Can't start cesium's localwebserver

Excuse me for the question.

I would like to know how to build a localwebserver.

「node server.cjs」
Now when I start the web server I get the following error

node:internal/modules/cjs/loader:936
throw err;
^

Error: Cannot find module ‘C:\cesium\server.cjs’
[90m at Function.Module._resolveFilename (node:internal/modules/cjs/loader:933:15)[39m
[90m at Function.Module._load (node:internal/modules/cjs/loader:778:27)[39m
[90m at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:77:12)[39m
[90m at node:internal/main/run_main_module:17:47[39m {
code: [32m’MODULE_NOT_FOUND’[39m,
requireStack:
}

machne
OS:windows10

node ver: 16.15

cesium ver :1.100

Thank you.