Datepicker error when builds app Angular

[Faqtt0]

The component works properly, but when you runs build the angular, you can't see the values, just letters on the datepicker.
My version "ngx-bootstrap": "^3.1.1",
Build image 1

Build image 2

In the html file
<input #dtLanc="bsDatepicker" formControlName="data" placeholder="Data Lançamento" class="form-control text-center" bsDatepicker [maxDate]="maxDate">

component
`import {BsDatepickerConfig, BsDatepickerDirective, BsLocaleService} from 'ngx-bootstrap';
import {defineLocale} from 'ngx-bootstrap/chronos';
defineLocale('pt-br', ptBrLocale);
....
@ViewChild(BsDatepickerDirective) datepicker: BsDatepickerDirective;
locale = 'pt-br';
colorTheme = 'theme-blue';
bsConfig: Partial;
....
maxDate = new Date();

.....
ngOnInit() {
this.initForm();
this.localeService.use(this.locale);
this.bsConfig = Object.assign({}, {containerClass: this.colorTheme});
}
.....
private initForm() {
this.lancForm = this.formBuilder.group({
id: [0],
emp: ['', [Validators.required, CustomValidators.validateAutoCompletePrime('empresa')]],
/emp: [{
empresa: [null]/!,
nome: [null],!/
}, Validators.required],/
data: [new Date(), Validators.required],
valor: ['0.0', Validators.required],
usuario: ['', [Validators.required, CustomValidators.validateAutoCompletePrime('userId')]]
});
}
`
package.json

"dependencies": { "@amcharts/amcharts4": "^4.0.0-beta.39", "@angular/animations": "^6.0.3", "@angular/common": "^6.0.3", "@angular/compiler": "^6.0.3", "@angular/core": "^6.0.3", "@angular/forms": "^6.0.3", "@angular/http": "^6.0.3", "@angular/platform-browser": "^6.0.3", "@angular/platform-browser-dynamic": "^6.0.3", "@angular/router": "^6.0.3", "@fortawesome": "latest", "@fortawesome/fontawesome-free": "^5.4.2", "bootstrap": "^4.1.3", "chart.js": "^2.7.2", "core-js": "^2.5.4", "deep-equal": "^1.0.1", "font-awesome": "^4.7.0", "jquery": "^3.3.1", "jwt-decode": "^2.2.0", "ngx-bootstrap": "^3.1.1", "ngx-device-detector": "^1.3.0", "popper.js": "^1.14.3", "primeicons": "^1.0.0-beta.10", "primeng": "^6.1.4", "rxjs": "^6.0.0", "zone.js": "^0.8.26" }

ng build --prod --base-href=/apptest/

No build image 1

No build image 2

[valorkin]

@Faqtt0 we will need some small repo to reproduce please
is there are any errors in the console?
@Domainv looks serious

[pehu71]

Hi everyone, since I'm facing the same issue at work, I made the repro-repo:
https://github.com/pehu71/issue4975-demo
notes written in README.md.
In my opinion the UglifyJSPlugin is the culrpit, but it's just first feel.

[Domainv]

@valorkin It's same issue with #4752
The problem occurs when buildOptimizer is enabled.
I am working on avoiding the problem

[Domainv]

@Faqtt0 For now, a temporary solution is a turn off buildOptimizer.
Or downgrade from 3.1.1 to 3.0.1

[Faqtt0]

Sorry to take a long time to answer. @valorkin it hasn't any error in the console.
I use buildOptimizer = false.
@Domainv I'll downgrade to test it. Thanks a lot.

[Faqtt0]

@Domainv i made the downgrade. But it didn't work. I've changed the version in "package.json" and deleted the folder node_modules. After that, i've made the command "npm install" in the console.

[Domainv]

@Faqtt0 need some small repo to reproduce please

Because problem in this repo https://github.com/pehu71/issue4975-demo @pehu71
solved by switching buildOptimizer to false

[Faqtt0]

@Domainv I've made what you asked
https://github.com/Faqtt0/ngxboot-error-datepicker
this project keeps the error with version 3.0.1 with ng build --prod --base-href=/teste/
Just only when disable buildOptimizer works.

[Domainv]

@Faqtt0
You don't have any ngx-bootstrap versions in package.json
and any using of datepicker in the repo

[Faqtt0]

@Domainv
I'm so sorry. Now it's with all dependencies. Like the other project. i've Commited the other files.

[Domainv]

@Faqtt0 "ngx-bootstrap": "^3.0.1" change to "ngx-bootstrap": "3.0.1"
then npm install
and it will start work coorectly

[Faqtt0]

@Domainv thanks a lot.
The first time with npm install it didn't work. Then, i had to remove node_modules, execute npm install e clear again the browser.