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

[TBP-BE]

Hi,
when i run caterpillar-core i get this error:

Error: No default engine was specified and no extension was provided.
at new View (C:\Users\Lenovo\Caterpillar-master\v1.0\caterpillar-core\node_modules\express\lib\view.js:62:11)
at Function.render (C:\Users\Lenovo\Caterpillar-master\v1.0\caterpillar-core\node_modules\express\lib\application.js:569:12)
at ServerResponse.render (C:\Users\Lenovo\Caterpillar-master\v1.0\caterpillar-core\node_modules\express\lib\response.js:961:7)
at C:\Users\Lenovo\Caterpillar-master\v1.0\caterpillar-core\out\app.js:43:9
at Layer.handle_error (C:\Users\Lenovo\Caterpillar-master\v1.0\caterpillar-core\node_modules\express\lib\router\layer.js:71:5)
at trim_prefix (C:\Users\Lenovo\Caterpillar-master\v1.0\caterpillar-core\node_modules\express\lib\router\index.js:310:13)
at C:\Users\Lenovo\Caterpillar-master\v1.0\caterpillar-core\node_modules\express\lib\router\index.js:280:7
at Function.process_params (C:\Users\Lenovo\Caterpillar-master\v1.0\caterpillar-core\node_modules\express\lib\router\index.js:330:12)
at next (C:\Users\Lenovo\Caterpillar-master\v1.0\caterpillar-core\node_modules\express\lib\router\index.js:271:10)
at Layer.handle_error (C:\Users\Lenovo\Caterpillar-master\v1.0\caterpillar-core\node_modules\express\lib\router\layer.js:73:5)

Thanks for your help.

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

[stoneshi192]

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