Cannot execute the npm installations

Dear Teacher, I cannot install by npm as attached. How could I fix this error?

Hi @Zhang_MR
Kindly mention the link to the course and a lesson in which you need npm. Secondly, it seems that you are trying to install the npm on your local machine.

Sure. and I installed it on local machine succesfully after relaunch the PS.

@Zhang_MR, good to hear that you have successfully installed it.