这是一个代码框： https://codesandbox.io/s/greensock-and-scrollmagic-with-react-gmidc 在这里我将React与GSAP和ScrollMagic一起使用。但是，当我在本地主机上运行代码时，出现错误消息：
animation.gsap.js:32 Uncaught Error: Cannot find module 'ScrollMagic'
at webpackMissingModule (animation.gsap.js:32)
at animation.gsap.js:32
at Object../node_modules/scrollmagic/scrollmagic/uncompressed/plugins/animation.gsap.js (animation.gsap.js:43)
at __webpack_require__ (bootstrap:785)
at fn (bootstrap:150)
at Module../src/index.js (import-fonts.css?480e:37)
at __webpack_require__ (bootstrap:785)
at fn (bootstrap:150)
at Object.0 (typography.css?5564:37)
at __webpack_require__ (bootstrap:785)
at checkDeferredModules (bootstrap:45)
at Array.webpackJsonpCallback [as push] (bootstrap:32)
at main.chunk.js:1
任何帮助将不胜感激