mongoose与mongodb 的版本兼容性表格

MongoDB Server 2.4.x: mongoose ^3.8 or 4.x
MongoDB Server 2.6.x: mongoose ^3.8.8 or 4.x
MongoDB Server 3.0.x: mongoose ^3.8.22, 4.x, or 5.x
MongoDB Server 3.2.x: mongoose ^4.3.0 or 5.x
MongoDB Server 3.4.x: mongoose ^4.7.3 or 5.x
MongoDB Server 3.6.x: mongoose 5.x
MongoDB Server 4.0.x: mongoose ^5.2.0

实测:
mondodb2.4 需要 mongoose 4.0.8