Ansoft Maxwell, "cannot apply Current Excitation to non planar entity" error

[hsnprvz]

Can I give you file? If you can consider once more?

 

[gerbi]

Nope. Try adding some wires to that coil which would act like a power supply.

 

[hsnprvz]

Okay thank you for your kind responses.

 

[Tarek]

ok now i have another problem,
Maxwell3DDesign1 (Magnetostatic)
[info] Parametric Analysis on ParametricSetup1 has been started. (1:08:33 jun 01, 2012)
[info] A variation (kut='0deg') has been requested on machine Local Machine (1:08:33 jun 01, 2012)
[error] Could not preserve critical nodes. (1:21:22 jun 01, 2012)
[info] A variation (kut='5deg') has been requested on machine Local Machine (1:21:22 jun 01, 2012)
[error] Could not preserve critical nodes. (1:35:03 jun 01, 2012)
[info] A variation (kut='10deg') has been requested on machine Local Machine (1:35:03 jun 01, 2012)
[error] Parametric Analysis failed - User aborted. (1:45:30 jun 01, 2012)
what does it mean critical nodes?

please, how did you solve this problem?