purple science can't create pack

[grifter1]

I All

Just started playing factorio and loving it i am hooked
But i am having problems getting my purple science going i have the 5dim's mod pack runing and using 0.12.2 of both
I have the alien bits from killing the biter nests but cant get the purple pack to show in a assembling machine
For that matter it isnt in my players assembling slot i have completed lots of the red and blue science expecting it to open up and no good as this is the first time i have tryed to get the purple pack I'm assuming I am just missing sumthig
The only place the purple thing shows is in the logistics part of a smart inserter

I can take picks of resurch im missing or what ever you need
If you can help i will be very grateful

[DaveMcW]

Research Alien Technology.

[grifter1]

Research Alien Technology.

Thanks
Didn't have rockets
Struggles of a new game all good now