কৌণিক 4.4 থেকে 5.0 এ আপগ্রেড করার পরে এবং সমস্ত এইচটিটিপিডমডুল এবং এইচটিটিপি কে এইচটিপিপিএলেন্টমডুলিতে আপডেট করার পরে আমি এই ত্রুটি পেতে শুরু করি।
আমি কিছুটা নির্ভরতার কারণে না হলেও এটি সমস্যার সমাধান করে না তা নিশ্চিত হওয়ার জন্য আবার এইচটিটিপিডমডুল যুক্ত করেছি
App.module এ, আমি সমস্ত সঠিকভাবে সেট করেছি
import { HttpModule } from '@angular/http';
import { HttpClientModule, HttpClient } from '@angular/common/http';
.
.
.
@NgModule({
imports: [
BrowserModule,
HttpClientModule,
HttpModule,
BrowserAnimationsModule,
FormsModule,
AppRoutingModule,
.
.
.
এই ত্রুটিটি কোথা থেকে আসছে তা আমি জানি না বা কীভাবে এর অভ্যন্তরীণ দিকটি পাব তা সম্পর্কে আমার কোনও ধারণা নেই। আমার একটি সতর্কতাও রয়েছে (এটি নীচেও রেখে দিন) সম্ভবত এটি সম্পর্কিত।
Error: StaticInjectorError[HttpClient]:
StaticInjectorError[HttpClient]:
NullInjectorError: No provider for HttpClient!
at _NullInjector.get (vendor.js?v=mekBM8IVBK72-MIZOVSTJizGi_TD_xK3uhPOCRlEHwg:5665)
at resolveToken (vendor.js?v=mekBM8IVBK72-MIZOVSTJizGi_TD_xK3uhPOCRlEHwg:5953)
at tryResolveToken (vendor.js?v=mekBM8IVBK72-MIZOVSTJizGi_TD_xK3uhPOCRlEHwg:5895)
at StaticInjector.get (vendor.js?v=mekBM8IVBK72-MIZOVSTJizGi_TD_xK3uhPOCRlEHwg:5766)
at resolveToken (vendor.js?v=mekBM8IVBK72-MIZOVSTJizGi_TD_xK3uhPOCRlEHwg:5953)
at tryResolveToken (vendor.js?v=mekBM8IVBK72-MIZOVSTJizGi_TD_xK3uhPOCRlEHwg:5895)
at StaticInjector.get (vendor.js?v=mekBM8IVBK72-MIZOVSTJizGi_TD_xK3uhPOCRlEHwg:5766)
at resolveNgModuleDep (vendor.js?v=mekBM8IVBK72-MIZOVSTJizGi_TD_xK3uhPOCRlEHwg:15328)
at _createClass (vendor.js?v=mekBM8IVBK72-MIZOVSTJizGi_TD_xK3uhPOCRlEHwg:15373)
at _createProviderInstance$1 (vendor.js?v=mekBM8IVBK72-MIZOVSTJizGi_TD_xK3uhPOCRlEHwg:15339)
সতর্কীকরণ বার্তা:
./node_modules/@angular/Common/esm5/http.js
There are multiple modules with names that only differ in casing.
This can lead to unexpected behavior when compiling on a filesystem with other case-semantic.
Use equal casing. Compare these module identifiers:
* D:\XXX\node_modules\@angular\Common\esm5\http.js
Used by 21 module(s), i. e.
D:\XXX\node_modules\awesome-typescript-loader\dist\entry.js?silent=true!D:\XXX\node_modules\angular2-template-loader\index.js!D:\XXX\ClientApp\app\services\notification-endpoint.service.ts
* D:\XXX\node_modules\@angular\common\esm5\http.js
Used by 1 module(s), i. e.
D:\XXX\node_modules\awesome-typescript-loader\dist\entry.js?silent=true!D:\XXX\node_modules\angular2-template-loader\index.js!D:\XXX\ClientApp\app\app.module.ts
@ ./node_modules/@angular/Common/esm5/http.js
@ ./ClientApp/app/services/notification-endpoint.service.ts
@ ./ClientApp/app/app.module.ts
@ ./ClientApp/boot.browser.ts
@ multi event-source-polyfill webpack-hot-middleware/client?path=__webpack_hmr&dynamicPublicPath=true ./ClientApp/boot.browser.ts
বর্তমান আচরণ
StaticInjectorError[HttpClient]: StaticInjectorError[HttpClient]: NullInjectorError: No provider for HttpClient!
পরিবেশ
Angular version: 5.0.0 and 5.0.1 (also 5.1 beta)
Browser:
- all
For Tooling issues:
- Node version: 8.5.0
- Platform: windows
{
"name": "X",
"version": "1.0.0",
"description": "X",
"author": {
"name": "X X",
"email": "XX",
"url": "X"
},
"homepage": "X",
"dependencies": {
"@angular/animations": "^5.1.0-beta.0",
"@angular/common": "^5.1.0-beta.0",
"@angular/compiler": "^5.1.0-beta.0",
"@angular/compiler-cli": "^5.1.0-beta.0",
"@angular/core": "^5.1.0-beta.0",
"@angular/forms": "^5.1.0-beta.0",
"@angular/http": "^5.1.0-beta.0",
"@angular/platform-browser": "^5.1.0-beta.0",
"@angular/platform-browser-dynamic": "^5.1.0-beta.0",
"@angular/platform-server": "^5.1.0-beta.0",
"@angular/router": "^5.1.0-beta.0",
"@ngtools/webpack": "^1.8.0",
"@ngx-translate/core": "^8.0.0",
"@ngx-translate/http-loader": "^2.0.0",
"@swimlane/ngx-datatable": "^11.0.3",
"@types/jquery": "^3.2.16",
"@types/webpack-env": "^1.13.2",
"angular2-template-loader": "^0.6.2",
"aspnet-webpack": "^2.0.1",
"awesome-typescript-loader": "^3.3.0",
"bootstrap": "^3.3.7",
"bootstrap-datepicker": "^1.7.1",
"bootstrap-select": "^1.12.4",
"bootstrap-toggle": "^2.2.2",
"bootstrap-vertical-tabs": "^1.2.2",
"chart.js": "^2.7.1",
"core-js": "^2.5.1",
"css": "^2.2.1",
"css-loader": "^0.28.7",
"event-source-polyfill": "^0.0.11",
"expose-loader": "^0.7.3",
"extract-text-webpack-plugin": "^3.0.2",
"file-loader": "^1.1.5",
"font-awesome": "^4.7.0",
"html-loader": "^0.5.1",
"jquery": "^3.2.1",
"json-loader": "^0.5.7",
"ng2-charts": "^1.6.0",
"ng2-toasty": "^4.0.3",
"ngx-bootstrap": "^2.0.0-beta.8",
"node-sass": "^4.6.0",
"popper.js": "^1.12.6",
"raw-loader": "^0.5.1",
"rxjs": "^5.5.2",
"sass-loader": "^6.0.6",
"style-loader": "^0.19.0",
"to-string-loader": "^1.1.5",
"typescript": "^2.6.1",
"url-loader": "^0.6.2",
"web-animations-js": "^2.3.1",
"webpack": "^3.8.1",
"webpack-hot-middleware": "^2.20.0",
"webpack-merge": "^4.1.1",
"zone.js": "^0.8.18"
},
"devDependencies": {
"@types/chai": "^4.0.4",
"@types/jasmine": "^2.6.3",
"chai": "^4.1.2",
"jasmine-core": "^2.8.0",
"karma": "^1.7.1",
"karma-chai": "^0.1.0",
"karma-chrome-launcher": "^2.2.0",
"karma-cli": "^1.0.1",
"karma-jasmine": "^1.1.0",
"karma-jasmine-html-reporter": "^0.2.2",
"karma-webpack": "^2.0.5"
},
"scripts": {
"dev-build": "node node_modules/webpack/bin/webpack.js --config webpack.config.vendor.js",
"test": "karma start ClientApp/test/karma.conf.js"
}
}
webpack.config.js
const path = require('path');
const webpack = require('webpack');
const merge = require('webpack-merge');
const AotPlugin = require('@ngtools/webpack').AotPlugin;
const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin;
module.exports = (env) => {
// Configuration in common to both client-side and server-side bundles
const isDevBuild = !(env && env.prod);
const sharedConfig = {
stats: { modules: false },
context: __dirname,
resolve: { extensions: ['.js', '.ts'] },
output: {
filename: '[name].js',
publicPath: 'dist/' // Webpack dev middleware, if enabled, handles requests for this URL prefix
},
module: {
rules: [
{ test: /\.ts$/, use: isDevBuild ? ['awesome-typescript-loader?silent=true', 'angular2-template-loader'] : '@ngtools/webpack' },
{ test: /\.html$/, use: 'html-loader?minimize=false' },
{ test: /\.css$/, use: ['to-string-loader', isDevBuild ? 'css-loader' : 'css-loader?minimize'] },
{ test: /\.scss$/, use: ['to-string-loader', isDevBuild ? 'css-loader' : 'css-loader?minimize', 'sass-loader'] },
{ test: /\.(png|jpg|jpeg|gif|svg)$/, use: 'url-loader?limit=25000' }
]
},
plugins: [new CheckerPlugin()]
};
// Configuration for client-side bundle suitable for running in browsers
const clientBundleOutputDir = './wwwroot/dist';
const clientBundleConfig = merge(sharedConfig, {
entry: { 'main-client': './ClientApp/boot.browser.ts' },
output: { path: path.join(__dirname, clientBundleOutputDir) },
plugins: [
new webpack.DllReferencePlugin({
context: __dirname,
manifest: require('./wwwroot/dist/vendor-manifest.json')
})
].concat(isDevBuild ? [
// Plugins that apply in development builds only
new webpack.SourceMapDevToolPlugin({
filename: '[file].map', // Remove this line if you prefer inline source maps
moduleFilenameTemplate: path.relative(clientBundleOutputDir, '[resourcePath]') // Point sourcemap entries to the original file locations on disk
})
] : [
// Plugins that apply in production builds only
new webpack.optimize.UglifyJsPlugin(),
new AotPlugin({
tsConfigPath: './tsconfig.json',
entryModule: path.join(__dirname, 'ClientApp/app/app.module#AppModule')
})
])
});
return [clientBundleConfig];
};
webpack.config.vendor.js
const path = require('path');
const webpack = require('webpack');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const merge = require('webpack-merge');
const treeShakableModules = [
'@angular/animations',
'@angular/common',
'@angular/compiler',
'@angular/core',
'@angular/forms',
'@angular/http',
'@angular/platform-browser',
'@angular/platform-browser-dynamic',
'@angular/router',
'zone.js',
];
const nonTreeShakableModules = [
'bootstrap',
'core-js/client/shim',
'web-animations-js',
'event-source-polyfill',
'jquery',
'@swimlane/ngx-datatable/release/assets/icons.css',
'ng2-toasty',
'ng2-toasty/bundles/style-bootstrap.css',
'ng2-charts',
'ngx-bootstrap/modal',
'ngx-bootstrap/tooltip',
'ngx-bootstrap/popover',
'ngx-bootstrap/dropdown',
'ngx-bootstrap/carousel',
'bootstrap-vertical-tabs/bootstrap.vertical-tabs.css',
'bootstrap-toggle/css/bootstrap-toggle.css',
'bootstrap-toggle/js/bootstrap-toggle.js',
'bootstrap-select/dist/css/bootstrap-select.css',
'bootstrap-select/dist/js/bootstrap-select.js',
'bootstrap-datepicker/dist/css/bootstrap-datepicker3.css',
'font-awesome/css/font-awesome.css'
];
const allModules = treeShakableModules.concat(nonTreeShakableModules);
module.exports = (env) => {
const extractCSS = new ExtractTextPlugin('vendor.css');
const isDevBuild = !(env && env.prod);
const sharedConfig = {
stats: { modules: false },
resolve: { extensions: ['.js'] },
module: {
rules: [
{ test: /\.(gif|png|woff|woff2|eot|ttf|svg)(\?|$)/, use: 'url-loader?limit=100000' }
]
},
output: {
publicPath: 'dist/',
filename: '[name].js',
library: '[name]_[hash]'
},
plugins: [
new webpack.ProvidePlugin({ $: 'jquery', jQuery: 'jquery' }), // Maps these identifiers to the jQuery package (because Bootstrap expects it to be a global variable)
new webpack.ContextReplacementPlugin(/\@angular\b.*\b(bundles|linker)/, path.join(__dirname, './ClientApp')), // Workaround for https://github.com/angular/angular/issues/11580
new webpack.ContextReplacementPlugin(/angular(\\|\/)core(\\|\/)@angular/, path.join(__dirname, './ClientApp')), // Workaround for https://github.com/angular/angular/issues/14898
new webpack.IgnorePlugin(/^vertx$/) // Workaround for https://github.com/stefanpenner/es6-promise/issues/100
]
};
const clientBundleConfig = merge(sharedConfig, {
entry: {
// To keep development builds fast, include all vendor dependencies in the vendor bundle.
// But for production builds, leave the tree-shakable ones out so the AOT compiler can produce a smaller bundle.
vendor: isDevBuild ? allModules : nonTreeShakableModules
},
output: { path: path.join(__dirname, 'wwwroot', 'dist') },
module: {
rules: [
{ test: /\.css(\?|$)/, use: extractCSS.extract({ use: isDevBuild ? 'css-loader' : 'css-loader?minimize' }) }
]
},
plugins: [
extractCSS,
new webpack.DllPlugin({
path: path.join(__dirname, 'wwwroot', 'dist', '[name]-manifest.json'),
name: '[name]_[hash]'
})
].concat(isDevBuild ? [] : [
new webpack.optimize.UglifyJsPlugin()
])
});
return [clientBundleConfig];
}