Disable npm cache
<p>Some time ago I had trouble with the npm cache on our build machines. From time to time we had to do <code>npm cache clean</code> by hand, and that solved various issues that we are still not certain about what caused them. So after a time we included <code>npm cache clean</code> in all our build scripts, since then we did not have mysterious problems with <code>npm i</code>, however now parallel builds obviously affect each other.</p>

<p>For me the best solution seems to be completely turn off the npm caching mechanism, but I couldn't find out how to do that.</p>