babel-coreが読み込めないらしい
Error: Cannot find module '@babel/core' babel-loader@8 requires Babel 7.x (the package '@babel/core'). If you'd like to use Babel 6.x ('babel-core'), you should install 'babel-loader@7'.
yarn upgrade babel-core
こっちじゃダメだった
yarn add @babel/core --dev
こっちでいけた あかんやろ、開発以外にも反映せな
yarn add @babel/core
Move us to the @babel namespace by switching to using “scoped” packages (details). This helps differentiate official packages, so babel-core becomes @babel/core (and no squatting)
babel-coreから@babel/core に変わったらしい ので消した
yarn remove babel-core
.babelrcも変更
"plugins": [ "transform-runtime", - "syntax-dynamic-import", - "transform-object-rest-spread", - ["transform-class-properties", { "spec": true }] + "@babel/syntax-dynamic-import", + "@babel/plugin-proposal-object-rest-spread", + "@babel/plugin-proposal-class-properties" ]
新しいのに変更
Module build failed: TypeError: this.setDynamic is not a function · Issue #560 · babel/babel-loader · GitHub まだエラーが出るので修正
"plugins": [ - "transform-runtime", + "@babel/plugin-transform-runtime",
yarn add @babel/plugin-transform-runtime --dev
yarn add @babel/plugin-transform-runtime
こっちもね インストール 続く