[bugfix]Keep Compatible with 3.5.1 and before when select KotlinX.Serializable option fix#284

Author: wuseal

src/main/kotlin/wu/seal/jsontokotlin/model/IConfigManager.kt

@@ -86,9 +86,12 @@ interface IConfigManager {
     var targetJsonConverterLib: TargetJsonConverter
         get() = if (isTestModel) TestConfig.targetJsonConvertLib else {
             val value = PropertiesComponent.getInstance().getValue(TARGET_JSON_CONVERTER_LIB_KEY)
+            //Next step try to keep compatible with 3.5.1 and before version of plugin,
+            //Please see : https://github.com/wuseal/JsonToKotlinClass/issues/284
+            val compatibleValue = if (value =="Serilizable") "Serializable" else value
             try {
                 TargetJsonConverter.valueOf(
-                        value
+                        compatibleValue
                                 ?: TargetJsonConverter.None.name
                 )
             } catch (e: Exception) {