webpack构建错误TypeError:将循环结构转换为JSON
我在使用Webpack构建和运行dev服务器时遇到错误。我使用Vue.js并使用vue-cli生成项目。为了测试,我使用Jest和npm test
运行没有问题。
如果我运行npm run build
我得到此错误输出:
ERROR in TypeError: Converting circular structure to JSON
- JSON.stringify
- index.js:281 HtmlWebpackPlugin.postProcessHtml
[corlex-photos-theme]/[html-webpack-plugin]/index.js:281:74
- index.js:154
[corlex-photos-theme]/[html-webpack-plugin]/index.js:154:25
- util.js:16 tryCatcher
[corlex-photos-theme]/[bluebird]/js/release/util.js:16:23
- promise.js:512 Promise._settlePromiseFromHandler
[corlex-photos-theme]/[bluebird]/js/release/promise.js:512:31
- promise.js:569 Promise._settlePromise
[corlex-photos-theme]/[bluebird]/js/release/promise.js:569:18
- promise.js:614 Promise._settlePromise0
[corlex-photos-theme]/[bluebird]/js/release/promise.js:614:10
- promise.js:693 Promise._settlePromises
[corlex-photos-theme]/[bluebird]/js/release/promise.js:693:18
- async.js:133 Async._drainQueue
[corlex-photos-theme]/[bluebird]/js/release/async.js:133:16
- async.js:143 Async._drainQueues
[corlex-photos-theme]/[bluebird]/js/release/async.js:143:10
- async.js:17 Immediate.Async.drainQueues
[corlex-photos-theme]/[bluebird]/js/release/async.js:17:14
回答如下:
好的,解决方案是删除webpack.dev.conf.js和webpack.prod.conf.js文件中的HtmlWebpackPlugin的template
选项。
现在文件看起来像这样:
webpack.dev.conf.js:
'use strict'
const utils = require('./utils')
const webpack = require('webpack')
const config = require('../config')
const merge = require('webpack-merge')
const baseWebpackConfig = require('./webpack.base.conf')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const FriendlyErrorsPlugin = require('friendly-errors-webpack-plugin')
const portfinder = require('portfinder')
const HOST = process.env.HOST
const PORT = process.env.PORT && Number(process.env.PORT)
const devWebpackConfig = merge(baseWebpackConfig, {
module: {
rules: utils.styleLoaders({sourceMap: config.dev.cssSourceMap, usePostCSS: true})
},
// cheap-module-eval-source-map is faster for development
devtool: config.dev.devtool,
// these devServer options should be customized in /config/index.js
devServer: {
clientLogLevel: 'warning',
historyApiFallback: true,
hot: true,
compress: true,
host: HOST || config.dev.host,
port: PORT || config.dev.port,
open: config.dev.autoOpenBrowser,
overlay: config.dev.errorOverlay
? {warnings: false, errors: true}
: false,
publicPath: config.dev.assetsPublicPath,
proxy: config.dev.proxyTable,
quiet: true, // necessary for FriendlyErrorsPlugin
watchOptions: {
poll: config.dev.poll
}
},
plugins: [
new webpack.DefinePlugin({
'process.env': require('../config/dev.env')
}),
new webpack.HotModuleReplacementPlugin(),
new webpack.NamedModulesPlugin(), // HMR shows correct file names in console on update.
new webpack.NoEmitOnErrorsPlugin(),
// https://github/ampedandwired/html-webpack-plugin
new HtmlWebpackPlugin({
filename: 'index.html',
// HERE WAS TEMPLATE OPTION
inject: true
})
]
})
module.exports = new Promise((resolve, reject) => {
portfinder.basePort = process.env.PORT || config.dev.port
portfinder.getPort((err, port) => {
if (err) {
reject(err)
} else {
// publish the new Port, necessary for e2e tests
process.env.PORT = port
// add port to devServer config
devWebpackConfig.devServer.port = port
// Add FriendlyErrorsPlugin
devWebpackConfig.plugins.push(new FriendlyErrorsPlugin({
compilationSuccessInfo: {
messages: [`Your application is running here: http://${devWebpackConfig.devServer.host}:${port}`]
},
onErrors: config.dev.notifyOnErrors
? utils.createNotifierCallback()
: undefined
}))
resolve(devWebpackConfig)
}
})
})
webpack构建错误TypeError:将循环结构转换为JSON
我在使用Webpack构建和运行dev服务器时遇到错误。我使用Vue.js并使用vue-cli生成项目。为了测试,我使用Jest和npm test
运行没有问题。
如果我运行npm run build
我得到此错误输出:
ERROR in TypeError: Converting circular structure to JSON
- JSON.stringify
- index.js:281 HtmlWebpackPlugin.postProcessHtml
[corlex-photos-theme]/[html-webpack-plugin]/index.js:281:74
- index.js:154
[corlex-photos-theme]/[html-webpack-plugin]/index.js:154:25
- util.js:16 tryCatcher
[corlex-photos-theme]/[bluebird]/js/release/util.js:16:23
- promise.js:512 Promise._settlePromiseFromHandler
[corlex-photos-theme]/[bluebird]/js/release/promise.js:512:31
- promise.js:569 Promise._settlePromise
[corlex-photos-theme]/[bluebird]/js/release/promise.js:569:18
- promise.js:614 Promise._settlePromise0
[corlex-photos-theme]/[bluebird]/js/release/promise.js:614:10
- promise.js:693 Promise._settlePromises
[corlex-photos-theme]/[bluebird]/js/release/promise.js:693:18
- async.js:133 Async._drainQueue
[corlex-photos-theme]/[bluebird]/js/release/async.js:133:16
- async.js:143 Async._drainQueues
[corlex-photos-theme]/[bluebird]/js/release/async.js:143:10
- async.js:17 Immediate.Async.drainQueues
[corlex-photos-theme]/[bluebird]/js/release/async.js:17:14
回答如下:
好的,解决方案是删除webpack.dev.conf.js和webpack.prod.conf.js文件中的HtmlWebpackPlugin的template
选项。
现在文件看起来像这样:
webpack.dev.conf.js:
'use strict'
const utils = require('./utils')
const webpack = require('webpack')
const config = require('../config')
const merge = require('webpack-merge')
const baseWebpackConfig = require('./webpack.base.conf')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const FriendlyErrorsPlugin = require('friendly-errors-webpack-plugin')
const portfinder = require('portfinder')
const HOST = process.env.HOST
const PORT = process.env.PORT && Number(process.env.PORT)
const devWebpackConfig = merge(baseWebpackConfig, {
module: {
rules: utils.styleLoaders({sourceMap: config.dev.cssSourceMap, usePostCSS: true})
},
// cheap-module-eval-source-map is faster for development
devtool: config.dev.devtool,
// these devServer options should be customized in /config/index.js
devServer: {
clientLogLevel: 'warning',
historyApiFallback: true,
hot: true,
compress: true,
host: HOST || config.dev.host,
port: PORT || config.dev.port,
open: config.dev.autoOpenBrowser,
overlay: config.dev.errorOverlay
? {warnings: false, errors: true}
: false,
publicPath: config.dev.assetsPublicPath,
proxy: config.dev.proxyTable,
quiet: true, // necessary for FriendlyErrorsPlugin
watchOptions: {
poll: config.dev.poll
}
},
plugins: [
new webpack.DefinePlugin({
'process.env': require('../config/dev.env')
}),
new webpack.HotModuleReplacementPlugin(),
new webpack.NamedModulesPlugin(), // HMR shows correct file names in console on update.
new webpack.NoEmitOnErrorsPlugin(),
// https://github/ampedandwired/html-webpack-plugin
new HtmlWebpackPlugin({
filename: 'index.html',
// HERE WAS TEMPLATE OPTION
inject: true
})
]
})
module.exports = new Promise((resolve, reject) => {
portfinder.basePort = process.env.PORT || config.dev.port
portfinder.getPort((err, port) => {
if (err) {
reject(err)
} else {
// publish the new Port, necessary for e2e tests
process.env.PORT = port
// add port to devServer config
devWebpackConfig.devServer.port = port
// Add FriendlyErrorsPlugin
devWebpackConfig.plugins.push(new FriendlyErrorsPlugin({
compilationSuccessInfo: {
messages: [`Your application is running here: http://${devWebpackConfig.devServer.host}:${port}`]
},
onErrors: config.dev.notifyOnErrors
? utils.createNotifierCallback()
: undefined
}))
resolve(devWebpackConfig)
}
})
})
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