How to open an old C3P file?

Is there any possibility of opening a project produced in 2018 at Construct3? I need to make an edit and update this project and I am not able to open the file. Thanks for any help

Nice. I will give it a try. Thanks.

By the date of the file, it is February 2018. As I usually use the stable versions, I tried the R85 and R89 versions. The first version (R85) crashes the browser and the second version (R89) shows the same message as the most recent version

Construct projects should be backwards compatible all the way back to Construct 2 projects made in 2011. Even those should still successfully open in Construct 3.

If a project fails to open, press F12 and check for a more detailed error message in the browser console. Usually the problem is something like a broken third-party addon, or a version mismatch with a third-party addon. You might have to try to hunt down the specific versions of any third-party addons you were using in 2018, in case later updates to those addons broke your projects.

Thanks for replying Ashley

I will follow your instructions and I'll post the result here later

Hi Ashley

From what I understand the problem is related to the language. All lines start like this: Failed to find 'pt-BR' string plugins ...

I copied the log to a text file if you want to check

dropbox.com/s/esvkfnz7jcsymr5/log.rtf

The language problems don't matter - Construct will just switch to a fallback string.

The real problem is at the end:

Exception opening: Error: missing action id 'load-json'

This means the project is using an action that is missing in one of the addons it uses. As I said all official Construct content is fully backwards compatible, so I think my guess was right: you're using a third-party addon, and they either released an update that broke your project, or you installed the wrong version of the addon that does not have that action yet.

Ok. I will try to find out what it was and if I have another version. Thanks