第一次安装出现如下错误：
gyp verb check python checking for Python executable "python2" in the PATH
gyp verb `which` failed Error: not found: python2
gyp verb `which` failed at getNotFoundError (C:Program Files (x86)JenkinsjobsNdbSite-hot-fix-Manual-PreBuildworkspacesrcNdbSite.UI
ode_moduleswhichwhich.js:13:12)
gyp verb `which` failed at F (C:Program Files (x86)JenkinsjobsNdbSite-hot-fix-Manual-PreBuildworkspacesrcNdbSite.UI
ode_moduleswhichwhich.js:68:19)
gyp verb `which` failed at E (C:Program Files (x86)JenkinsjobsNdbSite-hot-fix-Manual-PreBuildworkspacesrcNdbSite.UI
ode_moduleswhichwhich.js:80:29)
gyp verb `which` failed at C:Program Files (x86)JenkinsjobsNdbSite-hot-fix-Manual-PreBuildworkspacesrcNdbSite.UI
ode_moduleswhichwhich.js:89:16
gyp verb `which` failed at C:Program Files (x86)JenkinsjobsNdbSite-hot-fix-Manual-PreBuildworkspacesrcNdbSite.UI
ode_modulesisexeindex.js:44:5
gyp verb `which` failed at C:Program Files (x86)JenkinsjobsNdbSite-hot-fix-Manual-PreBuildworkspacesrcNdbSite.UI
ode_modulesisexewindows.js:29:5
gyp verb `which` failed at FSReqWrap.oncomplete (fs.js:82:15)
gyp verb `which` failed python2 { [Error: not found: python2] code: 'ENOENT' }
gyp verb check python checking for Python executable "python" in the PATH
gyp verb `which` failed Error: not found: python
因为我电脑上安装的是Python 3.7，但是这个which命令竟然需要Python 2，于是去StackOver flow找到如下答案。
- 删除node_modules文件夹
- 运行 npm install --global windows-build-tools
- 运行 npm install
运行npm install --global windows-build-tools命令时又出现一个PowerShell没有管理员权限的错误，于是右键以管理员权限运行PowerShell，命令执行成功，Python2成功安装到C:Users est.windows-build-toolspython27。
再次运行npm install命令后，又出现之前一样的错误。
于是再删除node_modules目录，重新运行npm install。居然成功了！