Crash on QGIS 3.34/3.36#

Author : Chengyan Fan (Fancy)
Date : 2024-05-02

The latest version of QGIS 3.34/3.36 will crash when trying to load features using the Geo-SAM plugin. This issue may be due to library mismatch of rtree in torchgeo and QGIS. More information can be found in the following links: qgis/QGIS#57320 and coolzhao/Geo-SAM#43.

Reason#

Currently, the rtree in QGIS is still using the old version (<1.0). However, torchgeo requires the version of rtree should be greater than 1.0 for Python 3.10. This leads to torchgeo will upgrade the rtree to the latest version. When running the Geo-SAM plugin in QGIS, the rtree version mismatch will cause the crash.

Solution#

To solve this issue, you need to remove the rtree package using pip and then reinstall it using system package manager.

Note

This solution only illustrates how to solve the issue in Ubuntu. If you are using other operating systems, please refer to the corresponding package manager to install the rtree package.

Remove the rtree package using pip in QGIS:

cd /usr/bin

./pip3 uninstall rtree

Install the rtree package using system package manager:

sudo apt-get install python3-rtree

Download the latest version of the Geo-SAM plugin from main branch of Geo-SAM and reinstall it.

After following the above steps, you should be able to run the Geo-SAM plugin in QGIS without any crashes.