Andrea, Thank you very much for your kind help. Based on what you said, I uninstalled and cleaned all traces of QGIS. Then I installed the 3.40.6 (Bratislava) LTS download (not installer). I was able to clip by mask layer for the first time ever. It appeared to work, but I got an error message that I will report in my other thread. I think I am back in the saddle now with QGIS, thanks to you. Tom -- Tom Haws 480-201-5476 (founder of NPS <http://npsge.org/> 480-389-4583) I am looking to join financial and intellectual forces with like minds and hearts to buy (or build) and hold apartment complexes in perpetual trusts. Let's talk. I am transitioning away from this personal address (to npsglobal...@gmail.com) for engineering.
On Thu, May 8, 2025 at 4:48 PM Andrea Giudiceandrea via QGIS-User < qgis-user@lists.osgeo.org> wrote: > > Tom Haws tom.haws at gmail.com > > Thu May 8 12:47:53 PDT 2025 > > > After installing OSGEO4W, I am having the following issues: > > 1. There are six versions of QGIS in my Windows Start Menu, and I don't > > know which one to run. > > Hi Tom, > the installation guide says: > > *** > Download OSGeo4W Installer and run it. > > Choose Express Install and select QGIS to install the latest release > and/or QGIS LTR to install the long term release. > > Alternatively, instead of doing the Express install, you can use the > Advanced Install, navigate to the Desktop section and pick one or more > of the following packages: > .... > *** > > It's up to you to decide which version of QGIS to install. It looks like > you have decided to install all the available QGIS versions. > > > 2. There is a new folder Desktop\OSGeo4W that has only shortcuts (over > 30) > > in it. I don't know if I can safely delete it. > > Not sure what do you mean with "safely". > If the folder contains over 30 shortcuts, I guess you have installed > every single package available through OSGeo4W. That is not recommanded > and not needed. > > > 3. If I start 3.40.6, > > a. the splash screen says it is "Long Term Release". > > > This is correct. > > From the "Download" web page: > > "The long-term builds currently provide 3.40.6 'Bratislava'. Long Term > Release (LTR) builds are intended for those who value stability over > having the latest features. If you are unsure which version is best for > you, download the LTR." > > > > i. When I set the CRS to WGS84 (EPSG:4978) and try to add a raster > > layer on EPGS:6341, I am getting this error message: "No transform is > > available between NAD83(2011) / UTM zone 12N + NAVD88 height and > EPSG:4978 > > - WGS 84. > > First of all, are you sure you actually need to use the Geocentric CRS > EPSG:4978 WGS 84? Usually the Geographic CRS EPSG:4326 WGS 84 is used. > > Anyway, based on your other message, I guess the issue may be due to the > fact that in your OSGeo4W installation, the PROJ library related > packages are not up-to-date. > > Regards. > > Andrea > _______________________________________________ > QGIS-User mailing list > QGIS-User@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user >
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