Reactjs &引用;只有ReactOwner才能有refs“;尽管运行了一个react副本并且没有损坏的引用
我老了Reactjs &引用;只有ReactOwner才能有refs“;尽管运行了一个react副本并且没有损坏的引用,reactjs,npm,webpack,Reactjs,Npm,Webpack,我老了 invariant.js:44未捕获错误:addComponentAsRefTo(…):只有ReactOwner可以有引用。您可能正在向未在组件的render方法中创建的组件添加引用,或者已加载多个副本 参考绝对不是问题所在(它们在渲染方法中,移除后问题仍然存在)。我也没有react的多个副本-在node_模块中没有一个额外的副本,npm ls react返回一个实例,我没有安装react插件。我正在使用webpack 在webpack配置中添加别名没有帮助,重新安装依赖项没有帮助,从
invariant.js:44未捕获错误:addComponentAsRefTo(…):只有ReactOwner可以有引用。您可能正在向未在组件的render
方法中创建的组件添加引用,或者已加载多个副本
参考绝对不是问题所在(它们在渲染方法中,移除后问题仍然存在)。我也没有react的多个副本-在node_模块中没有一个额外的副本,npm ls react返回一个实例,我没有安装react插件。我正在使用webpack
在webpack配置中添加别名没有帮助,重新安装依赖项没有帮助,从npm/webpack外部删除react和链接它没有帮助
这是我的网页配置:
module.exports = {
watch: true,
entry: "./components/FreshInvestigationForm/FreshInvestigationForm.tsx",
output: {
filename: "bundle.js",
path: __dirname + "/dist"
},
devtool: "source-map",
resolve: {
extensions: [".ts", ".tsx", ".js", ".json", "css"]
},
module: {
rules: [
{
test: /\.ts|\.tsx$/,
use: ["babel-loader","awesome-typescript-loader"]
},
{
test: /\.css?$/,
use: ["css-loader"]
},
{
test: /\.(eot|svg|ttf|woff|woff2)$/,
use: 'file-loader?name=public/fonts/[name].[ext]'
},
{
test: /\.(jpe?g|png|gif|svg)$/i,
use: ['file-loader?hash=sha512&digest=hex&name=[hash].[ext]',
'image-webpack-loader?bypassOnDebug&optimizationLevel=7&interlaced=false']
},
{
enforce: "pre",
test: /\.js$|\.jsx$/,
use: ["babel-loader", "source-map-loader"]
}
]
}
};
还有我的依赖关系
"dependencies": {
"@types/react": "15.0.30",
"@types/react-dom": "^15.5.1",
"awesome-typescript-loader": "^3.2.1",
"prop-types": "^15.5.10",
"react": "^15.6.1",
"react-dom": "^15.6.1",
"source-map": "^0.5.6",
"style-loader": "^0.18.2",
"typescript": "^2.4.2"
},
"devDependencies": {
"babel-core": "^6.25.0",
"babel-loader": "^6.4.1",
"babel-plugin-transform-es2015-modules-commonjs": "^6.24.1",
"babel-plugin-transform-object-assign": "^6.22.0",
"babel-plugin-transform-runtime": "^6.23.0",
"babel-polyfill": "^6.23.0",
"babel-preset-env": "^1.6.0",
"babel-preset-es2015": "^6.24.1",
"babel-preset-react": "^6.24.1",
"babel-runtime": "^6.23.0",
"css-loader": "^0.28.4",
"file-loader": "^0.11.2",
"image-webpack-loader": "^3.3.1",
"source-map-loader": "^0.2.1",
"typescript-simple-loader": "^0.3.8",
"webpack": "^3.3.0"
}
而且,这是一个多么可怕的错误,几乎每个解决它的人都以不同的方式来做
编辑:
我已经设法缩小了问题的范围,有几个组件触发了错误,但我无法确定问题。它们都在同一个地方被称为:
listToRender.forEach((item: field, index: number) => {
const subGroup: Object = item.hasOwnProperty("subGroup") ? item.subGroup : null;
const isDropdown = this.state.dropdowns[item.value] !== undefined;
const isSearchDropdown = this.state.searchDropdowns.indexOf(item.value) > -1;
const isMultiYear = this.state.multiYear.indexOf(item.value) > -1;
const isMultipleSelection = this.state.multipleSelectionDropdowns.indexOf(item.value) > -1;
if (isSearchDropdown) {
listElems.push(<SearchSelectFormElem /> }
else {and so on for other possibilities}
return(<ul>{listToRender}</ul>)
listToRender.forEach((项目:字段,索引:编号)=>{
const subGroup:Object=item.hasOwnProperty(“subGroup”)?item.subGroup:null;
const isDropdown=this.state.dropdowns[item.value]!==未定义;
const isSearchDropdown=this.state.searchDropdowns.indexOf(item.value)>-1;
const isMultiYear=this.state.multiYear.indexOf(item.value)>-1;
const isMultipleSelection=this.state.multipleSelectionDropdowns.indexOf(item.value)>-1;
如果(isSearchDropdown){
listlems.push(}
else{其他可能性依此类推}
返回({listToRender}
)
这是最短的一个有问题的组件。不要被它有一个ref误导,删除它不会改变任何东西
import * as React from "react";
var $: any = $;
export interface IProps {
givenId: string;
specialType: string;
inputValue?: string;
updateModel: Function;
}
export default class SearchSelectFormElem extends React.Component<IProps, { selectNode: any }> {
private searchSelect: HTMLSelectElement;
showDropdown() {
$(this.searchSelect).select2("open");
}
componentDidMount() {
$(this.searchSelect).select2({ selec2 options });
}
render() {
let fieldLabel: string = this.props.givenId;
fieldLabel = fieldLabel.replace(/([A-Z])/g, ' $1').trim();
return (
<li className="form-list-elem has-special-input dropdown">
<label htmlFor={this.props.givenId} className="form-label">
{fieldLabel}
</label>
<div className="special-wrapper">
<select ref={(node) => {this.searchSelect = node}} className="form-input main-form-input select2picker search-dropdown" id={this.props.givenId}>
<option>{this.props.inputValue}</option>
</select>
<span className="special-control dropdown" onClick={this.showDropdown.bind(this)}></span>
</div>
</li>
);
}
}
import*as React from“React”;
var$:any=$;
导出接口IProps{
givenId:字符串;
特殊类型:字符串;
inputValue?:字符串;
updateModel:函数;
}
导出默认类SearchSelectFormElem扩展React.Component{
私有searchSelect:HTMLSelectElement;
摊牌{
$(this.searchSelect)。选择2(“打开”);
}
componentDidMount(){
$(this.searchSelect).select2({selec2 options});
}
render(){
让fieldLabel:string=this.props.givenId;
fieldLabel=fieldLabel.replace(/([A-Z])/g,'$1').trim();
返回(
{fieldLabel}
{this.searchSelect=node}}className=“表单输入主表单输入select2picker搜索下拉列表”id={this.props.givenId}>
{this.props.inputValue}
);
}
}
正如我之前所写的,错误非常可怕,错误消息毫无帮助
实际原因是jquery(项目正在迁移到react,但依赖于一些jquery插件)。尽管工作正常,react只允许通过导入调用它。一旦我开始这样调用它
import * as $ from 'jquery'
应用程序重新开始工作。您是否尝试查看了npm ls。可能是不同版本的全局和本地副本?是的,我找到了。但我什么也没找到。