This project showcases a possible bug in npm v7.

The problem is that npm v7 does not install linked local packages dependencies. To see the behaviour of npm v6 vs v7, this repository has 2 branches: package-lock-v1 and package-lock-v2.

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To reproduce:

• With node-14 and npm-6 installed, checkout branch package-lock-v1, go to ./app and run npm install. The produced node_modules folder structure is:

node_modules
	.bin
	my-local-pkg
		node_modules
			typescript
	prettier

• With node-15 and npm-7 installed, checkout branch package-lock-v2, go to ./app and run npm install. The produced node_modules folder structure is:

node_modules
	.bin
	my-local-pkg
	prettier

Compare the two outputs, npm v7 does not install my-local-pkg dependencies, there is no node_modules folder generated in the linked ../my-local-pkg.