The pcap file size is about 300M, Error in rep(1:N, sapply(ngrams[-total], length)) : invalid 'times' argument

[higher75]

I have tried many different network protocols. Each individual protocol is a pcap file, but the following errors will occur. Can you help me.. thank you..

1. os: ubuntu20.04
2. Language: python3.6.9
3. Execute command: python3 pulsar.py -l -p icmp3.pcap
4. Packet size: ~300M
5. Data packets are from the same original address to the same destination address
6. The error is as follows:

data = loadPrismaData(capture_dir)
Reading data...
Splitting ngrams...
Calc indices...
Setup matrix...
Error in rep(1:N, sapply(ngrams[-total], length)) :
invalid 'times' argument
Calls: loadPrismaData -> readPrismaInput -> readFSally -> sparseMatrix
Execution halted

[hgascon]

That seems like an error in the Prisma module (https://github.com/tammok/PRISMA/blob/a48624f5102875984975ce99ddd687e0ddd6dee5/R/prisma.R#L60). Maybe you can debug the previous lines or check the values of the variables involved (indices, ngrams...) ?