Assertion Failure: Project model unavailable

Problem Description

I can't test my game because it's showing "Assertion failure: Project model unavailable

Stack trace:

Error at assert2 (http://localhost:50000/preview_prelude.js:16:10)

at Runtime.loadProject (http://localhost:50000/preview.js:1144:3)

at XMLHttpRequest.xhr.onload (http://localhost:50000/preview.js:416:11)"

Then, it shows me "Javascript error! Uncaught Typeerror: Cannot read property 'project' null localhost/preview.js, line 1148 (col 25)". I have no clue on how to fix it.

Attach a Capx

drive.google.com/file/d/16AiLubXPUAikGKGBK8SfaWJf0bnrjuiM/view

Description of Capx

An adventure platformer

Steps to Reproduce Bug

• Step 1: Update to r259
• Step 2: Test game but fails

Observed Result

Assertion failure: Project model unavailable

Stack trace:

Error at assert2 (http://localhost:50000/preview_prelude.js:16:10)

at Runtime.loadProject (http://localhost:50000/preview.js:1144:3)

at XMLHttpRequest.xhr.onload (http://localhost:50000/preview.js:416:11)

Affected Browsers

• Chrome: Yes
• Internet Explorer: Yes

Operating System and Service Pack

Windows 10

Construct 2 Version ID

Construct 2 r259

It fails to load because the Spikes object animation frame 3 is a corrupt image. If you edit the frame to restore a valid image it works again. I'm afraid there's nothing else we can do unless you can provide the steps to reproduce how the image got corrupt in the first place.