升级到umi3的时候,使用命令启动时报错不显示错误，请问如何去找错误

[BINAIMENG]

{ "@antv/g6": "^4.2.6", "@tinymce/tinymce-react": "^3.12.2", "@umijs/preset-react": "^1.8.4", "axios": "^0.18.0", "classnames": "2.2.6", "codemirror": "^5.54.0", "cron-parser": "^2.17.0", "echarts": "4.2.1", "eslint-plugin-react-hooks": "^4.2.0", "file": "^0.2.2", "gg-editor": "^3.1.3", "is-json": "^2.0.1", "jsrsasign": "^8.0.15", "lodash": "4.17.11", "md5": "^2.2.1", "moment": "^2.26.0", "nprogress": "^0.2.0", "numeral": "2.0.6", "prop-types": "^15.7.2", "qs": "6.6.0", "rc-texty": "^0.2.0", "react": "^16.8.0", "react-codemirror2": "^6.0.1", "react-document-title": "2.0.3", "react-dom": "^16.8.0", "react-fittext": "^1.0.0", "screenfull": "^5.0.2", "sortablejs": "^1.10.2", "system": "^2.0.1", "three": "^0.120.1", "uuid": "^8.3.1", "@types/codemirror": "0.0.77", "@types/jest": "^23.3.12", "@types/react": "^16.9.35", "@types/react-dom": "^16.9.8", "@types/react-test-renderer": "^16.9.2", "babel-eslint": "^9.0.0", "babel-jest": "^26.3.0", "babel-polyfill": "^6.26.0", "cross-env": "^5.2.0", "eslint": "^5.4.0", "eslint-config-umi": "^1.6.0", "eslint-plugin-flowtype": "^2.50.0", "eslint-plugin-import": "^2.20.2", "eslint-plugin-jsx-a11y": "^5.1.1", "eslint-plugin-react": "^7.20.0", "husky": "^0.14.3", "jest-canvas-mock": "^2.2.0", "jest-transform-stub": "^2.0.0", "js-cookie": "^2.2.0", "lint-staged": "^7.2.2", "mockjs": "^1.1.0", "path-to-regexp": "^3.2.0", "rc-queue-anim": "^1.8.5", "react-test-renderer": "^16.7.0", "regenerator-runtime": "^0.13.7", "tslint": "^5.20.1", "tslint-eslint-rules": "^5.4.0", "tslint-react": "^3.6.0", "umi": "^3.4.8" }

[xiaohuoni]

你提供的这个没有什么帮助，你可以使用 DEBUG=* umi dev 看看日志。找不到的话，提供一个可以复现的 repo