[Python] I can't use opencv_traincascade . Is always the same error

This is the command that I try to do:

C:\Users\gamer\PycharmProjects\bsbot\opencv\build\x64\vc15\bin\opencv_traincascade.exe -data C:\Users\gamer\PycharmProjects\bsbot\capturing\cascade -vec C:\Users\gamer\PycharmProjects\bsbot\pos.vec -bg C:\Users\gamer\PycharmProjects\bsbot\capturing\neg.txt -w 24 -h 24 -numPos 900 -numNeg 2500 -numStages 10

And this is the output I get:

===== TRAINING 0-stage =====
<BEGIN
POS count : consumed 900 : 900
Train dataset for temp stage can not be filled. Branch training terminated.
Cascade classifier can't be trained. Check the used training parameters.

• I checked parameters
• I try it in newer and older version of opencv
• I deleted and created pos.vec again

There's just few information in the internet for my project, and I don't know what to do.

• 
  Some people saying there is a problem with 0-stage in some OpenCV version.
  
  
• 
  and there can be a problem about absolute path of neg.txt.
  

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