Typescript error only on OSX

Ionic Framework ionic-v3
1

Hi,

when start a project : ionic start tabs

ionic serve work on our UBUNTU and WINDOWS
On our OSX, we got a really wired error, you can see it on picture.

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Capture d’écran 2018-09-27 à 21.43.39.png2894×1734 371 KB

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Capture d’écran 2018-09-27 à 21.45.50.png968×564 45.7 KB

I spend many time for fix it without success. Any solution for us ?

Thanks.

Mickael