deployer 部署程序时无法上传文件

windows环境下，Deployer无法上传文件
配置文件：

……
// 定义一个上传 .env 文件的任务
desc('Upload .env file');
task('env:upload', function() {
    run('cd {{release_path}} && build');
    // 将本地的 .env 文件上传到代码目录的 .env
    upload(__DIR__.'\.env', '{{release_path}}/.env');
});

// 定义一个后置钩子，在 deploy:shared 之后执行 env:upload 任务
after('deploy:shared', 'env:upload');
……

报错如下：

  [Symfony\Component\Process\Exception\ProcessFailedException]
  The command "rsync -azP -e 'ssh -A -i E:\WorkSpace\deployerkey' "E:\WorkSpace\Php\NextPair\.env" "deployer@XXXX:/var/www/next_pair/releases/1/.env"" failed.

  Exit Code: 1(General error)

  Working directory: E:\WorkSpace\Php\NextPair

  Output:
  ================

  Error Output:
  ================
  The source and destination cannot both be remote.
  rsync error: syntax or usage error (code 1) at main.c(1068) [receiver=2.6.9]

目前卡在

rsync -azP -e 'ssh -A -i E:\WorkSpace\deployerkey' "localhost:E:\WorkSpace\Php\NextPair\.env" "deployer@XXXX:/var/www/next_pair/releases/1/.env"

会报上述错误