SOLWEIG error TDSM filepath not defined

[cdbell01]

Describe the bug I'm encountering an error when running Solweig with a TDSM I've created myself. If I uncheck "Trunk zone DSM exist" and use the built-in TDSM generator in Solweig - Solweig runs great with the other inputs. The output seems correct. Note, I did not use the UMEP Tree Generator to create the TDSM, I used the raster calculator.

To Reproduce Steps to reproduce the behavior:

1. Open the Solweig processor menu and fill in all inputs
2. Check "Trunk zone DSM exist"
3. Input a raster layer for the TDSM
4. Press run
5. See error log below

Desktop (please complete the following information):

• OS: macOS
• QGIS Version 3.16.4-Hanover
• UMEP Version 3.16.1 (installed from the develop branch on 3/11/21)
• SuPy Version unknown

Error log Traceback (most recent call last):
              File "/Users/colinbell/Library/Application Support/QGIS/QGIS3/profiles/default/python/plugins/UMEP-SuPy-QGIS3/SOLWEIG/solweig.py", line 411, in start_progress
              dataSet = gdal.Open(filePath_tdsm)
             NameError: name 'filePath_tdsm' is not defined

[biglimp]

Fixed. I can also recommend to use SOLWEIG in UMEP for processing (https://plugins.qgis.org/plugins/processing_umep/)