Layout error, bad export, null reference

Problem Description

When I export the game, it does not work, and also if I go back to Construct and use the preview mode, it also does not work and an error appears

Attach a Capx

I can't because it is a professional project, so I don't know how to handle this part

Description of Capx

____ Concise description of what this CapX does ____

Steps to Reproduce Bug

• Everything works fine, the preview mode in all browsers works fine, everything cool
• Export the game to NW.js, it exports it right
• Open Win64 version and the screen stands black
• Go back to Cosntruct to the First layout
• Open the layout in preview mode
• The error appears

Observed Result

This error appears:

Expected Result

I expect the game works fine

Affected Browsers

• Chrome:YES
• FireFox: YES
• Internet Explorer: YES

Operating System and Service Pack

windows 10 Pro 64 bits

Construct 2 Version ID

r239 64 bits

Edit:

Seems to be something relative to container objects that are already placed in the layout. I dont know more. What I did is create a new layout empty, and from there load the must "first" layout of the game. It is just a workaround, not a solution.

Closing, nothing we can do without a .capx. The bug report guidelines describe what to do to make sure you can share a .capx, please read them.

and there is a way to show a capx without showing it to all the forum???

Yes. The bug report guidelines describe what to do.