angular-cli: ng new fails with "Schematic input does not validate against the Schema"

I had the same error when I used underscores in the new app name instead of hyphens:

npm new my_new_app >>> Fails npm new my-new-app >>> Succeeds

I had the same error when I used underscores in the new app name instead of hyphens:

I had the same error when one of the name-parts was digits, e.g. prototype-1234. Changing it to prototype-s1234 works. So here it’s a case of a bad regex.

I removed node_modules folder in users/{user name} and ng new [appname] now working.

Con la nueva actualización del Angular CLI debes de especificar con que tipo de versión trabajarás

ng new project-name --version=7.0.4 o ng new project-name --version=7.0.2

Saludos

Apparently if your project name has a “_” or “-” (underscore or hyphen) it tends to throw this error. I removed the special chars and it worked ok.

@westdabestdb Si te fijas replique tu ejemplo y si trabaja, te recomiendo que resinstalar el CLI de forma global.

in my case using @angular/cli 7.2.3

ng new angular-7-test failed with error

Schematic input does not validate against the Schema: {"name":"angular-7-test","version":"7.2.3","routing":true,"style":"scss"}
Errors:

  Data path ".name" should match format "html-selector".

ng new angular7testsuccess

I had the same error when I used underscores in the new app name instead of hyphens: npm new my_new_app >>> Fails npm new my-new-app >>> Succeeds

So it was the underscores. This worked for me. Thanks! (Still, it’s strange)

Hi, For resolve this error uninstall @schematics/angular package or remove @schematics directory from node_modules directory then install a previous version. For example: npm i @schematics/angular@0.7.0 --save-dev

@SantiPrll Hello, thank you for help but now I get this error. ng new freeng --version=7.0.2 Could not find (undefined)

hi @alexeagle thanks,

i didn’t have a rogue angular.json file, but i did have a rogue ‘local’ install in my Projects folder, must of forgot the -g sometime previously.

Anyway, Seems to have been resolved by removing the unneeded node_modules folder.

HI, This issue may be resolved by applying the following command in cmd.

npm i @schematics/angular@latest --save-dev

after applying this no need to write version after angular 7 project name just write ng new ang-project-name

For me, before, I updated npm : “npm update” and after run : “ng new projetc-teste --version=7.3.6”

I was facing the same issue… The problem for me was , I was using an underscore when creating the directory name. I was using “ng new Test_Angular”. Then I changed it to “ng new Test-Angular” and it worked for me

using @SantiPrll comment it worked for me

I deleted the -3 at the end of my project name and then it worked. 😃

ng new my-project-3 ----> Doesn’t work ng new my-project-three ----> Works

3 things you should check if you face problem on ng new

1. check the directory name - should not have alphanumeric and special characters.
2. type ng --version in node cmd, check whether all package is clear without showing error on the package version or else install those packages.
3. if cmd shows error on @angular\cli then delete c:\users\username\Appdata\Roaming\npm\node_modules@angular\cli and then install it, it will work. if you feel appdata is missing in the folder then it is in hidden, u should do C: -> Organize -> Folder Options -> View -> Hidden files and folder -> Show hidden files…

Hope this will help you…

I’m closing this issue as the original issue has been resolved.