@types not working with 3.0.2

[ldrick]

I encountered a couple of Errors saying things like:
ERROR in ./[...]/SimpleDateFormat.ts [tsl] ERROR in /home/[...]/SimpleDateFormat.ts(1,52) TS7016: Could not find a declaration file for module 'date-fns'. '/home/[...]/node_modules/date-fns/esm/index.js' implicitly has an 'any' type. Try npm install @types/date-fnsif it exists or add a new declaration (.d.ts) file containingdeclare module 'date-fns';
These @types are all installed and tsc is working smooth with them. Until today I used ts-loader@2.3.7 and it worked. If you need further information, please come back to me, thanks.

[johnnyreilly]

@ldrick I'm guessing this is going to be the same as #655. Essentially I think you can fix this by either supplying ts-loader with the option entryFileCannotBeJs: true OR setting allowJs: false in your tsconfig.json.

I believe there is a bug in ts-loader around the allowJs functionality which is worked around with this flag. Can I ask a favour? Assuming that my suggestion does resolve your issue would you be able to supply me with a minimal repro repo that illustrates this issue? I'd love to fix this properly in ts-loader so the workaround isn't necessary. To do that I need a way to reliably reproduce the issue. You can help!

[ldrick]

@johnnyreilly Thanks, allowJs is truthy needed in my project. But entryFileCannotBeJs: true works.
I will come back within next 2 hours having a reproducable repo. (I think of running JQuery with its types)

[johnnyreilly]

Thanks @ldrick - I appreciate it!

[ldrick]

@johnnyreilly I got through some strange things, but could reproduce exact my error like this:
ts-loader-test

I know types are not installed for date-fns, but they are not required.
It comes down to tsconfig --> moduleResolution: "node" I believe. Because activating this one in this new project, tsl failed.

[johnnyreilly]

Thanks @ldrick - I'll take a look!

[johnnyreilly]

Hopefully this will be fixed with #658 (testing now)

[johnnyreilly]

Fix released with 3.0.3

[dawidzq]

Hey,

I'm trying to download 3.0.3 via npm and I'm getting "No matching version found for ts-loader@3.0.3". Has it officially been published yet?

Thank you!

[johnnyreilly]

Yup - shipped. Other people have reported it working so downloading must be happening...

[johnnyreilly]

See https://www.npmjs.com/package/ts-loader

[dawidzq]

It appears to be a caching issue on my end.

[johnnyreilly]

Well cache invalidation is famously hard 😉

[ldrick]

Just want to confirm, that everything works smooth on my side since 3.0.3 and I removed the entryFileCannotBeJs: true again.
Thanks @johnnyreilly

[johnnyreilly]

Brilliant!