NGX-CUSTOM-VALIDATOR **NOT WORK** After Upgrade Angular Version

[kuth-chi]

IMPORTANT:
After I have upgrade Angular CLI version from 11 to 12
There are issue below
`
-```
_Namespace '"***/node_modules/ngx-custom-validators/node_modules/@an
gular/core/core"' has no exported member 'ɵɵNgModuleDeclaration'.

4257 static ɵmod: ɵngcc0.ɵɵNgModuleDeclaration<ɵInternalFormsSharedModule, [typeof ɵNgNoValidate, typeof NgSelectOption, typeof ɵNgSelectMultipleOption, typeof DefaultValueAccessor, t
ypeof NumberValueAccessor, typeof RangeValueAccessor, typeof CheckboxControlValueAccessor, typeof SelectControlValueAccessor, typeof SelectMultipleControlValueAccessor, typeof RadioContro
lValueAccessor, typeof NgControlStatus, typeof NgControlStatusGroup, typeof RequiredValidator, typeof MinLengthValidator, typeof MaxLengthValidator, typeof PatternValidator, typeof Checkb
oxRequiredValidator, typeof EmailValidator], never, [typeof ɵNgNoValidate, typeof NgSelectOption, typeof ɵNgSelectMultipleOption, typeof DefaultValueAccessor, typeof NumberValueAccessor,
typeof RangeValueAccessor, typeof CheckboxControlValueAccessor, typeof SelectControlValueAccessor, typeof SelectMultipleControlValueAccessor, typeof RadioControlValueAccessor, typeof NgCo
ntrolStatus, typeof NgControlStatusGroup, typeof RequiredValidator, typeof MinLengthValidator, typeof MaxLengthValidator, typeof PatternValidator, typeof CheckboxRequiredValidator, typeof
EmailValidator]>;
?_

• _Namespace '"***/node_modules/ngx-custom-validators/node_modules/@an
  gular/core/core"' has no exported member 'ɵɵInjectorDeclaration'.

4258     static ɵinj: ɵngcc0.ɵɵInjectorDeclaration<ɵInternalFormsSharedModule>;`


**Ngx-Custom-Validator version 11.0.1**

  - Not working on Angular CLI version 12

**Expected/desired behavior**

  - 

**Environment information**

  - OS: 
  - Angular Version: 
  - Typescript version:
  - npm version: 
  - Node Version: 

**Other information**

[mvdcreativo]

What I did in the meantime to not update the library to ng12 was to update the library's own package.json:
"@angular/common": "~12.1.1",
"@angular/compiler": "~12.1.1",
"@angular/core": "~12.1.1",
"@angular/forms": "~12.1.1",
"@angular/platform-browser": "~12.1.1",
"@angular/platform-browser-dynamic": "~12.1.1",

"peerDependencies": {
"@angular/common": "~12.1.1",
"@angular/core": "~12.1.1",
"@angular/forms": "~12.1.1"
},

Run npm install and it worked

[davifsroberto]

it worked here: https://stackoverflow.com/questions/68220000/how-to-fix-ngx-custom-validator-in-angular-12/68746402#68746402