프로그램 설치가 되어있는 것 같은데 왼쪽 sparta-study폴더 맨 밑에 yarn이 뜨지 않고,

expo start를 입력한 후에 yarn과 npm 설치가 안되어있는지 물어보는 에러가 떠요ㅠㅠ

버전 확인을 했을 때 두번째 사진처럼 나왔는데 다음으로는 어떻게 하면 될까요..?

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작성한 코드 및 에러 메세지

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PS C:\Users\dlcod\Desktop\sparta-study> expo init sparta-myhoneytip-yeon


Migrate to using:
› npx create-expo-app --template


√ Choose a template: » blank               a minimal app as clean as an empty canvas
√ Downloaded template.
� Using Yarn to install packages. Pass --npm to use npm instead.
× Something went wrong installing JavaScript dependencies. Check your yarn logs. Continuing to initialize the app.  


PS C:\Users\dlcod\Desktop\sparta-study\sparta-myhoneytip-yPS C:\Users\dlcod\Desktop\sparta-study\sparta-myhoneytip-yPS C:\Users\dlcod\Desktop\sparta-study> yarn version check
PS C:\Users\dlcod\Desktop\sparta-study> cd sparta-myhoneytip-yeon
PS C:\Users\dlcod\Desktop\sparta-study\sparta-myhoneytip-yeon> expo start
Starting project at C:\Users\dlcod\Desktop\sparta-study\sparta-myhoneytip-yeon
Unable to find expo in this project - have you run yarn / npm install yet?
PS C:\Users\dlcod\Desktop\sparta-study\sparta-myhoneytip-yeon>