syntax of the command is incorrect (Windows)

[cam-m]

Run in powershell. All defaults selected, throws this:

syntax of the command is incorrect.

at ChildProcess.exithandler (node:child_process:402:12)
at ChildProcess.emit (node:events:513:28)
at maybeClose (node:internal/child_process:1100:16)
at Process.ChildProcess._handle.onexit (node:internal/child_process:304:5) {

code: 1, killed: false, signal: null, cmd: 'mkdir qmv-vs-language-server-ws/src', stdout: '', stderr: 'The syntax of the command is incorrect.\r\n'