使用node.js中fs模块的copyFileSync方法复制文件报错“operation not permitted, copyfile ‘G:\test.txt‘ -＞ ‘G:\Trash‘“

异常

Error: EPERM: operation not permitted, copyfile 'G:\test.txt' -> 'G:\Trash'
?[90m    at Object.copyFileSync (node:fs:2800:3)?[39m
    at Object.<anonymous> (D:\NodeJs\node-demo\trash.js:19:29)
?[90m    at Module._compile (node:internal/modules/cjs/loader:1097:14)?[39m
?[90m    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1149:10)?[39m
?[90m    at Module.load (node:internal/modules/cjs/loader:975:32)?[39m
?[90m    at Function.Module._load (node:internal/modules/cjs/loader:822:12)?[39m
?[90m    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)?[39m
?[90m    at node:internal/main/run_main_module:17:47?[39m {
    
    
  errno: ?[33m-4048?[39m,
  syscall: ?[32m'copyfile'?[39m,
  code: ?[32m'EPERM'?[39m,
  path: ?[32m'G:\\test.txt'?[39m,
  dest: ?[32m'G:\\Trash'?[39m
}

Node.js v17.1.0

错误代码

var fs = require('fs');
fs.copyFileSync('G:\test.txt', 'G:\Trash');

原因

我以为这个方法复制文件是复制到指定目录下，所以第二个参数写了一个目录，导致报错。

解决

第二个参数改为要复制的文件路径。

正确代码

var fs = require('fs');
fs.copyFileSync('G:\test.txt', 'G:\Trash\test.txt');