syms in MATLAB 2014a

Hello, I am new to matlab, and have downloaded the 2014a-version. When i try to use the syms command I get a

Warning: Explicit solution could not be found. 
> In solve at 179

My code looks like this (it should be right, it works for the entire rest of my modelling class..)

clc
clear all
close all

syms R C P r K bc eps dc bp dp

sol1 = solve([r*(1-R/K)*R-bc*C*R==0, ...
    eps*bc*R*C - dc*C==0], [R C])

sol2=solve([r*(1-R/K)*R-bc*C*R==0, ...
    eps*bc*R*C - bp*P*C==0, ...
    eps*bp*C*P - dp*P==0],[R C P])

and I get

sol1 =

[ empty sym ]

Warning: Explicit solution could not be found. 
> In solve at 179 

sol2 =

[ empty sym ]

Can anyone see what mistake I have done, or guide me to wether I should just get the 2015 version instead?

Thank you very much in advance.

Matilde

[Star Strider]

You only included part of your code. You’re solving for three (of 10) variables, but how many equations do you have? If all your equations are linear, are they linearly independent?