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• Feature: Eigenvalue Solver 1 (sol1/e1) Division by zero.
  • Function: / Failed to evaluate variable.
  • Variable: f0
  • Defined as: c_const/lambda Failed to evaluate variable.
  • Variable: comp1.ewbe.omega
  • Defined as: (2*pi)*f0 Failed to evaluate variable.
  • Variable: comp1.ewbe.iomega
  • Defined as: i*comp1.ewbe.omega Failed to evaluate expression.
  • Expression: dvol_spatial*((-mu0_const)*((((-(comp1.ewbe.alphaport_1*comp1.ewbe.ny))*(-((1/mu0_const)*((-comp1.ewbe.murinvxx)*(comp1.ewbe.alphaport_1*comp1.ewbe.ny)))))-((-(comp1.ewbe.alphaport_1*(-comp1.ewbe.nx)))*((1/mu0_const)*((-comp1.ewbe.murinvyy)*(comp1.ewbe.alphaport_1*(-comp1.ewbe.nx))))))+(comp1.ewbe.iomega*((comp1.ewbe.iomega*epsilon0_const)*comp1.ewbe.epsilonrzz)))) Failed to evaluate Jacobian of expression.
  • Expression: dvol_spatial*((-mu0_const)*((((-comp1.ewbe.dHdtx_1)*(-(comp1.ewbe.alphaport_1*comp1.ewbe.ny)))-(comp1.ewbe.dHdty_1*(-(comp1.ewbe.alphaport_1*(-comp1.ewbe.nx)))))+(comp1.ewbe.iomega*comp1.ewbe.Jz_1))) Failed to evaluate Jacobian of expression.
  • Expression: (-mu0_const*(-comp1.ewbe.dHdtx_1*(test(comp1.ewbe.tcurlEbm1x)-comp1.ewbe.alphaport_1*(test(comp1.ewbe.tEbm1z)*comp1.ewbe.ny-test(comp1.ewbe.tEbm1y)*comp1.ewbe.nz)-test(comp1.ewbe.nebm1Tz)*comp1.ewbe.ny+test(comp1.ewbe.nebm1Ty)*comp1.ewbe.nz)-comp1.ewbe.dHdty_1*(test(comp1.ewbe.tcurlEbm1y)-comp1.ewbe.alphaport_1*(-test(comp1.ewbe.tEbm1z)*comp1.ewbe.nx+test(comp1.ewbe.tEbm1x)*comp1.ewbe.nz)+test(comp1.ewbe.nebm1Tz)*comp1.ewbe.nx-test(comp1.ewbe.nebm1Tx)*comp1.ewbe.nz)-comp1.ewbe.dHdtz_1*(test(comp1.ewbe.tcurlEbm1z)-comp1.ewbe.alphaport_1*(test(comp1.ewbe.tEbm1y)*comp1.ewbe.nx-test(comp1.ewbe.tEbm1x)*comp1.ewbe.ny)-test(comp1.ewbe.nebm1Ty)*comp1.ewbe.nx+test(comp1.ewbe.nebm1Tx)*comp1.ewbe.ny)+comp1.ewbe.iomega*(comp1.ewbe.Jx_1*(test(comp1.ewbe.tEbm1x)+comp1.ewbe.nx*test(comp1.ewbe.nebm1))+comp1.ewbe.Jy_1*(test(comp1.ewbe.tEbm1y)+comp1.ewbe.ny*test(comp1.ewbe.nebm1))+comp1.ewbe.Jz_1*(test(comp1.ewbe.tEbm1z)+comp1.ewbe.nz*test(comp1.ewbe.nebm1)))))*(dvol_spatial)

I got this error while solving the directional coupler problem. I used the same file as published in the comsol applications gallery , just changed the index of material.