Convert unresolved type reference in Union to obj

src/Glutinum.Converter/Read.fs

@@ -359,7 +359,15 @@ let rec private readUnionTypeCases
 
                     readNode checker declaration |> List.singleton |> Some
 
-            | None -> failwith "readUnionTypeCases: Unsupported type reference"
+            | None ->
+                let typ = checker.getTypeOfSymbol symbol
+
+                if TypeFlags.hasFlag typ.flags Ts.TypeFlags.Any then
+                    GlueType.Primitive GluePrimitive.Any
+                    |> List.singleton
+                    |> Some
+                else
+                    failwith "readUnionTypeCases: Unsupported type reference"
 
         // else
         //     symbol.declarations

tests/specs/class/membersWithUnkownTypeReference.d.ts

@@ -0,0 +1,5 @@
+export class Dayjs {
+    constructor();
+
+    locale(preset: string | ILocale): Dayjs;
+}

tests/specs/class/membersWithUnkownTypeReference.fsx

@@ -0,0 +1,17 @@
+module rec Glutinum
+
+(***)
+#r "nuget: Fable.Core"
+(***)
+
+open Fable.Core
+open System
+
+[<Erase>]
+type Exports =
+    [<Import("Dayjs", "module"); EmitConstructor>]
+    static member Dayjs () : Dayjs = nativeOnly
+
+[<AllowNullLiteral>]
+type Dayjs =
+    abstract member locale: preset: U2<string, obj> -> Dayjs