[AKHIL123]

hi i am trying to compile a udf for defining concentration.but while compiling its showing invalid else without if .could anyone help me to find error

if (FLUID_THREAD_P(t))
{
Thread *ppt=pt[phase_domain_index];
begin_c_loop(c,t)
{

/*m_f=species mass fraction of dispersed phase at actual time*/
m_f=C_YI(c,ppt,0);
C_UDMI(c,t,5)=m_f; if (C_VOF(c,ppt) !=0)
m_f=c_YI(c,ppt,0);
else
m_f=0;
C_UDMI(c,t,6)=m_f*1205/18; /*concentration kg/m3*/
m_f_c=m_f*1205/18; /*concentration kg/m3*/
C_UDMI(c,t,8)=m_f_c; /*concentration kg/m3*/
If (m_f_c>=C_sat)
m_f_c=C_sat;
else
m_f_c=m_f_c;
C_UDMI(c,t,9)=m_f_c;/*concentration kg/m3*/
If (C_VOF(c,ppt) !=0)
C_liq=m_f_c;/*C_liq is the concentration of o2 in the liquid phase at actual time*/
else
C_liq=0;
C_UDMI(c,t,10)=C_liq; /*C_liq kg/m3 the value of c in liquid at t*/
C_UDMI(c,t,11)=C_liq/18;/*C_liq kmol/m3 the value of c in liquid at t*/
}
end_c_loop (c,t)
}