Counting to one is difficult

Running

FILE OPTFILE /conopt.opt/;
  PUT OPTFILE;
  PUTCLOSE 'lsismp = t' / 'lstria = t';
VARIABLES X;
EQUATIONS E1;
E1 ..  X * 1E-12 =E= 1E-10;
MODEL M /ALL/ ;
M.OPTFILE = 1;
X.L = 1E+2; SOLVE M USING CNS;

gives the error message:

 ** Error in Square System: The number of non-fixed variables (1)
    is not equal to the number of equations (1)