wrapping in a try catch

site/docs/web5/build/verifiable-credentials/fan-club-vc.mdx

@@ -308,7 +308,7 @@ Here's how the verifier can create the presentation definition, and validate tha
       language: 'JavaScript',
     },
     {
-      content: 'This returns an undefined result, but if unsuccessful, it will throw an error.',
+      content: 'If the validation is unsuccessful, `validateDefinition()` will throw an error.',
       language: 'Kotlin',
     }
   ]}

site/testsuites/testsuite-kotlin/src/test/kotlin/docs/web5/build/verifiablecredentials/FanClubVcTest.kt

@@ -109,8 +109,12 @@ internal class FanClubVcTest {
                 )
             )
         )
-
-        val definitionValidation = PresentationExchange.validateDefinition(presentationDefinition)
+        try {
+            PresentationExchange.validateDefinition(presentationDefinition)
+            println("Presentation Definition is valid!")
+        } catch (err: Exception) {
+            println("Presentation Definition is not valid: " + err.message)
+        }
         // :snippet-end:
         assertDoesNotThrow {PresentationExchange.validateDefinition(presentationDefinition)}
   }