Point out one if you will. Mind you, there are numerous doctrines from the RCC that are not found in scripture, but that's different than saying they "contradict the Bible".
--A priest, a sinful human being can determine penance for out sins. In I Jn 1:9 there is only forgiveness and cleansing from God, no penance.
--Taking the Lord's supper is closed to all non-Catholics.
---Mt 26:26--...Jesus took some bread and after a blessing He broke it and gave it to the
disciples... All Christisn are Jesus' disciples.
--Mary remained a virgin---Mt 13:55-56, Jn 7:3-5, Gal 1:18-19.
There is nothing wrong with having non-Biblical traditions as long as their is no penalty for noncompliance.
The pope on numerous occasions, including several before him, have made it abundantly clear that the RCC does not teach that they are the only Christian church, nor have they ever taught that one has to be a member of their church for the purpose of "salvation".
That simply is not true and your current pope reinforced it soon after taking office. I don't have time to find it this morning but if you google "pope says Protestant churches are not ral churches," you will find the article.
Here's from an official source:
The "Dogmatic Constitution on the Church - Lumen Gentium" (1964) is one of many documents to come out of the Second Vatican Ecumenical Council (often referred to as "Vatican II"). The Council was held in Rome between 1962 and 1965. Lumen Gentium" contains in its Chapter 1 an essay on "The Mystery of the church." Sections 14 to 16 describe the potential for salvation of:
Followers of the Catholic Church,
Members of other Christian denominations, and
Believers of non-Christian religions. -- http://www.religioustolerance.org/rcc_salv.htm
However, the RCC does teach that all churches that do not recognize and are not a part of the line of "apostolic succession" have a theological defect, however such a defect does not jeopardize one's salvation.
The is no Biblical evidence for "apostolic succession." This is plainly evidenced by the fact that even some called apostles in the Bible are not included in the Catholic list. Barnabus was an apostle(Acts 14:14). Is he on the list?
Those who reject the authority if the pope and Catholic theology are called heretics. Will they be saved?