build
Debug run within VS2019 16.6.3

Same error
Regards
Dave

Attachment	Size
debug.txt	7.27 KB
install build.txt	187.44 KB
mscore build.txt	72.26 KB

Jojo-Schmitz

• Jul 1, 2020 - 20:14

You do need to install WebEngine for sure

dehwall

• Jul 1, 2020 - 20:29

Yes I know - I put it back in so effectively the only thing that changed was checking version >= 5.14 and adding qmlmodels - but it still did not work

Dave

Jojo-Schmitz

• Jul 1, 2020 - 20:34

Has the MuseScore install step copied that dll into the bin dir?
Hmm, apparently not, strange.

dehwall

• Jul 2, 2020 - 10:18

No it has not been copied...

Attachment	Size
NoQMLModels.PNG	10.16 KB

Jojo-Schmitz

• Jul 2, 2020 - 11:31

I suspect Qt5Widgets_VERSION isn't known at that point. Comment out the if ... and the endif... and try again.
Waenwhile I'm trying a different approach...

Jojo-Schmitz

• Jul 2, 2020 - 12:19

Try this:

diff --git a/main/CMakeLists.txt b/main/CMakeLists.txt
index 08d4ca13a..e784d2d3c 100644
--- a/main/CMakeLists.txt
+++ b/main/CMakeLists.txt
@@ -190,6 +190,11 @@ if (MINGW)
       ${QtInstallLibraries}
       ${PROJECT_SOURCE_DIR}/build/qt.conf
       DESTINATION bin)
+   if (Qt5Widgets_VERSION VERSION_GREATER_EQUAL "5.14.0")
+      install( FILES
+         ${QT_INSTALL_BINS}/Qt5QmlModels.dll
+         DESTINATION bin)
+   endif (Qt5Widgets_VERSION VERSION_GREATER_EQUAL "5.14.0")
    if (Qt5Widgets_VERSION VERSION_LESS "5.12.4")
       install( FILES
          ${MINGW_ROOT}/opt/bin/libeay32.dll
@@ -363,6 +368,9 @@ else (MINGW)
       if (USE_WEBENGINE)
          list(APPEND dlls_to_copy "${QT_INSTALL_BINS}/Qt5WebEngineWidgets.dll" "${QT_INSTALL_BINS}/Qt5WebEngineCore.dll")
       endif(USE_WEBENGINE)
+      if (Qt5Widgets_VERSION VERSION_GREATER_EQUAL "5.14.0")
+         list(APPEND dlls_to_copy "${QT_INSTALL_BINS}/Qt5QmlModels.dll")
+      endif (Qt5Widgets_VERSION VERSION_GREATER_EQUAL "5.14.0")
 
       set(CMAKE_FIND_LIBRARY_PREFIX "")
       set(CMAKE_FIND_LIBRARY_SUFFIXES ".dll")

It does the copy for me (on the build already, no install step needed for this).

dehwall

• Jul 2, 2020 - 13:06

Jojo,

That did the trick!
Many thanks for your help - maybe I can start contributing in the future once I get my head around everything.
It's a little bit different from Delphi & SQL Server....
Thanks again
Dave

Attachment	Size
Success.PNG	126.49 KB

Jojo-Schmitz

• Jul 2, 2020 - 13:40

But now I don't have any palette nor the inspector, same for you?
Works fine when I'm back to Qt 5.12.9

dehwall

• Jul 2, 2020 - 13:52

I was just about to let you know the same - No palette or inspector....
Dave

Jojo-Schmitz

• Jul 2, 2020 - 13:58

Thanks for confirming. Something is severely amiss here.
It does work with Qt 5.12.9 and 5.9.9 though, this might be an option for you. We're not yet using 5.15 really, although I did (quite) some work on it.

dehwall

• Jul 2, 2020 - 20:22

Also works with QT 5.13.2...

Jojo-Schmitz

• Jul 2, 2020 - 20:30

I guess the problem starts with 5.14, with the introduction of that dll

Jojo-Schmitz

• Jul 2, 2020 - 14:12

PR has been merged
The need for it apparently got introduced with or around befa7a0

The empty palette and inspector for Qt 5.15 might been introduced with the same commits?