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    <p>Hello Alister,</p>
    <p>in the meantime I did an update on a second computer from QGIS
      3.20.3 to QGIS 3.22.0, and from QGIS 3.16.11 to 3.16.13 using the
      OSGEO4W installer. The result is:</p>
    <p>QGIS 3.22.0 displays the GRASS init error, the GRASS 7 plugin
      cannot be used, the GRASS processing algorithms are working.</p>
    <p>QGIS 3.16.13 is working without any problems. Both, the GRASS 7
      plugin and the GRASS processing algorithms can be used.</p>
    <p><br>
    </p>
    <p>As far as I understood the GRASS 7 plugin in QGIS 3.22 'want to
      see' a GRASS version which is not installed whereas the GRASS 7
      plugin which came with QGIS 3.16.13 is satisfied with the
      installed GRASS version. But I do not have any idea how telling
      the GRASS 7 plugin of QGIS 3.22 that it should take what is
      installed.</p>
    <p><br>
    </p>
    <p>Regards</p>
    <p><br>
    </p>
    <p>Martin</p>
    <p><br>
    </p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">Am 11/10/2021 um 7:43 AM schrieb
      Alister Hood:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAF6hL+Vpq-SjuaiwZs=HN3H6etjKUpjDZwzdq9irpED91iQ4YQ@mail.gmail.com">
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            <div class="gmail_quote">
              <blockquote class="gmail_quote" style="margin:0px 0px 0px
                0.8ex;border-left:1px solid
                rgb(204,204,204);padding-left:1ex">Date: Mon, 8 Nov 2021
                22:31:30 -0300<br>
                From: Martin Bittens <<a
                  href="mailto:martin.bittens@gmx.de" target="_blank"
                  moz-do-not-send="true" class="moz-txt-link-freetext">martin.bittens@gmx.de</a>><br>
                To: <a href="mailto:qgis-user@lists.osgeo.org"
                  target="_blank" moz-do-not-send="true"
                  class="moz-txt-link-freetext">qgis-user@lists.osgeo.org</a><br>
                Subject: [Qgis-user] QGIS 3.22 - GRASS Init-Error<br>
                Message-ID: <<a
                  href="mailto:8f3b2b78-bfc8-1040-bf42-873b8ec46d47@gmx.de"
                  target="_blank" moz-do-not-send="true"
                  class="moz-txt-link-freetext">8f3b2b78-bfc8-1040-bf42-873b8ec46d47@gmx.de</a>><br>
                Content-Type: text/plain; charset=UTF-8; format=flowed<br>
                <br>
                Hello QGIS User Group!<br>
                <br>
                Today I did the update from QGIS 3.20 to 3.22 using the
                Win10 64bit?<br>
                installer 'osgeo4w-setup.exe' provided on the QGIS
                homepage. When I<br>
                opened the new QGIS version I received the following
                warning:<br>
                <br>
                 ?GRASS init error : Problem in GRASS initialization,
                GRASS provider and<br>
                plugin will not work : Module built against version<br>
                2021-10-11T09:56:15+00:00 but trying to use version<br>
                2021-11-01T10:26:16+00:00. You need to rebuild GRASS GIS
                or untangle<br>
                multiple installations.<br>
                <br>
                Obviously, something does not fit. But what?<br>
                <br>
                Are there any ideas? I also did the update from 3.16.11
                to 3.16.13 (the<br>
                LTR versions) and did not this problem...<br>
                <br>
                <br>
                Thank you<br>
                <br>
                <br>
                Martin<br>
              </blockquote>
              <div><br>
              </div>
              <div>I installed 3.22 today using the standalone Windows
                installer, not the OSGEO4W installer, and I got the same
                error on startup.</div>
              <div>Both the Grass Plugin and Provider show in the plugin
                manager as loaded, but I haven't tried using them to
                confirm it is truly broken. </div>
              <div>I note that the Grass processing algorithms do still
                work.<br>
              </div>
              <div><br>
              </div>
              <div>Regards,</div>
              <div>Alister</div>
            </div>
          </div>
        </div>
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