angular-university / reactive-angular-course Goto Github PK
View Code? Open in Web Editor NEWHow to build Angular applications in Reactive style using plain RxJs - Patterns and Lightweight state management
License: MIT License
How to build Angular applications in Reactive style using plain RxJs - Patterns and Lightweight state management
License: MIT License
Hi Geeks,
When I am trying to run npm install
in the cloned repo showing the below warning
npm WARN EBADENGINE Unsupported engine { npm WARN EBADENGINE package: '[email protected]', npm WARN EBADENGINE required: { node: '0.10 || 0.12 || 4 || 5 || 6' }, npm WARN EBADENGINE current: { node: 'v16.17.0', npm: '8.19.2' } npm WARN EBADENGINE }
What to do Next ??
WebStorm has detected errors in search-lessons.route.ts file and unable to run "npm run server" because of this. Appreciate if you please advise how to resolve following errors:
Error:(13, 27) TS2345: Argument of type 'string | ParsedQs | string[] | ParsedQs[]' is not assignable to parameter of type 'string'.
Type 'ParsedQs' is not assignable to type 'string'.
Error:(14, 25) TS2345: Argument of type 'string | ParsedQs | string[] | ParsedQs[]' is not assignable to parameter of type 'string'.
Type 'ParsedQs' is not assignable to type 'string'.
Error:(19, 55) TS2367: This condition will always return 'false' since the types 'number' and 'string | ParsedQs | string[] | ParsedQs[]' have no overlap.
Error:(25, 94) TS2339: Property 'toLowerCase' does not exist on type 'string | ParsedQs | string[] | ParsedQs[]'.
Property 'toLowerCase' does not exist on type 'string[]'.
Information:Cannot find parent 'tsconfig.json'
Regards
[webpack-dev-server] [HPM] Error occurred while proxying request localhost:56652/api/courses to http://localhost:9000/ [ECONNREFUSED] (https://nodejs.org/api/errors.html#errors_common_system_errors)
give me that error how to fix it
On
this.http.get<{payload: Course[]}>
so you need to to do additional casting with
map(res => res.payload)
and it would already have the correct type.
Same goes for all the other HTTP requests.
tap(()=>this.coursesChanged.emit())).subscribe(); -> not compiling and angular crashes with this error
ERROR in ./node_modules/blocking-proxy/built/lib/client.js 7:12-26
Module not found: Error: Can't resolve 'url' in '/Users/venkateshmuddu/development/ontologyx-dev/angular-university/reactive-angular-course/node_modules/blocking-proxy/built/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "url": require.resolve("url/") }'
- install 'url'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "url": false }
ERROR in ./node_modules/blocking-proxy/built/lib/simple_webdriver_client.js 6:13-28
Module not found: Error: Can't resolve 'http' in '/Users/venkateshmuddu/development/ontologyx-dev/angular-university/reactive-angular-course/node_modules/blocking-proxy/built/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "http": require.resolve("stream-http") }'
- install 'stream-http'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "http": false }
ERROR in ./node_modules/blocking-proxy/built/lib/simple_webdriver_client.js 7:12-26
Module not found: Error: Can't resolve 'url' in '/Users/venkateshmuddu/development/ontologyx-dev/angular-university/reactive-angular-course/node_modules/blocking-proxy/built/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "url": require.resolve("url/") }'
- install 'url'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "url": false }
ERROR in ./node_modules/blocking-proxy/built/lib/webdriver_logger.js 6:11-24
Module not found: Error: Can't resolve 'fs' in '/Users/venkateshmuddu/development/ontologyx-dev/angular-university/reactive-angular-course/node_modules/blocking-proxy/built/lib'
ERROR in ./node_modules/blocking-proxy/built/lib/webdriver_logger.js 7:13-28
Module not found: Error: Can't resolve 'path' in '/Users/venkateshmuddu/development/ontologyx-dev/angular-university/reactive-angular-course/node_modules/blocking-proxy/built/lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
On the 1-start branch I get the following error when running 'npm start' for the very first time (Master branch compiles alright):
Error: src/app/app.module.ts:79:3 - error TS2345: Argument of type '{ declarations: (typeof CourseDialogComponent | typeof HomeComponent | typeof CourseComponent | typeof LoginComponent | typeof LessonComponent | typeof SafeUrlPipe)[]; imports: (typeof BrowserModule | typeof AppRoutingModule)[]; providers: undefined[]; bootstrap: (typeof AppComponent)[]; entryComponents: (typeof Cou...' is not assignable to parameter of type 'NgModule'.
Object literal may only specify known properties, and 'entryComponents' does not exist in type 'NgModule'.
79 entryComponents: [CourseDialogComponent]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This seems to resolve itself when you comment out line 79 from app.module.ts
I came across this issue while running this project. I am running on windows and have all the latest dependencies, still I am facing this issue, however on mac it is working fine. Can anyone please help me with that?
$ npm run server
[email protected] server
./node_modules/.bin/ts-node -P ./server/server.tsconfig.json ./server/server.ts
'.' is not recognized as an internal or external command,
operable program or batch file.
Can anyone please help me. I am stucked herer.
C:\Users\home>cd 3-services
C:\Users\home\3-services>cd 3-services
the npm run server command is not working
C:\Users\home\3-services\3-services>npm run server
[email protected] server
./node_modules/.bin/ts-node -P ./server.tsconfig.json ./server.ts
'.' is not recognized as an internal or external command,
operable program or batch file.
C:\Users\home\3-services\3-services>
I was following your course and I faced a problem. When creating loading component using completely reactive pattern, I get the "ExpressionChangedAfterItHasBeenCheckedError" error. I have reproduced the error in here.
I think it's an angular bug. What do you think?
I have just started the course, and when I try to run the command "npm run server", I get the following error...
D:\Ian\Documents\coding\angular\reactive-angular-course>npm run server
[email protected] server D:\Ian\Documents\coding\angular\reactive-angular-course
ts-node -P ./server/server.tsconfig.json ./server/server.ts
D:\Ian\Documents\coding\angular\reactive-angular-course\node_modules\ts-node\src\index.ts:307
throw new TSError(formatDiagnostics(diagnosticList, cwd, ts, lineOffset))
^
TSError: ⨯ Unable to compile TypeScript
server\search-lessons.route.ts (17,33): Argument of type 'string | ParsedQs | string[] | ParsedQs[]' is not assignable to parameter of type 'string'.
Type 'ParsedQs' is not assignable to type 'string'. (2345)
server\search-lessons.route.ts (18,31): Argument of type 'string | ParsedQs | string[] | ParsedQs[]' is not assignable to parameter of type 'string'.
Type 'ParsedQs' is not assignable to type 'string'. (2345)
server\search-lessons.route.ts (23,59): This condition will always return 'false' since the types 'number' and 'string | ParsedQs | string[] | ParsedQs[]' have no overlap. (2367)
server\search-lessons.route.ts (30,97): Property 'toLowerCase' does not exist on type 'string | ParsedQs | string[] | ParsedQs[]'.
Property 'toLowerCase' does not exist on type 'string[]'. (2339)
at getOutput (D:\Ian\Documents\coding\angular\reactive-angular-course\node_modules\ts-node\src\index.ts:307:15)
at D:\Ian\Documents\coding\angular\reactive-angular-course\node_modules\ts-node\src\index.ts:336:16
at Object.compile (D:\Ian\Documents\coding\angular\reactive-angular-course\node_modules\ts-node\src\index.ts:496:11)
at Module.m._compile (D:\Ian\Documents\coding\angular\reactive-angular-course\node_modules\ts-node\src\index.ts:392:43)
at Module._extensions..js (internal/modules/cjs/loader.js:787:10)
at Object.require.extensions.(anonymous function) [as .ts] (D:\Ian\Documents\coding\angular\reactive-angular-course\node_modules\ts-node\src\index.ts:395:12)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Module.require (internal/modules/cjs/loader.js:690:17)
npm ERR! Windows_NT 10.0.19041
npm ERR! argv "D:\Program Files\nodejs\node.exe" "C:\Users\Ian\AppData\Roaming\npm\node_modules\npm\bin\npm-cli.js" "run" "server"
npm ERR! node v10.16.0
npm ERR! npm v4.0.2
npm ERR! code ELIFECYCLE
npm ERR! [email protected] server: ts-node -P ./server/server.tsconfig.json ./server/server.ts
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] server script 'ts-node -P ./server/server.tsconfig.json ./server/server.ts'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the reactive-angular-course package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! ts-node -P ./server/server.tsconfig.json ./server/server.ts
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs reactive-angular-course
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls reactive-angular-course
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR! D:\Ian\Documents\coding\angular\reactive-angular-course\npm-debug.log
Project in angujar.json folder is named "angular-material-course", also there is another project entry called "angular-material-course-e2e", because of that, new components cannot be created with CLI.
Projects in angular.json file needs to be configured.
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.