diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataIncrementalSerializer.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataIncrementalSerializer.kt
index cef61b79c44..2d994519398 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataIncrementalSerializer.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataIncrementalSerializer.kt
@@ -23,8 +23,9 @@ import org.jetbrains.kotlin.serialization.DescriptorSerializer
 class KlibMetadataIncrementalSerializer(
     languageVersionSettings: LanguageVersionSettings,
     metadataVersion: BinaryVersion,
-    skipExpects: Boolean
-) : KlibMetadataSerializer(languageVersionSettings, metadataVersion, skipExpects) {
+    skipExpects: Boolean,
+    allowErrorTypes: Boolean = false
+) : KlibMetadataSerializer(languageVersionSettings, metadataVersion, skipExpects, allowErrorTypes = allowErrorTypes) {
 
     fun serializePackageFragment(
         module: ModuleDescriptor,
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataMonolithicSerializer.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataMonolithicSerializer.kt
index c59863f4d84..969327b6a97 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataMonolithicSerializer.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataMonolithicSerializer.kt
@@ -23,8 +23,9 @@ class KlibMetadataMonolithicSerializer(
     languageVersionSettings: LanguageVersionSettings,
     metadataVersion: BinaryVersion,
     skipExpects: Boolean,
-    includeOnlyModuleContent: Boolean = false
-) : KlibMetadataSerializer(languageVersionSettings, metadataVersion, skipExpects, includeOnlyModuleContent) {
+    includeOnlyModuleContent: Boolean = false,
+    allowErrorTypes: Boolean = false
+) : KlibMetadataSerializer(languageVersionSettings, metadataVersion, skipExpects, includeOnlyModuleContent, allowErrorTypes) {
 
     private fun serializePackageFragment(fqName: FqName, module: ModuleDescriptor): List<ProtoBuf.PackageFragment> {
 
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataSerializer.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataSerializer.kt
index b67c21f1b7a..2b6845c7ab1 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataSerializer.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataSerializer.kt
@@ -32,7 +32,8 @@ abstract class KlibMetadataSerializer(
     val languageVersionSettings: LanguageVersionSettings,
     val metadataVersion: BinaryVersion,
     val skipExpects: Boolean = false,
-    val includeOnlyModuleContent: Boolean = false
+    val includeOnlyModuleContent: Boolean = false,
+    private val allowErrorTypes: Boolean
 ) {
 
     lateinit var serializerContext: SerializerContext
@@ -48,7 +49,8 @@ abstract class KlibMetadataSerializer(
         val extension = KlibMetadataSerializerExtension(
             languageVersionSettings,
             metadataVersion,
-            KlibMetadataStringTable()
+            KlibMetadataStringTable(),
+            allowErrorTypes
         )
         return SerializerContext(
             extension,
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataSerializerExtension.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataSerializerExtension.kt
index 2d0bc9534ff..80e6dc60c12 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataSerializerExtension.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/metadata/KlibMetadataSerializerExtension.kt
@@ -17,11 +17,13 @@ import org.jetbrains.kotlin.serialization.DescriptorSerializer
 import org.jetbrains.kotlin.serialization.KotlinSerializerExtensionBase
 import org.jetbrains.kotlin.serialization.StringTableImpl
 import org.jetbrains.kotlin.types.FlexibleType
+import org.jetbrains.kotlin.types.KotlinType
 
 class KlibMetadataSerializerExtension(
     private val languageVersionSettings: LanguageVersionSettings,
     override val metadataVersion: BinaryVersion,
-    override val stringTable: StringTableImpl
+    override val stringTable: StringTableImpl,
+    private val allowErrorTypes: Boolean
 ) : KotlinSerializerExtensionBase(KlibMetadataSerializerProtocol) {
     override fun shouldUseTypeTable(): Boolean = true
 
@@ -34,6 +36,10 @@ class KlibMetadataSerializerExtension(
         lowerProto.flexibleTypeCapabilitiesId = stringTable.getStringIndex(DynamicTypeDeserializer.id)
     }
 
+    override fun serializeErrorType(type: KotlinType, builder: ProtoBuf.Type.Builder) {
+        if (!allowErrorTypes) super.serializeErrorType(type, builder)
+    }
+
     override fun serializeClass(
         descriptor: ClassDescriptor,
         proto: ProtoBuf.Class.Builder,
diff --git a/compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/klib.kt b/compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/klib.kt
index b405154c8f6..391ca0ea887 100644
--- a/compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/klib.kt
+++ b/compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js/klib.kt
@@ -418,7 +418,7 @@ private class ModulesStructure(
         val analysisResult = analyzer.analysisResult
         if (IncrementalCompilation.isEnabledForJs()) {
             /** can throw [IncrementalNextRoundException] */
-            compareMetadataAndGoToNextICRoundIfNeeded(analysisResult, compilerConfiguration, files)
+            compareMetadataAndGoToNextICRoundIfNeeded(analysisResult, compilerConfiguration, files, errorPolicy.allowErrors)
         }
 
         var hasErrors = false
@@ -497,7 +497,7 @@ fun serializeModuleIntoKlib(
         ).serializedIrModule(moduleFragment)
 
     val moduleDescriptor = moduleFragment.descriptor
-    val metadataSerializer = KlibMetadataIncrementalSerializer(configuration)
+    val metadataSerializer = KlibMetadataIncrementalSerializer(configuration, containsErrorCode)
 
     val incrementalResultsConsumer = configuration.get(JSConfigurationKeys.INCREMENTAL_RESULTS_CONSUMER)
     val empty = ByteArray(0)
@@ -587,11 +587,12 @@ private fun KlibMetadataIncrementalSerializer.serializeScope(
 private fun compareMetadataAndGoToNextICRoundIfNeeded(
     analysisResult: AnalysisResult,
     config: CompilerConfiguration,
-    files: List<KtFile>
+    files: List<KtFile>,
+    allowErrors: Boolean
 ) {
     val nextRoundChecker = config.get(JSConfigurationKeys.INCREMENTAL_NEXT_ROUND_CHECKER) ?: return
     val bindingContext = analysisResult.bindingContext
-    val serializer = KlibMetadataIncrementalSerializer(config)
+    val serializer = KlibMetadataIncrementalSerializer(config, allowErrors)
     for (ktFile in files) {
         val packageFragment = serializer.serializeScope(ktFile, bindingContext, analysisResult.moduleDescriptor)
         // to minimize a number of IC rounds, we should inspect all proto for changes first,
@@ -602,8 +603,9 @@ private fun compareMetadataAndGoToNextICRoundIfNeeded(
     if (nextRoundChecker.shouldGoToNextRound()) throw IncrementalNextRoundException()
 }
 
-private fun KlibMetadataIncrementalSerializer(configuration: CompilerConfiguration) = KlibMetadataIncrementalSerializer(
+private fun KlibMetadataIncrementalSerializer(configuration: CompilerConfiguration, allowErrors: Boolean) = KlibMetadataIncrementalSerializer(
     languageVersionSettings = configuration.languageVersionSettings,
     metadataVersion = configuration.metadataVersion,
-    skipExpects = !configuration.expectActualLinker
+    skipExpects = !configuration.expectActualLinker,
+    allowErrorTypes = allowErrors
 )