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i'm new with angular and trying to upgrade from 9.0.0 to 9.1.11 to upgrade my typescript from 3.7.5 to 3.8 to use countries-map plugin in my app.

When I run the command ng update @angular/cli@9.1 @angular/core@9.1 i got

I am upgrading my application from Angular 8 to 9. I used the below command.

I am having some issues with my Angular 5, when I try to run ng serve.

The issue that is happening is the followig:

I upgraded from Angular 9.17 to 9.19 and now ng build fails with the following error complaining about a variable declaration in both @types/node and zone.js:

ERROR in node_modules/@types/node/ts3.5/globals.global.d.ts:1:13 - error TS2403: Subsequent variable declarations must have the same type. Variable 'global' must be of type 'Global', but here has type 'Global & typeof globalThis'.

1 declare var global: NodeJS.Global & typeof globalThis; ~~~~~~

node_modules/zone.js/dist/zone.js.d.ts:600:13 600 declare var global: NodeJS.Global; ~~~~~~ 'global' was also declared here.

It was working fine before upgrading and now won't build. This was the only change.

Please help.

My package.json

I have been trying to deploy my Angular 5 application, into Heroku. I already did this for other projects, but for this one, there might have some dependency problem and I can not do the same.

On my local machine, I can run ng build without any errors.

On the other hand, when Heroku is running this command (ng build), I receive the following error:

I have an angular application that uses signalR. It is hosted in a .NET core 3.1 application. Since upgrading to Angular 9, signalR no longer works. Everything was working fine in Angular 8. Since update, I've been getting errors like

404 Error: Failed to complete negotiation with the server

Failed to start the connection

I am using MessagePackHubProtocol. In the package.json file I have the following packages:

I have an Angular application that is hosted in a .net core 3.1 application. I upgraded from 8 to 9 following the official guide and now my application won't build. I get the following errors:

"Module not found: Error: Can't resolve '@angular/cdk/layout/breakpoints'", "Field 'browser' doesn't contain a valid alias configuration resolve as module looking for modules in No description file found Field 'browser' doesn't contain a valid alias configuration No description file found no extension Field 'browser' doesn't contain a valid alias configuration /@angular/cdk/layout/breakpoints doesn't exist .ts"

I get the same errors above for @angular/material/core/common-behaviors, @angular/material/core/datetime, and @angular/material/core/ripple.

I've included all the files that I thought may be helpful. I've been trying to fix this for ages and have run out of ideas. This is very frustrating, Please help.

package.json: