vue版本： 3.0.11
element-plus版本：1.0.2-beta.44
本地node版本：14.18.0
本地npm版本：6.14.15
控制台报错：
按照网上要求升级vue到最新版本3.2.11之后路由跳转又不行了，而且系统里面所有的下拉框都失效了，很崩溃啊，希望各位能帮我看看，号号脉。
Uncaught (in promise) TypeError: Cannot read properties of null (reading 'exposed') runtime-core.esm-bundler.js?5c40:6789
Uncaught (in promise) TypeError: Cannot read properties of null (reading 'subTree')
package.json:
"dependencies": {
"axios": "^0.21.1",
"clipboard": "^2.0.8",
"codemirror": "^5.61.1",
"core-js": "^3.6.5",
"driver.js": "^0.9.8",
"dropzone": "^5.9.2",
"echarts": "^5.1.1",
"element-plus": "1.0.2-beta.44",
"file-saver": "^2.0.5",
"fuse.js": "^6.4.6",
"html2canvas": "^1.3.2",
"jquery": "^3.6.0",
"js-cookie": "^2.2.1",
"jsonlint": "^1.6.3",
"jspdf": "^2.3.1",
"jszip": "^3.6.0",
"lodash": "^4.17.21",
"mammoth": "^1.4.17",
"mitt": "^3.0.0",
"moment": "^2.29.1",
"normalize.css": "7.0.0",
"nprogress": "^0.2.0",
"path-to-regexp": "^6.2.0",
"postcss-px2rem": "^0.3.0",
"print-js": "^1.6.0",
"screenfull": "^5.1.0",
"script-loader": "^0.7.2",
"sortablejs": "^1.14.0",
"vue": "3.0.11",
"vue-class-component": "^7.2.6",
"vue-count-to": "^1.0.13",
"vue-pdf": "^4.3.0",
"vue-print-nb": "^1.7.4",
"vue-router": "^4.0.0-0",
"vue-splitpane": "^1.0.6",
"vue3-print-nb": "^0.1.4",
"vuedraggable": "^2.24.3",
"vuex": "^4.0.0-0",
"xlsx": "^0.17.0"
},
"devDependencies": {
"@vue/cli-plugin-babel": "~4.5.0",
"@vue/cli-plugin-e2e-cypress": "~4.5.0",
"@vue/cli-plugin-eslint": "~4.5.0",
"@vue/cli-plugin-router": "~4.5.0",
"@vue/cli-plugin-unit-mocha": "~4.5.0",
"@vue/cli-plugin-vuex": "~4.5.0",
"@vue/cli-service": "~4.5.0",
"@vue/compiler-sfc": "^3.0.0",
"@vue/eslint-config-standard": "^5.1.2",
"@vue/test-utils": "^2.0.0-0",
"autoprefixer": "9.5.1",
"babel-eslint": "^10.1.0",
"babel-jest": "^27.0.1",
"babel-plugin-dynamic-import-node": "^2.3.3",
"chai": "^4.1.2",
"chalk": "^4.1.1",
"chokidar": "^3.5.1",
"connect": "^3.7.0",
"eslint": "^6.7.2",
"eslint-plugin-import": "^2.20.2",
"eslint-plugin-node": "^11.1.0",
"eslint-plugin-promise": "^4.2.1",
"eslint-plugin-standard": "^4.0.0",
"eslint-plugin-vue": "^7.0.0",
"html-webpack-plugin": "^5.3.1",
"husky": "^6.0.0",
"lint-staged": "^11.0.0",
"mockjs": "^1.1.0",
"plop": "^2.7.4",
"runjs": "^4.4.2",
"sass": "1.26.2",
"sass-loader": "8.0.2",
"script-ext-html-webpack-plugin": "^2.1.5",
"serve-static": "^1.14.1",
"svg-sprite-loader": "^6.0.6",
"svgo": "^2.3.0",
"vue-printjs": "^1.0.0",
"vue-template-compiler": "^2.6.12"
},
