Bug report #16463: regression: simple qgis model broken (raster inputs + gdal algorithm) - QGIS Application - QGIS Issue Tracking

Bug report #16463

regression: simple qgis model broken (raster inputs + gdal algorithm)

Added by Mathieu Pellerin - nIRV about 7 years ago. Updated almost 7 years ago.

Status:	Closed
Priority:	High
Assignee:	Nyall Dawson
Category:	Processing/Core
Affected QGIS version:	master	Regression?:	Yes
Operating System:		Easy fix?:	No
Pull Request or Patch supplied:	No	Resolution:
Crashes QGIS or corrupts data:	No	Copied to github as #:	24372

Description

A regression has found its way into QGIS master amid processing refactoring, whereas a simple model (three raster inputs & one gdal "create virtual raster" algorithm) doesn't work anymore.

Steps to reproduce

Open QGIS
Create a new model, and load the attached model file (build_rgb_vrt2.model)
Save the model, and restart QGIS to see the newly added model in the processing toolbox list
Try to execute the model, the following error will appear:

An error has occurred while executing Python code: 

RuntimeError: wrapped C/C++ object of type ModelerAlgorithm has been deleted 
Traceback (most recent call last):
  File "/home/webmaster/apps/share/qgis/python/plugins/processing/gui/ProcessingToolbox.py", line 252, in executeAlgorithm
    alg = QgsApplication.processingRegistry().algorithmById(item.alg.id())
RuntimeError: wrapped C/C++ object of type ModelerAlgorithm has been deleted

build_rgb_vrt2.model (5.47 KB) Mathieu Pellerin - nIRV, 2017-04-23 09:51 PM

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