PolyPen: Unhandled Exception Caught: Exception caught

[aphixe]

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Questions not directly related to the RetopoFlow project are considered general and should be posted elsewhere (e.g. git, blender, python, etc).

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• Read through the README.md file in the branch used to assure the process taken is correct
• Check the existing issues and pull requests to make sure the issue has not already been reported and/or fixed.
• You can replicate the bug and will provide as much info as possible with blend files, screenshots, logfiles, as well as show the expected result and actual result.

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Issue Template

Issue:

I was using poly tool and then it crashed on me I was adding onto a part that had a quad.

{add any screenshots of the issue here}

How to Reproduce:

hard to say I just had a quad and I was splitting it with the poly tool

{attach any files needed to replicate the issue}

Automatically Generated Info

Environment:

- RetopoFlow: 3.4.4
- Build: CG Cookie built for Blender Market
- Blender: 4.02.1 blender-v4.2-release 2024-08-19
- Platform: Darwin, 23.6.0, Darwin Kernel Version 23.6.0: Mon Jul 29 21:14:46 PDT 2024; root:xnu-10063.141.2~1/RELEASE_ARM64_T6031, arm64, arm
- GPU: {'backend': 'METAL', 'device': 'APPLE', 'vendor': 'Apple M3 Max', 'renderer': 'Metal API', 'version': '1.2', 'compute_shader_support_get': True, 'hdr_support_get': True, 'max_batch_indices_get': -2147483648, 'max_batch_vertices_get': -2147483648, 'max_images_get': 128, 'max_texture_layers_get': 2048, 'max_texture_size_get': 16384, 'max_textures_frag_get': 128, 'max_textures_geom_get': 0, 'max_textures_get': 128, 'max_textures_vert_get': 128, 'max_uniforms_frag_get': 1024, 'max_uniforms_vert_get': 1024, 'max_varying_floats_get': 60, 'max_vertex_attribs_get': 31, 'shader_image_load_store_support_get': True}
- Timestamp: 2024-09-07 15:45:34.959567

Runtime:

- Undo: insert, insert, insert, insert, insert, insert, select, move after select, grab, grab
- Error Hash: 0559f37293298e827845c0e62d45afff

Trace:

- EXCEPTION (<class 'RuntimeError'>): Error: Could not write image: Read-only file system
- 
-     /Applications/Blender.app/Contents/Resources/4.2/scripts/modules/bpy/ops.py
- 000 0109:__call__() ret = _op_call(self.idname_py(), kw)
-     /Users/aphixe/Library/Application Support/Blender/4.2/extensions/user_default/retopoflow/retopoflow/rf/rf_ui_alert.py
- 001 0153:screenshot() bpy.ops.screen.screenshot(filepath=filepath)
-     .../common/ui_core_events.py
- 002 0069:<lambda>() callback = lambda e: old_callback()
- 003 0092:_fire_event() cb(details)
- 004 0098:_fire_event() raise e
- 005 0129:dispatch_event() self._fire_event(event, ui_event)
-     .../common/ui_document.py
- 006 0559:mousedown_exit() under_mouseclick.dispatch_event('on_mouseclick')
-     .../common/fsm.py
- 007 0169:wrapped() return fn(*args, **kwargs)

[vxlcoder]

thanks for the report, @aphixe. unfortunately the debug info you posted here is not related to polypen, but it's related to taking a screenshot. I can work on that issue, but please let us know if you run into the polypen issue again!