prerender.js | Fast webpages for all browsers | Search Engine Optimization library
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prerender.js loads pages quickly on any browser.
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QUESTION
I implemented Angular universal in my angular project but after that whenever I am building the project I am getting below error
[error] Error: Project does not exist. at WorkspaceNodeModulesArchitectHost.findProjectTarget (/home/atif/Desktop/Code/BlogFE/blogui/BlogApp/node_modules/@angular/cli/node_modules/@angular-devkit/architect/node/node-modules-architect-host.js:122:19) at WorkspaceNodeModulesArchitectHost.getBuilderNameForTarget (/home/atif/Desktop/Code/BlogFE/blogui/BlogApp/node_modules/@angular/cli/node_modules/@angular-devkit/architect/node/node-modules-architect-host.js:23:39) at RunCommand.runSingleTarget (/home/atif/Desktop/Code/BlogFE/blogui/BlogApp/node_modules/@angular/cli/models/architect-command.js:174:55) at RunCommand.runArchitectTarget (/home/atif/Desktop/Code/BlogFE/blogui/BlogApp/node_modules/@angular/cli/models/architect-command.js:217:35) at RunCommand.run (/home/atif/Desktop/Code/BlogFE/blogui/BlogApp/node_modules/@angular/cli/commands/run-impl.js:14:25) at RunCommand.validateAndRun (/home/atif/Desktop/Code/BlogFE/blogui/BlogApp/node_modules/@angular/cli/models/command.js:134:39) at async Object.runCommand (/home/atif/Desktop/Code/BlogFE/blogui/BlogApp/node_modules/@angular/cli/models/command-runner.js:201:24) at async default_1 (/home/atif/Desktop/Code/BlogFE/blogui/BlogApp/node_modules/@angular/cli/lib/cli/index.js:62:31)
angular.json file
...ANSWER
Answered 2021-Mar-15 at 07:31The issue is resolved as the code changes done in package.json by running the command
ng add @ng-toolkit/universal
referred to wrong project name
QUESTION
Question looks long winded - it's not!
I'm using Angular Universal to implement SSR, following this tutorial. Universal/express-engine is installed, main.js
is generated in the dist/projectname/server
folder, and I've created a prerender.js
folder in the project root.
When I try npm run prerender
it starts work prerendering until eventually hitting the following error:
ANSWER
Answered 2020-Jun-26 at 19:07You need to enable Ivy to get rid of the first problem (No NgModule found ...
).
For the 2nd one (Invalid constructor parameter decorator
), the reason is probably that you are using angular-font-awesome
, which is not maintained anymore and does not work with Ivy
So uninstall that package (npm uninstall angular-font-awesome -S
) and keep only the fortawesome
packages:
QUESTION
I have an application which I have managed to convert to Angular Universal (at my clients request).
I ran my application by using the command npm run serve:ssr
and pointed my browser to http://localhost:4000 which works.
Now I want to deploy. I have run npm run build:ssr
which has created a dist folder.
The dist folder doesn't have the "normal" angular files in it. It is relatively sparse, it has:
- a server.js
- a browser folder
- and a server folder
If I ftp these to my azure site (as I used to do with the normal angular application), it doesn't work. I get a error:
You do not have permission to view this directory or page.
So I tried to set up CI using VSTS and I followed some steps I found for publishing angular universal (although they were not very clear). This is my yaml file:
...ANSWER
Answered 2018-Dec-04 at 22:11This is mine and it works
QUESTION
A Brief Backstory
I have been implementing several upgrades to an Angular 8 application such as server-side rendering, and Google Analytics. As most developers do, I would code then test then move on to the next task. Typically I use ng serve
to run the application as I am developing.
With Server-side rendering, to test speed, lazy-loaded images, etc, you need to use a node express server running on a generated JS file. After building, etc, I use Node prerender
(my js file is prerender.js) to see what the application will look like prerendering on the server.
When I run this command, I should not get any errors, and I know my prender file will start a local server on port 4000.
The Problem
I get errors when running a node express server that I do not get when running with ng serve
I recently got an error that said:
ANSWER
Answered 2019-Dec-10 at 18:39This looks like it was ApplicationRef
that triggered the error, and that class is provided internally by the Angular core.
It could be failing in the constructor of the class, and there are a few calls to subscribe
on Zone observables. I don't think you're going to find anything in your source code that directly relates to this error. It looks like a build configuration problem.
I do not know what could possibly produce this problem, but I would start a new project with SSR and compare the differences to your current project.
QUESTION
When I run gcloud app deploy in Cloud Shell in my browser, I get an Error - Cannot find module '/srv/server.js' over and over. I also get a 500 server error when I view my app URL.
I have a basic Angular app with one lazy loaded path/component just for testing. I installed Angular Universal and then I built my app locally using the commands ng build --prod && npm run build:ssr
which put the following files in the dist folder:
ANSWER
Answered 2019-Oct-16 at 14:59Can you attempt to point a main in your package.json?
This seems to be a similar issue and you can see how you can do it here as well. Link.
If that doesn't work please post how you are doing your require so we can have a further look.
Hope this helps.
UPDATE:
Maybe this can help you better understand the issue.
First, Node looks for a package.json file and checks if it contains a main property. It will be used to point a file inside the package directory that will be the entry point. If main property does not exist, then Node tries in order index.js, index.json and index.node.
Index.js is the default one that Node looks for. You do not have an index.js. So you would have to specify in the main what are you using so it knows the entrypoint.
If server.js is the file that starts the server, and it is in the root of the folder, attempt it like this.
If server.js is in another folder try /'folder'/server.js in the main.
QUESTION
First of all, thanks stackoverflow provide this platform to ask questions, and also thanks to people who spend their time to help.
I am quiter new in angular. I have an angular universal project, more than one domains point to that hosting server, I want to load different content based on domain name. So I need to get domain name in angular component.
I have tried solution from stackoverflow, but I get error when I add below code:
...ANSWER
Answered 2019-Aug-08 at 20:09I had the same problem a few weeks ago but never got the time to investigate it.
The workaround I used was to modify the declaration in server.ts
to type options
as any
.
QUESTION
(Complete ASP.Net Core + Angular Universal code at https://github.com/jonasarcangel/ModuleIssue)
I'm getting the following error from my prerendered SPA using Angular Universal when using "dotnet run" and navigating to any route. It does not happen when I run in ClientApp folder using "npm run build:ssr && npm run start".
...ANSWER
Answered 2018-Aug-12 at 03:04I cloned your project and the only change i did was , i removed Microsoft.AspNetCore.SpaServices.Extensions
from the reference.
and it works fine now.
QUESTION
For some reasons I want to create prerender build of my angular 5 project using https://github.com/angular/universal-starter instead of server-side rendering.
There are 4 levels in my routes like this:
...ANSWER
Answered 2018-May-09 at 00:57The setup for prerender and runtime server-side render is mostly similar, the only difference is one is static, the other dynamic. You will still configure everything Universal requires you to set up for it to work.
Before I go into your questions, I highly recommend you to follow this (step-by-step configurations) and this (useful sections about Angular Universal pitfalls) guides to configure Angular Universal as it is one of the more comprehensive and up-to-date write ups that I've read.
First question: How can I create a html file for each of these levels by using prerender.js and How should my static.paths.ts look like?
Your static.path.ts should contain all routes that you want to prerender:
QUESTION
I am using react-helmet and on the client all is good in the inspect window and the tags are being outputted correctly. However, when I boot up in production and the SSR kicks in the tags aren't shown in the source and I'm getting no errors at all.
I tried logging the 'stringified' title tag too and got:
...ANSWER
Answered 2017-Dec-08 at 15:24I found the solution to this the other week and thought I may as well update this so it can help anyone else having this problem...
Good news is it was surprisingly simple!
For me anyway it was down to the fact that I separate webpack bundles for the client and the server. So in layman's terms it was including react-helmet twice, once for the client and once for the server, meaning all the state holding the meta tags in the client side code didn't exist in the .rewind() call on the server.
Just add this to your server webpack config file
externals: ['react-helmet']
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