Because I hate it with a passion. Sitting here for hours waiting for my 2 uni teammates to show for an online meeting. We have a project thats due MONDAY and they've consistently missed the meetings we had scheduled over the last few weeks, it was uni holidays so I didn't expect miracles but out of 3 scheduled meetings I saw one team member ONCE.
As a result the project has had no work done on it and like I said, its due monday so here I am stuck with doing all the fucking work AGAIN.
Does this happen to anyone else or is it just me?

It is just you.

I'm an intrapersonal person myself, unless it's with people I know can actually get the job done.

Thankfully I'm now in a full time job, and people do pull their own weight where I work.
All I can recommend is making sure that you work with different people in the future, to avoid having to be stuck with all the hard graft.

I love group work. You don't need to do anything and the job still gets done.

While I do agree that groupwork can be a pain, it can actually also be very stimulating when the group is functioning properly. It looks like your group is as disfunctional as they can get, which indeed always ends up with the person with the highest sense of responsibility doing most/all of the work.
But also, in a way, it's just you. Of course I don't fully know your situation, but most of the time it just takes the right actions of one person to make a group work. When you sense the group is disfunctional, take up the position of the leader. Don't plan on doing everything 'as a group'. Except for brainstorming and planning most things should be done individually. Give people the responsibility on specific subtasks. That way it immediately becomes clear and provable when someone just isn't doing anything. It also improves the productivity of a group by leaps and bounds. (Ok, some tasks are hard to divide into subtasks. However, that just means that working in a group is not the most optimal way of tackling the problem. Your instructor choose the wrong format for the course. Notify him/her of this fact).
I've had some pretty bad experiences with groupwork, but I've had positive ones as well. The positive ones are either with a group of equally competent and motivated individuals (very rare), or with a group where someone takes up the position of a leader. Also remember that in the worst case scenario you can always notify your instructor. If you really did all the work, you should also get all the credit.

I know the feeling when it comes to Uni. Back when I was studying, we had a group of four. With the class was split into 4 groups of 4. Well, a week before the first main assignment, one of our team left to make a group of 5 and 3 weeks later, another left the course. So it was just the two of us struggling to get it done; our instructor was not open to the suggestion of balancing things out a bit.
Of course, we also lived over 80 kms apart, meeting up often was not much of an option. So all communication was done via e-mail and skype.
Similar cases back in 2000 during college. Groups would always have at least one person who made no real effort.
Like some others have mentioned: Grab the credit for yourself, don't let them leech off you.

I guess I'm one of the lucky ones. Back when I was studying, I had a great group to work with. One of them rented a basement in the city where he had a sound studio and his girlfriend had a glass workshop. There were additional rooms down there, so we set up tables, chairs, two servers and a network, and turned the place into a full-fledged project office. We spent lots of evenings and weekends down there, working on our project. Occasionally, we'd take a break and play a game for a while, usually Ports Of Call.
It was a great setup, until the hard drive in one of the servers committed harakiri around 1:30 am on the day the project was due at 10:00 am. The resulting loss of data and time meant that the main program loop on the client side (we were making a distributed database system from scratch on a linux platform) ended up consisting of one single huge function, with 13 nested scopes. Of course, there was a bug in it, caused by a wrongly placed bracket, which we discovered only when we tried to demonstrate the program to our teacher. It was hell to sort out.

I like having people around me at times, but group working is not one of them. It's not that I can't lead a project, but I prefer going solo. The grading system sometimes can be rather unfair too. People who don't put in as much effort *ahemlukazthegreatahem* may get the same grade as those who do most of the work

Take the hard line and "tell on them".
This isn't primary school, this is University. If they aren't doing shit then they don't deserve to pass - and you certainly don't deserve to fail / receive a crap grade because of somebody elses lazy arse.
When I was at Uni this kind of thing happened rarely - but I know of occurences where persons have been singled out to fail a project / cource because their groupmates in the end saw no other option than complain about them to the professors / teaching assistants.

This isn't primary school, this is University. If they aren't doing shit then they don't deserve to pass - and you certainly don't deserve to fail / receive a crap grade because of somebody elses lazy arse.
Indeed. If they aren't pulling their weight, they don't deserve anything less. Especially if it's affecting your ability to do the work through no fault of your own. Luckily for me, the course I did at university never relied on group work at all.

Unfortunately this is my IT project which is a compulsory part of the degree (arguably the key subject) and as much as I'd like to, I'm not allowed to do it alone. If I could I'd have been programming the network designer expert system that I originally planned and wouldn't have had to listen to the "but we're networking students not software design students" complaints.
As it is we're designing the networking layout for a new school within campus which is a pretty shitty project upon investigation since most of the hard work is handled by the campus IT department.
The worst part is that I'm project manager so it looks like I can't manage anything if people don't bother to show up. The thing that gets me the most is that I've worked with one of the guys in the project before and he's the best partner I've ever had, in fact in the other projects we've had to do, it was him and I doing all the work but this time he's just slacking off.
They're sure as hell not getting credit if I have to do everything myself and they've got a severely worded email waiting on the off chance either of them ever bother to check their email and I've explained some of the difficulties to my lecturer. I'm sure its not a coincidence that the peer evaluation form was just posted on our subject website...

I love group work. If you drag they can carry you, and you can then make it up further down the line. If you get shitty groupmates though, that sucks donkey balls.

People need to be paid to care, it seems. Haha.

Don't really like group work myself, because I prefer doing things the way I want to. I know my own qualities, and the consistency in it, so I know what I can expect of the final product.
Of course, it depends on what I'm doing. If it's physical work, I prefer having group of people, because I'm a lazy bastard, but in not so physical work, which might require some creativity, I prefer working on my own, maybe asking for some advice or something here and there, though that is usually kept to my own rummaging of the Internet.