Some warnings when I compile with tsc

[Genie23]

I use Angular4-Color-Picker, and I have some warnings when I compile my typescript scripts :

js/node_modules/angular4-color-picker/lib/color-picker.directive.ts(86,63): error TS2345: Argument of type 'ComponentFactory | undefined' is not assignable to parameter of type 'Compone
ntFactory'.
Type 'undefined' is not assignable to type 'ComponentFactory'.
js/node_modules/angular4-color-picker/lib/color-picker.service.ts(52,13): error TS2454: Variable 'h' is used before being assigned.
js/node_modules/angular4-color-picker/lib/color-picker.service.ts(55,25): error TS2454: Variable 'h' is used before being assigned.
js/node_modules/angular4-color-picker/lib/color-picker.service.ts(89,25): error TS2454: Variable 'r' is used before being assigned.
js/node_modules/angular4-color-picker/lib/color-picker.service.ts(89,28): error TS2454: Variable 'g' is used before being assigned.
js/node_modules/angular4-color-picker/lib/color-picker.service.ts(89,31): error TS2454: Variable 'b' is used before being assigned.
js/node_modules/angular4-color-picker/lib/color-picker.service.ts(146,13): error TS2322: Type 'null' is not assignable to type 'Hsva'.
js/node_modules/angular4-color-picker/node_modules/@angular/core/src/change_detection/differs/default_iterable_differ.d.ts(2,22): error TS2420: Class 'DefaultIterableDifferFactory' incorrect
ly implements interface 'IterableDifferFactory'.
Types of property 'create' are incompatible.
Type '(trackByFn?: TrackByFunction | undefined) => DefaultIterableDiffer' is not assignable to type '{ (trackByFn?: TrackByFunction | undefined): IterableDiffer; (_c
dr?: ChangeDetectorRe...'.
Type 'DefaultIterableDiffer' is not assignable to type 'IterableDiffer'.
Types of property 'diff' are incompatible.
Type '(collection: NgIterable) => DefaultIterableDiffer | null' is not assignable to type '(object: NgIterable) => IterableChanges | null'.
Type 'DefaultIterableDiffer | null' is not assignable to type 'IterableChanges | null'.
Type 'DefaultIterableDiffer' is not assignable to type 'IterableChanges | null'.
Type 'DefaultIterableDiffer' is not assignable to type 'IterableChanges'.
Types of property 'forEachOperation' are incompatible.
Type '(fn: (item: IterableChangeRecord, previousIndex: number | null, currentIndex: number | null)...' is not assignable to type '(fn: (record: IterableChangeRecord<
any>, previousIndex: number, currentIndex: number) => void) =>...'.
Types of parameters 'fn' and 'fn' are incompatible.
Types of parameters 'previousIndex' and 'previousIndex' are incompatible.
Type 'number | null' is not assignable to type 'number'.
Type 'null' is not assignable to type 'number'.
js/node_modules/angular4-color-picker/node_modules/@angular/core/src/change_detection/differs/default_iterable_differ.d.ts(10,22): error TS2420: Class 'DefaultIterableDiffer' incorrectly
implements interface 'IterableChanges'.
Types of property 'forEachOperation' are incompatible.
Type '(fn: (item: IterableChangeRecord, previousIndex: number | null, currentIndex: number | null) =...' is not assignable to type '(fn: (record: IterableChangeRecord, previousInde
x: number, currentIndex: number) => void) => v...'.
Types of parameters 'fn' and 'fn' are incompatible.
Types of parameters 'previousIndex' and 'previousIndex' are incompatible.
Type 'number | null' is not assignable to type 'number'.
Type 'null' is not assignable to type 'number'.
js/node_modules/angular4-color-picker/node_modules/@angular/core/src/change_detection/differs/default_iterable_differ.d.ts(10,22): error TS2420: Class 'DefaultIterableDiffer' incorrectly
implements interface 'IterableDiffer'.
Types of property 'diff' are incompatible.
Type '(collection: NgIterable) => DefaultIterableDiffer | null' is not assignable to type '(object: NgIterable) => IterableChanges | null'.
Type 'DefaultIterableDiffer | null' is not assignable to type 'IterableChanges | null'.
Type 'DefaultIterableDiffer' is not assignable to type 'IterableChanges | null'.
Type 'DefaultIterableDiffer' is not assignable to type 'IterableChanges'.
Types of property 'forEachOperation' are incompatible.
Type '(fn: (item: IterableChangeRecord, previousIndex: number | null, currentIndex: number | null) =...' is not assignable to type '(fn: (record: IterableChangeRecord, pr
eviousIndex: number, currentIndex: number) => void) => v...'.
Types of parameters 'fn' and 'fn' are incompatible.
Types of parameters 'previousIndex' and 'previousIndex' are incompatible.
Type 'number | null' is not assignable to type 'number'.
Type 'null' is not assignable to type 'number'.

The compilation runs anyway