Angular compilation fails --- Can't resolve all parameters for html2canvas: (?, ?)

[specialsagar]

• You are using the latest version
• You are testing using the non-minified version of html2canvas and checked any potential issues reported in the console

Bug reports:

Running into compilation issue for angular 8.
When I run unit testing for my component, it gives the following error:-

	Failed: Can't resolve all parameters for html2canvas: (?, ?).
	error properties: Object({ ngSyntaxError: true })
	Error: Can't resolve all parameters for html2canvas: (?, ?).
	    at syntaxError (http://localhost:9876/_karma_webpack_/node_modules/@angular/compiler/fesm2015/compiler.js:2175:1)
	    at CompileMetadataResolver._getDependenciesMetadata (http://localhost:9876/_karma_webpack_/node_modules/@angular/compiler/fesm2015/compiler.js:20401:1)
	    at CompileMetadataResolver._getTypeMetadata (http://localhost:9876/_karma_webpack_/node_modules/@angular/compiler/fesm2015/compiler.js:20296:1)
	    at CompileMetadataResolver._getInjectableTypeMetadata (http://localhost:9876/_karma_webpack_/node_modules/@angular/compiler/fesm2015/compiler.js:20514:1)
	    at CompileMetadataResolver.getProviderMetadata (http://localhost:9876/_karma_webpack_/node_modules/@angular/compiler/fesm2015/compiler.js:20523:1)
	    at providers.forEach (http://localhost:9876/_karma_webpack_/node_modules/@angular/compiler/fesm2015/compiler.js:20461:1)
	    at <Jasmine>
	    at CompileMetadataResolver._getProvidersMetadata (http://localhost:9876/_karma_webpack_/node_modules/@angular/compiler/fesm2015/compiler.js:20421:1)
	    at CompileMetadataResolver.getNgModuleMetadata (http://localhost:9876/_karma_webpack_/node_modules/@angular/compiler/fesm2015/compiler.js:20148:1)
	    at JitCompiler._loadModules (http://localhost:9876/_karma_webpack_/node_modules/@angular/compiler/fesm2015/compiler.js:25824:1)

The code I'm using for my component:-

import html2canvas from 'html2canvas';

...

onSave() {
      html2canvas(document.body, <any>options).then(canvas => {
        canvas.id = 'bs-printed-canvas';
        document.getElementById('canvas-container').appendChild(canvas);
        this.generatePDF(canvas.toDataURL('image/png'));
      });
}

I have also tried using below ways of loading the library but still gives the same error.

import * as  html2canvas from 'html2canvas';

Specifications:

• html2canvas version tested with: 1.0.0.rc7
• Browser & version: Chrome - Version 88.0.4324.104
• Operating system: Windows 10