Error: No default engine was specified and no extension was provided. about caterpillar

I am facing the same issue.

[MacOS]

Dear Developers,

thank you for your work.

I'm currently involved in a project from my university where I have to use your software. Unfortunately, my team and I are getting the error from above. At this point, we run out of ideas how to fix this problem by our one. Can please give us a hint?

Thank you in advance!

[orlenyslp]

This seems to be a compatibility problem with the libraries used by the engine, or some step skipped on the setup of the application. The causes may vary, so I need more information about the steps performed.

[Ferandal]

I used version 2.0
To fix the issue there you have to replace in ./out/app.js on line 30

res.render('error', {

with

res.json({

This way express is not trying to use a view engine.
I bet there is something similar for version1.0

[ZeshunShi]

Hi, I followed @Ferandal method to change the res.render to res.json. However, I got another issue {"message":"Not Found","error":{"status":404}}. Do you have any clue for that?

[nicedinner2]

Same issue happens to me. Any solution find for now? @ZeshunShi @MacOS

[Saptarshi-Dey]

It just doesn't work does it?

[MacOS]

Actually, we managed to get it to work. Unfortunately, we did not write it down.

[lupinheiro]

Actually, we managed to get it to work. Unfortunately, we did not write it down.

Can you please try to remember ? i need to use Caterpillar for a University Project and i cannot get past this problem. @MacOS