As Angular 6 is here, I want to upgrade or move my angular 5 client application to angular 6, but I'm not getting any tutorial or anything which can guide me through.
According to me I just need to run a new Angular CLI and then have to move my older source to new project. I read the Angular 6 is using a new renderer called Ivy. Will I have to change my project according to Ivy?
Upgrade from Angular v6 to Angular v7
Version 7 of Angular has been released Official Angular blog link. Visit official angular update guide https://update.angular.io for detailed information. These steps will work for basic angular 6 apps using Angular Material.
ng update @angular/cli
ng update @angular/core
ng update @angular/material
Upgrade from Angular v5 to Angular v6
Version 6 of Angular has been released Official Angular blog link. I have mentioned general upgrade steps below, but before and after the update you need to make changes in your code to make it workable in v6, for that detailed information visit official website https://update.angular.io .
Upgrade Steps (largely taken from the official Angular Update Guide for a basic Angular app using Angular Material):
Make sure NodeJS version is 8.9+ if not update it.
Update Angular cli globally and locally, and migrate the old configuration .angular-cli.json to the new angular.json format by running the following:
npm install -g @angular/cli npm install @angular/cli ng update @angular/cliUpdate all of your Angular framework packages to v6,and the correct version of RxJS and TypeScript by running the following:
ng update @angular/coreUpdate Angular Material to the latest version by running the following:
ng update @angular/materialRxJS v6 has major changes from v5, v6 brings backwards compatibility package rxjs-compat that will keep your applications working, but you should refactor TypeScript code so that it doesn't depend on rxjs-compat. To refactor TypeScript code run following:
npm install -g rxjs-tslint rxjs-5-to-6-migrate -p src/tsconfig.app.jsonNote: Once all of your dependencies have updated to RxJS 6, remove rxjs- compat as it increases bundle size. please see this RxJS Upgrade Guide for more info.
npm uninstall rxjs-compatDone run
ng serveto check it.
If you get errors in build refer https://update.angular.io for detailed info.
Upgrade from Angular v5 to Angular 6.0.0-rc.5
Upgrade rxjs to 6.0.0-beta.0, please see this RxJS Upgrade Guide for more info. RxJS v6 has breaking change hence first make your code compatible to latest RxJS version.
Update NodeJS version to 8.9+ (this is required by angular cli 6 version)
Update Angular cli global package to next version.
npm uninstall -g @angular/cli npm cache verifyif npm version is < 5 then use
npm cache cleannpm install -g @angular/cli@nextChange angular packages versions in package.json file to
^6.0.0-rc.5"dependencies": { "@angular/animations": "^6.0.0-rc.5", "@angular/cdk": "^6.0.0-rc.12", "@angular/common": "^6.0.0-rc.5", "@angular/compiler": "^6.0.0-rc.5", "@angular/core": "^6.0.0-rc.5", "@angular/forms": "^6.0.0-rc.5", "@angular/http": "^6.0.0-rc.5", "@angular/material": "^6.0.0-rc.12", "@angular/platform-browser": "^6.0.0-rc.5", "@angular/platform-browser-dynamic": "^6.0.0-rc.5", "@angular/router": "^6.0.0-rc.5", "core-js": "^2.5.5", "karma-jasmine": "^1.1.1", "rxjs": "^6.0.0-uncanny-rc.7", "rxjs-compat": "^6.0.0-uncanny-rc.7", "zone.js": "^0.8.26" }, "devDependencies": { "@angular-devkit/build-angular": "~0.5.0", "@angular/cli": "^6.0.0-rc.5", "@angular/compiler-cli": "^6.0.0-rc.5", "@types/jasmine": "2.5.38", "@types/node": "~8.9.4", "codelyzer": "~4.1.0", "jasmine-core": "~2.5.2", "jasmine-spec-reporter": "~3.2.0", "karma": "~1.4.1", "karma-chrome-launcher": "~2.0.0", "karma-cli": "~1.0.1", "karma-coverage-istanbul-reporter": "^0.2.0", "karma-jasmine": "~1.1.0", "karma-jasmine-html-reporter": "^0.2.2", "postcss-loader": "^2.1.4", "protractor": "~5.1.0", "ts-node": "~5.0.0", "tslint": "~5.9.1", "typescript": "^2.7.2" }Next update Angular cli local package to next version and install above mentioned packages.
rm -rf node_modules dist # use rmdir /S/Q node_modules dist in Windows Command Prompt; use rm -r -fo node_modules,dist in Windows PowerShell npm install --save-dev @angular/cli@next npm installThe Angular CLI configuration format has been changed from angular cli 6.0.0-rc.2 version, and your existing configuration can be updated automatically by running the following command. It will remove old config file .angular-cli.json and will write new angular.json file.
ng update @angular/cli --migrate-only --from=1.7.4
Note :- If you get following error "The Angular Compiler requires TypeScript >=2.7.2 and <2.8.0 but 2.8.3 was found instead". run following command :
npm install typescript@2.7.2
Angular 6 has just been released.
https://blog.angular.io/version-6-of-angular-now-available-cc56b0efa7a4
Here is what worked for one of my smaller projects
- npm install -g @angular/cli
- npm install @angular/cli
- ng update @angular/cli --migrate-only --from=1.7.0
- ng update @angular/core
- npm install rxjs-compat
- ng serve
You might need to update your run scripts in package.json For eg. if you use flags like "app" and "environment" These have been updated to "project" and "configuration" respectively.
Refer https://update.angular.io/ for more detailed guide.
Just use the official upgrade guide which will tell you what you need to do for your own particular needs:
Check the step by step upgrade details from Angular 5 to Angular 6. These provides details on issues you encounter during upgrade and how to resolve them.
- Update your node version to 8 or above and Install Angular cli latest globally by npm i -g @angular/cli@latest.
- Angular 6 uses angular.json as configuration file instead of .anguar-cli.json. Also tslint has been changed. Check https://github.com/angular/angular-cli/wiki/angular-workspace for latest configuration details. You have to move any of your existing configuration to new configuration file.
- To do this create another dummy project with latest cli using ng new ‘your-project’ and same defaults such as prefix, style etc you used earlier for your project. Create new project with cli https://github.com/angular/angular-cli/wiki/new
- Use https://update.angular.io/ to check what has been changed from your current version of Angular → Angular 6. It provides usage of how to change/fix them.
- Follow the steps above and copy/update the angular.json file created in step2. Do npm i in your project to get all dependencies and do npm update
- Now comes the big part. RxJS upgrade and resolving conflicts. RxJS has standardised imports of operators and Observable creators with this release. Do npm i -g rxjs-tslint and add below lint configuration in tslint.json
{
"rulesDirectory": [
"node_modules/rxjs-tslint"
],
"rules": {
"rxjs-collapse-imports": true,
"rxjs-pipeable-operators-only": true,
"rxjs-no-static-observable-methods": true,
"rxjs-proper-imports": true
}
}
- Now run ng lint --fix. This fixes few items but most of the remaining issues will be highlighted and you have to fix it manually.
Operators Name change:
do -> tap,
catch -> catchError,
switch -> switchAll,
finally -> finalize
All operators moved to rxjs/operators
import { map, filter, reduce } from 'rxjs/operators';
Observable creation methods are moved to rxjs
import { Observable, Subject, of, from } from 'rxjs';
You are all set. Welcome to Angular 6 :) Check my blog post here on how to upgrade
I had to re-run ng update @angular/cli for angular-cli.json to be changed to angular.json
Please run the below comments to update to Angular 6 from Angular 5
- ng update @angular/cli
- ng update @angular/core
- npm install rxjs-compat (In order to support older version rxjs 5.6 )
- npm install -g rxjs-tslint (To change from rxjs 5 to rxjs 6 format in code. Install globally then only will work)
- rxjs-5-to-6-migrate -p src/tsconfig.app.json (After installing we have to change it in our source code to rxjs6 format)
- npm uninstall rxjs-compat (Remove this finally)
Complete guide
-----------------With angular-cli--------------------------
1. Update CLI globally and locally
Using NPM ( make sure that you have node version 8+ )
npm uninstall -g @angular/cli npm cache clean npm install -g @angular/cli@latest npm i @angular/cli --saveUsing Yarn
yarn remove @angular/cli yarn global add @angular/cli yarn add @angular/cli
2.Update dependencies
ng update @angular/cli
ng update @angular/core
ng update @angular/material
ng update rxjs
Angular 6 now depends on TypeScript 2.7 and RxJS 6
Normally that would mean that you have to update your code everywhere RxJS imports and operators are used, but thankfully there’s a package that takes care of most of the heavy lifting:
npm i -g rxjs-tslint
//or using yarn
yarn global add rxjs-tslint
Then you can run rxjs-5-to-6-migrate
rxjs-5-to-6-migrate -p src/tsconfig.app.json
finally remove rxjs-compat
npm uninstall rxjs-compat
// or using Yarn
yarn remove rxjs-compat
Refer to this link https://alligator.io/angular/angular-6/
-------------------Without angular-cli-------------------------
So you have to manually update your package.json file.
Then run
npm update
npm install --save rxjs-compat
npm i -g rxjs-tslint
rxjs-5-to-6-migrate -p src/tsconfig.app.json
As Vinay Kumar pointed out that it will not update global installed Angular CLI. To update it globally just use following commands:
npm uninstall -g @angular/cli
npm cache clean
npm install -g @angular/cli@latest
Note if you want to update existing project you have to modify existing project, you should change package.json inside your project.
There are no breaking changes in Angular itself but they are in RxJS, so don't forget to use rxjs-compat library to work with legacy code.
npm install --save rxjs-compat
I wrote a good article about installation/updating Angular CLI http://bmnteam.com/angular-cli-installation/
simply run the following command:
ng update
note: this will not update globally.
This is how I make it work.
My Environment:
Angular CLI Global : 6.0.0, Local: 1.7.4, Angular: 5.2, Typescript 2.5.3
Note: To enable
ng Updateyou need to install Angular CLI 6.0 firstnpm install -g @angular/cli or npm install @angular/cli
ng update //update Angular Package core/common/complier... to 6.0.0ng update @angular/cli //change angular-cli.json to angular.json
optional if you have angular-material 5.4.2, ngx-translate 9.1.1, ng-bootstrap/ng-bootstrap 1.1.1:
ng update @angular/material //upgrade to 6.0.1npm install @ngx-translate/core@10.0.1 --save //upgrade ngX translate to 10.0.1 for Angular 6
5 npm install --save @ng-bootstrap/ng-bootstrap@2.0.0 //for ng-bootstrap
If you use Observable and get the error:
ERROR in node_modules/rxjs/Observable.d.ts(1,15): error TS2307: Cannot find module 'rxjs-compat/Observable'. node_modules/rxjs/observable/of.d.ts(1,15): error TS2307: Cannot find module 'rxjs-compat/observable/of'.
Change: import { Observable } from "rxjs/Observable"; import { of } from 'rxjs/observable/of';
To
import { Observable, of } from "rxjs";
Angular CLI issue: https://github.com/angular/angular-cli/issues/10621
There are few steps to upgrade 2/4/5 to Angular 6.
npm uninstall --save-dev angular-cli
npm install --save-dev @angular/cli@latest
npm install
To fix the issue related to "angular.json" :-
ng update @angular/cli --migrate-only --from=1.7.4
Store MIGRATION
https://github.com/ngrx/platform/blob/master/MIGRATION.md#ngrxstore
RXJS MIGRATION
https://www.academind.com/learn/javascript/rxjs-6-what-changed/
Hoping this will help you :)
来源：https://stackoverflow.com/questions/48970553/want-to-upgrade-project-from-angular-v5-to-angular-v6