L'app ouvre page blanche

Ok je vais regarder cela.
Pour le warning du translate je l’ai deja supprimé

bon j’ai fais sur 2.9.2 mais j’ai toujours

[app-scripts] no-unused-variable is deprecated. Since TypeScript 2.9. Please use the built-in compiler checks instead.

resultat fonctionne toujours pas sur mon smartphone.

Never upgrade TypeScript on Ionic projects past the version that is included on a newly generated scratch project, unless you are willing to be a tester. If you do do this, and run into any problems, please make sure they persist with the recommended Typescript version before reporting them.

ton project c’est un project Ionic v3 ou v4?

comment as-tu downgradé typescript?

C’est sur le projet V3.
J’ai fait npm install typescript@2.9.2

Ce que je ne comprends pas c’est que je n’ai jamais changé typescript

V3, il te faut downgradé typescript vers la version 2.4.2

concernant ton erreur: tu utilises lazy loading?

oui: qqch n’est pas correct dans LoginModule
non: supprimer LoginModule

au punaise avec 2.4.2 c’est encore pire

Refused to apply style from 'http://localhost:8100/build/main.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.
vendor.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)
main.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)
(index):1 Refused to apply style from 'http://localhost:8100/build/main.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.
vendor.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)
(index):1 Refused to execute script from 'http://localhost:8100/build/vendor.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
main.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)
(index):1 Refused to execute script from 'http://localhost:8100/build/main.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.
(index):1 Refused to apply style from 'http://localhost:8100/build/main.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.

it’s getting worse and worse, my app only has 5 pages,
I started another app with V4 I think I will recreate my app on V4
I do not use lazy loading

Ton app est open source? Si tu veux je jette rapide un coup d’oeil

for the moment there is not much so yes I can share.
how do we do?

you could send me the url to your Github or other repo