According to Paul's letters, the main disagreement Paul had was over whether Gentiles should become Jewish converts, including being circumcised, instead of just being God-fearers, a category already recognized in Judaism as long as they abided the Noahide covenant. Paul didn't think becoming Jewish mattered, because Jesus would return soon and everything would be transformed, including those in Christ.
There isn't any indication as to whether James, Peter, John (the Three Pillars in Jerusalem) disagreed with Paul over his Christology or eschatological expectations (Jesus was probably an apocalyptic prophet like John the Baptist). Paul says Jesus first appeared to them, so they likely began believing God had raised him to heaven before Paul. Paul says he persecuted their movement at first, likely because he found it offensive. A risen crucified messiah would be offensive to a Pharisee.
Paul further says they had their gospel (literally good news) for Jews and he was sent to Gentiles, but again there isn't any indication over whether there were substantive disagreements beyond whether Gentiles needed to become Jewish. That and some people clearly questioned Paul's claim to apostleship, particularly in relationship to other apostles, especially in Jerusalem.
What developed after the destruction of the Temple with the proto-orthodox, Ebionites and Gnostic Christianity is not necessarily a reflection of Paul's conflict. Those were further developments.
There isn't any indication as to whether James, Peter, John (the Three Pillars in Jerusalem) disagreed with Paul over his Christology or eschatological expectations (Jesus was probably an apocalyptic prophet like John the Baptist). Paul says Jesus first appeared to them, so they likely began believing God had raised him to heaven before Paul. Paul says he persecuted their movement at first, likely because he found it offensive. A risen crucified messiah would be offensive to a Pharisee.
Paul further says they had their gospel (literally good news) for Jews and he was sent to Gentiles, but again there isn't any indication over whether there were substantive disagreements beyond whether Gentiles needed to become Jewish. That and some people clearly questioned Paul's claim to apostleship, particularly in relationship to other apostles, especially in Jerusalem.
What developed after the destruction of the Temple with the proto-orthodox, Ebionites and Gnostic Christianity is not necessarily a reflection of Paul's conflict. Those were further developments.