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I cannot add a new component to my Nativescript project, when I execute ng generate component faqs it returns the error:
Option "entryComponent" is deprecated: Since version 9.0.0 with Ivy, entryComponents is no longer necessary.
Cannot read property 'kind' of undefined
or if I run it like ng generate component it asks me the components name
? What name would you like to use for the component? faqs
and returns
Option "entryComponent" is deprecated: Since version 9.0.0 with Ivy, entryComponents is no longer necessary.
Cannot read property 'match' of undefined
I am using:
Nativescript 7.0.10
Angular CLI: 10.1.4
Node: 12.18.4
OS: win32 x64
Angular: 10.1.4
... animations, cli, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router
Ivy Workspace: Yes
Package Version
------------------------------------------------------
@angular-devkit/architect 0.1001.4
@angular-devkit/core 10.0.8
@angular-devkit/schematics 10.1.4
@ngtools/webpack 10.1.4
@schematics/angular 10.1.4
@schematics/update 0.1001.4
rxjs 6.6.3
typescript 3.9.7
And I just run:
tns create HelloWorld
npm i --save-dev @angular/cli
npm install --save-dev @nativescript/schematics
npm install --save-dev @schematics/angular
811
Add undefined check on variable To fix the “cannot read property of undefined” error, check that the value is not undefined before accessing the property. For example, in this code: const auth = undefined; console. log(auth); // undefined // TypeError: Cannot read properties of undefined (reading 'user') console.
The "Cannot read Property '0' of undefined" error occurs when accessing an undefined value at index 0 . To solve the error, initialize the variable to the correct data type, e.g. array or string, before accessing the index.
Undefined means that a variable has been declared but has not been assigned a value. In JavaScript, properties and functions can only belong to objects. Since undefined is not an object type, calling a function or a property on such a variable causes the TypeError: Cannot read property of undefined .
According to https://github.com/NativeScript/nativescript-schematics/issues/302 the solution/workaround is to update typescript to version 4, i.e. run
npm install --save-dev typescript@4
I tested the following steps, and it seems to work:
npm i -g @nativescript/schematics
ng new -c=@nativescript/schematics my-project --shared
cd my-project
npm install --save-dev typescript@4
ng g component bla
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