Some Challenges during Angular 10 to 14 Version migration

ACHARYA A K
Apr 19, 2023
  1. requires error
 <div class="row">
<div class="col-5">
<label for="email">Email *</label>
<input
type="text"
class="form-control"
formControlName="email"
id="email"
placeholder="Client email"
/>

<div
[class.d-block]="
clientForm.controls['email'] &&
clientForm.controls['email'].errors &&
clientForm.controls['email'].errors.required &&
showErrorRequired
"
class="invalid-feedback"
>
Your email is required.
</div>
</div>
</div>

For fixing it required added at bracket notation

 <div class="row">
<div class="col-5">
<label for="email">Email *</label>
<input
type="text"
class="form-control"
formControlName="email"
id="email"
placeholder="Client email"
/>

<div
[class.d-block]="
clientForm.controls['email'] &&
clientForm.controls['email'].errors &&
clientForm.controls['email'].errors['required'] &&
showErrorRequired
"
class="invalid-feedback"
>
Your email is required.
</div>
</div>
</div>

2. event.target.files files doesn’t exist

problem code

 <input
type="file"
#fileDropRef
multiple
id="fileDropRef"
(change)="fileBrowseHandler($any($event).target.files)"
/> untypeForms Nestesd Forms

Solution code

$any($event).target.files)

3. Type ‘AbstractControl<any, any>’ is missing the following properties from type ‘FormGroup<any>’: controls, registerControl, addControl, removeControl, and 2 more.ngtsc(2740)

solved using :

in tsconfig make Strictemplate false.

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