Question: Cannot find info on this error...

I am trying to solve this ode numerically in Maple 11.

c:=3;

ode1 := (diff(y(x), x))^2+4*c*(diff(y(x), x))+4*c^2*y(x)/(1-x^2);

 

dsn3 := dsolve({ics, ode1}, numeric);

 

But I get the following error:

 

Error, (in DEtools/convertsys) unable to convert to an explicit first-order system

 

What does this error mean?  The function y(x) is valid on {0,1}

 

Thanks.

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