I'm experiencing an error when trying to run a heatmap in QGIS. I just downloaded QGIS 2.18.10 'Las Palmas' on my Windows 10 Laptop as the 64 bit option.

I am hoping to run some very simple heatmaps, following the instructions laid out here: http://www.qgistutorials.com/en/docs/creating_heatmaps.html.

I was able to follow those steps without issues when I used this in the past, but this time I get stuck after step 10 (converting the delimited text layer which I had imported from a CSV file to create the raster layer). When I follow the steps to add this layer, I receive the error "Raster update error: Could not open the created raster for updating. The heatmap was not generated."

My heatmap plugin came already installed, and I don't have the option to uninstall/reinstall it. Also I have already attempted to restart the program as the previous user had done.

Does anyone have suggestions as to what may have gone wrong, or what I should do differently?

Alternate instructions for creating a heatmap (to later layer over a world map and/or street view)?

  • Can you add more information, like screenshot of your CSV import and heatmap plugin configuration. Tested this tutorial CSV on QGIS 2.18.10 (Mint 64bit) and it works well.
    – Oto Kaláb
    Commented Jun 27, 2017 at 19:38
  • 1
    Problem solved! Turns out I hadn't specified the file location (I gave it a name but not a destination in a folder). Dumb mistake and simple fix :)
    – XtinaO
    Commented Jun 27, 2017 at 19:56
  • @xtiano Great! :) You can add the solution as an answer and accept it to mark this problem as solved.
    – Oto Kaláb
    Commented Jun 28, 2017 at 15:37

1 Answer 1


Posting an answer to my own question - turns out I made the simple error of not specifying a file destination for the raster. I gave it a file name, but not a location, and that seems to be the cause of the error!

  • I also turn the file name into the complete location, then it works! Thanks!
    – A-Wen
    Commented Oct 7, 2017 at 4:06

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.