random inability to replace files in node_modules?

[tony-kerz]

i am executing power-shell commands like this in my team-city build step:

remove-item \\my-dev-st-app1\Applications\my-api\node_modules -force -recurse
copy-item %system.teamcity.build.checkoutDir%\node_modules -destination \\my-dev-st-app1\Applications\my-api -force -recurse

but i am getting the following types of issues on a seemingly random set of files:

any guidance appreciated!

thx,
tony.

[RyanHirsch]

We generally have to stop the app pool before copying files.