I wrote all the details on stackechange, but I think i'd have a better chance here. This is what I wrote:
"I tried to preview my game, but then I got an error. I reloaded Construct, and tried to go to my project, but this error appeared. Anybody know what to do?
I don't know how to get into the "project texture folder", if that's what I need to do."
Also, heres the link to my stackexchange post: https://gamedev.stackexchange.com/quest ... onstruct-2
I don't understand why on Earth you would post to StackExchange for a C2 error(!?)
However, if your project is a .capx, then use Winzip, 7zip, Winrar etc to unzip to a new folder. This should allow you to see the Project folders. If it is already saved as a Project rather than a .capx, skip the unzipping part.
The error says the 'TiledBackground.png' is missing from the 'Textures' folder, so just add any graphic to the 'Textures' folder and rename it as 'TiledBackground.png'.
That should at least allow you to open your project.
If not, then consider posting the project here for us to check for you.