error TS2415

[bhaskarAcharya]

I'm Getting this issue while i start angular with " npm start" inside "Angular-2-Final-Template" using command prompt, please guide me to solve this.
Thanks in advance

Class 'Subject' incorrectly extends base class 'Observable'.
Types of property 'lift' are incompatible.
Type '<T, R>(operator: Operator<T, R>) => Observable' is not assignable to type '(operator: Operator<T, R>) => Observable'.
Type 'Observable' is not assignable to type 'Observable'.
Type 'T' is not assignable to type 'R'.

[YamunaVeeranna1]

Fixed by updating RxJS to 5.4.2

[yourchoice]

Yes, same for me