enter image description hereenter image description hereI'm working in Qgis 2.14 and have received multiple raster files for the Height of a terrain that combined covers the entire terrain I’m interested in.

I would like to combine them. Because the specific areas sometime overlap between two Rasters calculations are difficult.

I have tried using the following tools :

  • Raster-> Miscellaneous-> Merge tool
  • Raster-> Miscellaneous-> Build Virtual Raster (Catalog)
  • Raster-> Miscellaneous-> Build overviews (Pyramids).

However, they all inform me that I either do not have the permission/rights to use these tools or the tools are not installed or have disappeared. Does anyone know is these tools belong to some plugin? I have tried to look through the plugins but have not found them. However there are so many I could have missed it!

the top picture is the error message i get when i try to make a catalog of the Raster files.

I have tried to change the folder mentioned in the comments to the first answer but i get the message shown in the button picture.

  • 1
    I would try running it from a non-Dropbox file. QGIS might not have permission to write/read from Dropbox. Apr 8, 2019 at 12:09

1 Answer 1


The catalog tool should do the trick. There is an option to select which behaviour you want to use in the overlapping areas.

The tools should be present in the default installation. Check that the processing plugin is installed and it should work.

  • The Processing plugin is installed but the catalog tool stil tells me that it cant start. what it tells me is "The process could not start. Either the program is missing, or you may not have enough privileges to launch the program." this has been translated from Danish so it may not be accurate but at least close. Apr 18, 2018 at 12:16
  • Could you update to Qgis 2.18, which is the latest long term version? 2.14 is now deprecated. Also what is your OS?
    – Kantan
    Apr 18, 2018 at 12:29
  • Hallo again sorry for the late reply. if you mean my operating system it is Windows 8. also would updating my Qgis make problems for me if i keep using the same projects? Apr 19, 2018 at 7:37
  • No worries! I run windows 8.1, but I've never had any problem upgrading Qgis. You might experience minor issues if you try to open a project saved with a newer version of Qgis(2.18) in 2.14, but I've never had any issue opening a project after upgrading. I'd strongly recommend upgrading, as there were a lot of improvements since 2.14! Stick with the LTS release though, Qgis 3.0 might still be a bit rough on the angles, wait a bit more if you're unsure. To ease the process, you can use OSGeo4W and run it once a month to keep up with the updates.
    – Kantan
    Apr 19, 2018 at 7:54
  • Thank you i will properly try that but have to ask my boss first i think. Apr 19, 2018 at 8:08

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