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Ionic Framework ionic-v3
#25

Does not work for me :frowning:

I had this problem earlier this year and fixed it, but I can’t remember how…

#26

i used yarn add typescript
its workfor me

#27

There are two three things that worked for me

  1. npm install
  2. npm install @ionic/app-scripts@latest --save-dev
  3. npm install @ionic/lab
  4. ionic serve

Problem solved!!!