Crash when closing a project

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Post » Tue Mar 28, 2017 8:07 pm

I was closing two of my older projects down (Made in C2) so that I could clear the workflow up a bit. When closing the 2nd one C3 crashed and popped up with the info below:

"Error report information
Type: unhandled rejection
Reason: TypeError: Cannot read property 'ǃjL' of undefined
Construct 3 version: r12
URL: https://editor.construct.net/
Date: Tue Mar 28 2017 21:04:20 GMT+0100 (GMT Summer Time)
Uptime: 752 s

Platform information
Browser: Chrome
Browser version: 57.0.2987.110
Browser engine: Blink
Browser architecture: 64-bit
Context: browser
Operating system: Windows
Operating system version: 10
Operating system architecture: 64-bit
Device type: desktop
Device pixel ratio: 2
Logical CPU cores: 4
User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.110 Safari/537.36

WebGL information
Version string: WebGL 2.0 (OpenGL ES 3.0 Chromium)
Numeric version: 2
Supports NPOT textures: yes
Vendor: Google Inc.
Renderer: ANGLE (Intel(R) HD Graphics 520 Direct3D11 vs_5_0 ps_5_0)
Major performance caveat: no
Maximum texture size: 16384
Point size range: 1 to 1024
Extensions: EXT_color_buffer_float, EXT_disjoint_timer_query_webgl2, EXT_texture_filter_anisotropic, OES_texture_float_linear, WEBGL_compressed_texture_s3tc, WEBGL_debug_renderer_info, WEBGL_debug_shaders, WEBGL_lose_context"
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Post » Wed Mar 29, 2017 5:24 pm

Looks related to fade state in project bar. @Nepeo
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Post » Wed Mar 29, 2017 5:32 pm

Well I went through and changed the only place this could potentially happen, but I'm not sure how it could happen. Would require a project becoming active without having entries in the project bar...
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Post » Wed Mar 29, 2017 6:00 pm

@Mayfly - can you provide steps to reproduce?
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Post » Thu Mar 30, 2017 7:17 pm

Hi @Ashley @Nepeo

I opened two projects from my desktop and simple right clicked and closed the projects in the right hand side of the bar so that I could open a new project without cluttering the screen.

The first project closed no problem. When clicking close on the 2nd the crash happened.

I am running C3 on chrome, surface pro 4 - Windows 10.

I am afraid I cannot remember the project files I used and nothing shows up in 'recent' projects to help find them.
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Post » Fri Mar 31, 2017 11:02 am

I haven't had much luck reproducing this, even though the reproduction case seems simple enough.

As I said before I've added some extra defence to the code which I believe is causing the crash, so we shouldn't see it anymore. However, the only explanation I can think of is that this method was being called with a project becoming active AFTER it's entry in the project pane had been deleted. If that's the case we may, or may not, see a different crash appear related to that at somepoint down the line.

Going to consider this closed for now, if the bug reappears then I'll take another look.
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