ns migrate (to 8) failing at Android step

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 8.0.2
• Cross-platform modules:
• Android Runtime: 7.0.1
• iOS Runtime: 6.5.4
• XCode Version: 12.5.1
• Plugin(s): none

Describe the bug

spawn: npm "install" "--legacy-peer-deps" "tns-android@8.0.0" "--silent" "--dev" "--save-dev" "--save-exact"
Will send the following information to Google Analytics: {
  type: 'googleAnalyticsData',
  category: 'CLI',
  googleAnalyticsDataType: 'event',
  action: 'Performance',
  label: 'PackageManager__install',
  customDimensions: { cd2: 'Angular', cd9: 'false', cd5: 'CLI' },
  value: 10877
}
Error: Command npm failed with exit code 1
    at ChildProcess.<anonymous> (/usr/local/lib/node_modules/nativescript/lib/common/child-process.js:143:36)
    at ChildProcess.emit (events.js:315:20)
    at maybeClose (internal/child_process.js:1048:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:288:5)

To Reproduce

ns migrate --log trace

Expected behavior
Succesful migration

首先使用报告中的 CLI 和 runtime 版本重现 ns migrate --log trace。检查报告 npm 进程失败的 nativescript/lib/common/child-process.js，然后确定导致 Android 安装以代码 1 退出的原因；迁移成功完成即表示完成。