if upgrading, first delete the full "node" dir

[jcompagner]

when i did go from Node 16.2 to 1.6.6 it did do the update to that version (this is with npm just included, not an extra npm install)

but then weird npm-cli errors came up when i then really just first delete the "node" dir and let the plugin install node again everything was fine

if i look into:

https://github.com/eirslett/frontend-maven-plugin/blob/master/frontend-plugin-core/src/main/java/com/github/eirslett/maven/plugins/frontend/lib/NodeInstaller.java

i also don't really see a full delete first..

NpmInstaller i do see that that it first does delete stuff. But not when npm is provided by node i think it is this code:

https://github.com/eirslett/frontend-maven-plugin/blob/master/frontend-plugin-core/src/main/java/com/github/eirslett/maven/plugins/frontend/lib/NodeInstaller.java#L189

are we needing there 1 line of code that deletes first if it is there the full target dir?

[MonsieurBon]

I can confirm that upgrading from 14.17.0 to 16.13.1 fails when running npm install. Manually removing the node folder solves the problem. The installed npm version (8.1.2) is the same for both node versions.