在buildspec文件中，将choco命令替换为Chocolatey命令即可解决问题。示例代码如下：

version: 0.2

phases:
  install:
    runtime-versions:
      powershell: 7.0.0
  pre_build:
    commands:
      - Set-ExecutionPolicy Bypass -Scope Process -Force;
      - iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))
      - refreshenv
  build:
    commands:
      - choco install packagename

改成：

version: 0.2

phases:
  install:
    runtime-versions:
      powershell: 7.0.0
  pre_build:
    commands:
      - Set-ExecutionPolicy Bypass -Scope Process -Force;
      - iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))
      - refreshenv
  build:
    commands:
      - cinst packagename

这样，在buildspec文件中使用cinst代替choco命令即可顺利执行Chocolatey操作。