i see this in the .txt file

NTeleportation.cs(2804,33): warning CS0219: The variable `w' is assigned but its value is never used
NTeleportation.cs(70,35): warning CS0169: The private field `Oxide.Plugins.NTeleportation.dataConvert' is never used
NTeleportation.cs(94,30): warning CS0414: The private field `Oxide.Plugins.NTeleportation.triggerLayer' is assigned but its value is never used

Those are warnings, not errors, and can be ignored.