Contradiction with John 13:34
This verse encourages love and unity among people, which might seem contradictory to the cautioning against following others' paths in Proverbs 1:15.
John 13:34: A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another.
Contradiction with Romans 12:10
Emphasizing loving one another with brotherly affection and honoring each other could be seen as in contrast to the warning about consenting to others' ways in Proverbs 1:15.
Romans 12:10: [Be] kindly affectioned one to another with brotherly love; in honour preferring one another; [with...: or, in the love of the brethren]
Contradiction with Matthew 5:41
Advising going the extra mile with someone could contradict the advising to refrain from following potentially harmful paths in Proverbs 1:15.
Matthew 5:41: And whosoever shall compel thee to go a mile, go with him twain.
Contradiction with 1 Corinthians 9:22
Paul's willingness to be all things to all people for the sake of the gospel might contradict the advising not to walk in others' ways as in Proverbs 1:15.
1 Corinthians 9:22: To the weak became I as weak, that I might gain the weak: I am made all things to all [men], that I might by all means save some.