since + present perfect tense

1. It's six weeks since I have recieved a message.

2. It's six years since I have recieved that message.

Number two sounds wrong to me as a non-native speaker because of the use of "that". How does it sound to a native speaker?

Sorry, I'm still trying to work my way through this.

I think if "that message" means "a similar message to the one I received six years ago," then present perfect is okay.  (I.e., you may have just received it again.)

It clears up a bit if you make it negative:

I haven't received a message since six weeks ago.  I haven't received that message since six years ago. 

In both cases the message may come.

Consider " a certain period of time " when you decide to use the present perfect tense. 
It has been a while since I have never eaten an apple = I haven't eaten an apple for quite a long time.    
It has been for a while since I have never argued with him= I haven't argued with him for a while.  
If you talk about what you did some time ago, you use simple past: 
It has been ages since I got my drivnig licence. But it has been ages since I haven't driven a car.      
To sum up, death, birthday, new year, a particular celebration, graduation etc. can't be involved in the context of "a certain period of time".   
My cousin Mary was born four months ago.   It has been four months since I didn't see her or it has been for months since she was born. (something happened some time ago)   It has been years since I haven't seen my cousin Mary ( Here, we are talking about a certain period of time)  
Don't worry, it takes time and practice to make a diffrence between them!

Hoa Thai

Hi Doll,

If you'll forgive my saying so, I believe you misused the word since as a time marker.

First of all, the statement “I have never eaten an apple” does not point to a specific time in the past. By itself, it means in your entire life since the day you were born till now. Therefore, “since I have never eaten an apple”  is awkward. Coupled that since clause with “It has been (a time period),” the entire sentence is not sound.

In all grammar lessons that I have reviewed, including those are made available online, I have only seen examples with ‘present perfect + since + simple past’ structure when since is used as a time indicator.

Does that mean the structure ‘present perfect + since + present perfect’ is ungrammatical?

In my opinion, such a structure is not wrong when the second present perfect is used to denote a point of time in the past. The simple past marks a specific point in time, while the present perfect tense marks an unspecific time, respectively as in: ‘It’s been awhile since I last saw your smile’ and ‘It’s been awhile since I’ve seen your smile’. However, as we can see, both tenses deal with a discrete event.

Therefore, the following sentence is acceptable:
It’s been awhile since I’ve eaten Fat John’s pizza = I have not eaten Fat John’s pizza for awhile. (eating the last Fat John’s pizza is a discrete event)

And to me this sentence is odd:
It’s been 5 years since I’ve worked for my company. (working for a company is a continuous action / effort).

That said, to all learners, I would suggest that they use the simple past tense in the since clause to mark time, especially when they take tests.

Since I was not allowed to edit my old post, I would like to add that one of the discrete past-marking usages of the present perfect tense is for denoting an experience.