Internal compiler error. See the console log for more information. output was:
Unhandled Exception: System.TypeLoadException: Could not load type 'UnityViconInterface.ViconInterface' from assembly 'UnityViconInterface, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.

  at (wrapper managed-to-native) System.MonoType:GetMethodsByName (string,System.Reflection.BindingFlags,bool,System.Type)

  at System.MonoType.GetMethods (BindingFlags bindingAttr) [0x00000] in <filename unknown>:0

  at Mono.CSharp.MemberCache.AddMethods (BindingFlags bf, System.Type type) [0x00000] in <filename unknown>:0

  at Mono.CSharp.MemberCache.AddMethods (System.Type type) [0x00000] in <filename unknown>:0

  at Mono.CSharp.MemberCache..ctor (IMemberContainer container) [0x00000] in <filename unknown>:0

  at Mono.CSharp.TypeHandle..ctor (System.Type type) [0x00000] in <filename unknown>:0

  at Mono.CSharp.TypeHandle.GetTypeHandle (System.Type t) [0x00000] in <filename unknown>:0

  at Mono.CSharp.TypeHandle.GetMemberCache (System.Type t) [0x00000] in <filename unknown>:0

  at Mono.CSharp.TypeManager.MemberLookup_FindMembers (System.Type t, MemberTypes mt, BindingFlags bf, System.String name, System.Boolean& used_cache) [0x00000] in <filename unknown>:0

  at Mono.CSharp.TypeManager.RealMemberLookup (System.Type invocation_type, System.Type qualifier_type, System.Type queried_type, MemberTypes mt, BindingFlags original_bf, System.String name, IList almost_match) [0x00000] in <filename unknown>:0

  at Mono.CSharp.TypeManager.MemberLookup (System.Type invocation_type, System.Type qualifier_type, System.Type queried_type, MemberTypes mt, BindingFlags original_bf, System.String name, IList almost_match) [0x00000] in <filename unknown>:0

  at Mono.CSharp.Expression.MemberLookup (Mono.CSharp.CompilerContext ctx, System.Type container_type, System.Type qualifier_type, System.Type queried_type, System.String name, MemberTypes mt, BindingFlags bf, Location loc) [0x00000] in <filename unknown>:0

  at Mono.CSharp.Expression.MemberLookupFinal (Mono.CSharp.ResolveContext ec, System.Type qualifier_type, System.Type queried_type, System.String name, MemberTypes mt, BindingFlags bf, Location loc) [0x00000] in <filename unknown>:0

  at Mono.CSharp.New.DoResolve (Mono.CSharp.ResolveContext ec) [0x00000] in <filename unknown>:0

  at Mono.CSharp.Expression.Resolve (Mono.CSharp.ResolveContext ec, ResolveFlags flags) [0x00000] in <filename unknown>:0

  at Mono.CSharp.Expression.Resolve (Mono.CSharp.ResolveContext ec) [0x00000] in <filename unknown>:0

  at Mono.CSharp.Assign.DoResolve (Mono.CSharp.ResolveContext ec) [0x00000] in <filename unknown>:0

  at Mono.CSharp.SimpleAssign.DoResolve (Mono.CSharp.ResolveContext ec) [0x00000] in <filename unknown>:0

  at Mono.CSharp.Expression.Resolve (Mono.CSharp.ResolveContext ec, ResolveFlags flags) [0x00000] in <filename unknown>:0

  at Mono.CSharp.Expression.Resolve (Mono.CSharp.ResolveContext ec) [0x00000] in <filename unknown>:0

  at Mono.CSharp.ExpressionStatement.ResolveStatement (Mono.CSharp.BlockContext ec) [0x00000] in <filename unknown>:0

  at Mono.CSharp.StatementExpression.Resolve (Mono.CSharp.BlockContext ec) [0x00000] in <filename unknown>:0

  at Mono.CSharp.Block.Resolve (Mono.CSharp.BlockContext ec) [0x00000] in <filename unknown>:0

  at Mono.CSharp.ToplevelBlock.Resolve (Mono.CSharp.FlowBranching parent, Mono.CSharp.BlockContext rc, Mono.CSharp.ParametersCompiled ip, IMethodData md) [0x00000] in <filename unknown>:0