It does not work out of the box

[meehaws]

Hi,

wanted to play around with tree grid to see if this is suitable for my need, but provided sample repo does not work properly.

Steps:
Clone repo
npm install
npm start
open localhost:4200

and you will get:
Error: inject() must be called from an injection context

[rkrawiel]

Same for me. Building on following Angular version:
Angular CLI: 11.2.6
Node: 15.5.0
OS: win32 x64

Package Version

@angular-devkit/architect 0.1102.6 (cli-only)
@angular-devkit/core 11.2.6 (cli-only)
@angular-devkit/schematics 11.2.6 (cli-only)
@schematics/angular 11.2.6 (cli-only)
@schematics/update 0.1102.6 (cli-only)

[jesusarockias]

Thanks for your patience.

We suspect that the issue may be due to the Node version. We suggest you to use the stable LTS version of node inorder to resolve the issue.

Also, we request you to use the latest Angular versions as in the below image.

You can refer the below documentation for creating the application .
https://ej2.syncfusion.com/angular/documentation/treegrid/getting-started/

Kindly get back to us for further assistance.

[meehaws]

Definitely node is not an issue. Downgraded to TLS version, cleaned node cache, deleted npm modules, used the same angular version as in your example.
Problem is still there.

[xmarios]

Exact same issue here.

Any fix?

[jesusarockias]

Hi All,

We have checked this reported issue in different combination and it can be reproduced with higher version of Node starting from 15.0.0.

For testing this, we have completely uninstalled the node every time we switch between the version. For LTS version (14.16.1), we did the below steps where we are not able to reproduce the issue.

1. Installed Node 14.15.1
2. Cloned this repository
3. Installed the npm packages using "npm install"
4. Then, run the project using "npm run start"

Also, we noticed that while creating new Angular CLI project using Node version 15.5.0, we have below issues regarding NPM and installation.

Since angular expects different NPM version, we have installed the recommended version and tried to create new sample without any Syncfusion component but we have below issue in installation stage.

We believe that there might be some problem using current version of node other than LTS have some issue in Angular side itself. We yet to confirm this and we request you to use the LTS version of node 14.16.1 until then.