In your notebook that you attached, thank you for that, would be impossible to help otherwise,
1: You have M[r] and P[r] and R[r] but you are not solving for those and have not defined those.
2: In eq3 you use := and = which should perhaps be = and ==.
3: eq1 doesn't appear to include a derivative, but I don't know what R[r] is.
4: eq2 has rphi[r] which should probably be r*phi[r] and rnu'[r] should probably be r*nu'[r]
5: eq4 has rphi[r] which should probably be r*phi[r]
6: In NDSolve you have phi'[0]=1 which should probably be phi'[0]==1
See if you can fix all those and attach your new improved notebook to the bottom.
With that we can start looking for the next level of problems to work on