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Hi Leonardo,<br>
have you updated all the installed OSGeo4W packages to the latest
versions using the OSGeo4W Setup?<br>
Some issues that could lead to the "Could not load qgis_App.dll"
error in particular systems have been recently fixed in the latest
version of some packages.<br>
<br>
Otherwise, in this cases checking what's wrong with the DLLs is
needed as described in <a class="moz-txt-link-freetext"
href="https://trac.osgeo.org/osgeo4w/ticket/748#comment:5"
moz-do-not-send="true">https://trac.osgeo.org/osgeo4w/ticket/748#comment:5</a>
and <a class="moz-txt-link-freetext"
href="https://github.com/qgis/QGIS/issues/26891#issuecomment-495889169"
moz-do-not-send="true">https://github.com/qgis/QGIS/issues/26891#issuecomment-495889169</a><br>
<br>
Best regards.<br>
<br>
Andrea Giudiceandrea<br>
<br>
<br>
<div class="moz-cite-prefix">Il 04/07/2022 09:31, Leonardo Donnini
ha scritto:<br>
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<blockquote type="cite"
cite="mid:733ffa80-51fe-49ce-91c3-dc8553c715ca@bonibit.com">
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<p>Hi Andrea,<br>
after manually installed the Microsoft Visual C++
Redistributable Package (Visual Studio 2015, 2017, 2019 e 2022)
the error message loading QGIS was changed in :<br>
<i><font color="#0000ff">Could not load qgis_App.dll </font></i><br>
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