I am trying to run my first SPFX as mentioned on this link @ https://docs.microsoft.com/en-us/sharepoint/dev/spfx/extensions/get-started/build-a-hello-world-extension .. but when i run yo @microsoft/sharepoint i got this error:-

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so i run this command install -g yo gulp but i got this error:-


I would try the following

  • run your console as an administrator
  • run npm uninstall -g gulp
  • run npm install -g yo
  • run npm install @microsoft/generator-sharepoint -g

then try:

  • create a new folder
  • navigate to a folder
  • run yo
  • follow generator's instructions
  • when you are done, run npm install -g gulp

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