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As instructed within the Setting up your development environment guidance material. https://docs.microsoft.com/en-us/sharepoint/dev/spfx/set-up-your-development-environment

I've installed yeoman:

npm install yo --global

I've reached the last step, to install the sharepoint generator:

npm install @microsoft/generator-sharepoint --global

I'm getting an error reported in the terminal.

npm ERR! Cannot read property 'pickAlgorithm' of null

1
  • Can you open command prompt and run npm list -g --depth=0? Can you share the output, please? Also, what version of node.js are you using? Oct 10 '21 at 23:54
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During the installation of another package, I encountered the same problem, but the following command resolved it for me

npm cache clear --force
0

Downgrade your NPM version:

npm install -g npm@7.24.2 

This has worked for me.

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