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<div dir="ltr" data-setdir="false">You have several of options, two of the fastest solutions are to: </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">1) use the GRASS tool r.patch to stitch rasters together. You can find it by entering "r.patch" into the search bar at the bottom left of the main QGIS window.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">2) download the QGIS LTR, 3.10.12 - <span>A Coruña instead. This runs on an older version of GDAL and the binaries are all there.</span></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Unfortunately many of the GDAL tools are not working in QGIS 3.16.0 (Hannover) on MacOS. The python scripts do not seem to have the full code that is required for them to run. The C binaries are there and work, but you would have to use them from the command line. So you know the MacOS versions of QGIS downloaded from the QGIS.org website are usually packaged with all of the libraries that they need, so installing GDAL separately will not help.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">-Thayer</div><div dir="ltr" data-setdir="false"><br></div><div><br></div><div><br></div></div><div id="ydp4a55917eyahoo_quoted_6669914855" class="ydp4a55917eyahoo_quoted"><div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;"><div><div dir="ltr">Date: Wed, 25 Nov 2020 16:31:29 +0800 (GMT+08:00)<br></div><div dir="ltr">From: ??? <<a href="mailto:kxh@ieecas.cn" rel="nofollow" target="_blank">kxh@ieecas.cn</a>><br></div><div dir="ltr">To: <a href="mailto:qgis-user@lists.osgeo.org" rel="nofollow" target="_blank">qgis-user@lists.osgeo.org</a><br></div><div dir="ltr">Subject: [Qgis-user] asking for help<br></div><div dir="ltr">Message-ID: <<a href="mailto:7bf465d2.166b0.175fe876e02.Coremail.kxh@ieecas.cn" rel="nofollow" target="_blank">7bf465d2.166b0.175fe876e02.Coremail.kxh@ieecas.cn</a>><br></div><div dir="ltr">Content-Type: text/plain; charset="utf-8"<br></div><div dir="ltr"><br></div><div dir="ltr">Dear members,<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"> I use QGIS 3.16 for macOS, when I was trying to merge rasters, it always failed, the error is as below:<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">return importlib.import_module('_gdal')<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">File "/Applications/QGIS.app/Contents/MacOS/lib/python3.7/importlib/__init__.py", line 127, in import_module<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">return _bootstrap._gcd_import(name[level:], package, level)<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">ModuleNotFoundError: No module named '_gdal'<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">Execution completed in 0.56 seconds<br></div><div dir="ltr"><br></div><div dir="ltr">Results:<br></div><div dir="ltr"><br></div><div dir="ltr">{'OUTPUT': '/private/var/folders/m8/vj8dzh4j23508f625n2xwz8h0000gn/T/processing_OcDNUf/3c10084f4ae5484787b578e2ad8c5a39/OUTPUT.tif'}<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">I also install GDAL for python, but it doesn't change anyway.<br></div><div dir="ltr"><br></div><div dir="ltr">Does anyone can help me with this problem?<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">Thanks.<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">Sincerely, <br></div><div dir="ltr"><br></div><div dir="ltr">Xianghui Kong<br></div><div dir="ltr">-------------- next part --------------<br></div><div dir="ltr">An HTML attachment was scrubbed...<br></div><div dir="ltr">URL: <<a href="http://lists.osgeo.org/pipermail/qgis-user/attachments/20201125/cbff19a5/attachment-0001.html" rel="nofollow" target="_blank">http://lists.osgeo.org/pipermail/qgis-user/attachments/20201125/cbff19a5/attachment-0001.html</a>><br></div><div dir="ltr"><br></div><div dir="ltr">------------------------------<br></div><div dir="ltr"><br></div><div dir="ltr"><br></div></div>
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