Struggling with Chess Position Trainer

Hello Everyone, 

I recently purchased Chess Position Trainer and exploring it. I am having some issues with it. 
While trying to import opening pgn files it shows following message:

" You are about to import 330170 positions.A single topic/opening should rarely cover more than 10000 positions (in many cases less than 3000 is enough).Only import PGN files from an opening or repertoire ebook. Do not import a collection of games where no selection of candidate moves has been done yet.Otherwise you will have to manually update thousands of positions to define for all positions where your side has to move, which candidate move is your first choice."

I downloaded some PGN files for various openings from internet but they all are having this issue. I tried reducing the number of moves to import to 20 also but still the number of positions were too high.

So my question is, where can I get such opening ebooks that will work for Chess Position Trainer. I want to build a very solid and deep repertoire (25+ moves).

Kindly help me out with this.

PS: Please don't judge me by my games. I mostly play on my computer and chess24.

regards
Shashank

Yeah I just posted a similar question (in For Beginners) but not specific to this one program.

https://www.chess.com/forum/view/for-beginners/better-computer-resources-how-to-use-which-ones

Looking forward to advice

Hi all,

Please tell me which one is better for preparing repertoire chess base or chess position trainer

Hi

I had the same problem. I create pgn files with polyglot_tolerant from the bin book elo2500.bin that is part of ProDeo292.
The files after conversion are called cerebellum-white and cerebellum_black.
If I tried to import the complete games from the pgn cerebellum-white.pgn cpt crached.
If I import only 36 ply it works fut it takes about a half an hour on my pc.

I have a question for other cpt users as well. I should be possible to mark a positions as Not Comlete, or Unclear, or New, ect. And afterwards jump to these positions.

I have tried to mark some positions as Not Comlete. Afterwards I tried to jump to these Not Comlete marked positions but cpt didn't find them.

Maybe I do something wrong?