care to share your package.json with your local plugin so everyone can see how to set it up with Strapi V4.
EDIT here is answer, add this in your main strapi package.json
“workspaces”: [
“./src/plugins/local-plugin-1”,
“./src/plugins/local-plugin-2”,
“./src/plugins/local-plugin-3”
],
EDIT2: your node version need to be 16 or higher for it to work.
"engine":{
"node":">=16.x.x <=18.x.x",
"npm":>="6.x.x"
}