Unable to Locate QSWAT+ Download Link and Installation Instructions

[Mahesh Maskey]

Dear QSWAT Team,

I hope this message finds you well. I am currently working on a watershed modeling project using QSWAT, but I have encountered repeated errors related to missing fields such as PolygonId and LINKNO. Based on the documentation and community discussions, it seems these issues are better addressed in QSWAT+, which integrates more effectively with the SWAT+ framework and Editor.

However, I have been unable to find an active download link or installation repository for QSWAT+. The XML link referenced in older guides (https://swatplus.gitlab.io/qswatplus/qswatplus.xml) now returns a 404 error, and the plugin does not appear in the QGIS Plugin Manager.

I am a beginner to SWAT+, although I am a quick learner with prior experience in APEX and hydrologic modeling. I would be grateful if you could kindly share:

1. The current, official download source or GitHub repository for QSWAT+.

2. Any updated installation instructions compatible with recent QGIS versions (e.g., 3.28 or 3.34 LTR).

Additionally, if anyone in the community is interested in unpaid, voluntary collaboration or knowledge exchange, I would be glad to connect. Let’s learn, teach, and grow together as we explore SWAT+, APEX, and related hydrologic modeling tools.

Thank you very much for your time and for maintaining such valuable resources for the watershed and hydrologic modeling community.

Warm regards,

Mahesh L. Maskey, Ph. D. in Hydrologic Sciences.

Research Computational Hydrologist

Agrohydrology, Hydroinformatics and Computational Hydrology

Professor of Hydrology in FEWEC Nexus

Cell: (530) 220-5562
Email: mma...@formerstudents.ucdavis.edu

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