diff --git a/compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/klib/irForKlib.kt b/compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/klib/irForKlib.kt
index 28057d4fe9d..d4057543036 100644
--- a/compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/klib/irForKlib.kt
+++ b/compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/klib/irForKlib.kt
@@ -84,7 +84,12 @@ fun generateIrForKlibSerialization(
         messageLogger,
         psi2IrContext.irBuiltIns,
         psi2IrContext.symbolTable,
-        partialLinkageSupport = createPartialLinkageSupportForLinker(configuration.partialLinkageConfig, psi2IrContext.irBuiltIns, messageLogger),
+        partialLinkageSupport = createPartialLinkageSupportForLinker(
+            partialLinkageConfig = configuration.partialLinkageConfig,
+            allowErrorTypes = errorPolicy.allowErrors,
+            builtIns = psi2IrContext.irBuiltIns,
+            messageLogger = messageLogger
+        ),
         feContext,
         ICData(icData.map { it.irData }, errorPolicy.allowErrors),
         stubGenerator = stubGenerator
diff --git a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/ic/JsIrLinkerLoader.kt b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/ic/JsIrLinkerLoader.kt
index 748836bb97a..bc1b6299917 100644
--- a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/ic/JsIrLinkerLoader.kt
+++ b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/ic/JsIrLinkerLoader.kt
@@ -28,6 +28,8 @@ import org.jetbrains.kotlin.ir.linkage.partial.partialLinkageConfig
 import org.jetbrains.kotlin.ir.util.ExternalDependenciesGenerator
 import org.jetbrains.kotlin.ir.util.SymbolTable
 import org.jetbrains.kotlin.ir.util.irMessageLogger
+import org.jetbrains.kotlin.js.config.ErrorTolerancePolicy
+import org.jetbrains.kotlin.js.config.JSConfigurationKeys
 import org.jetbrains.kotlin.library.KotlinLibrary
 import org.jetbrains.kotlin.library.uniqueName
 import org.jetbrains.kotlin.library.unresolvedDependencies
@@ -108,6 +110,7 @@ internal class JsIrLinkerLoader(
         val symbolTable = SymbolTable(signaturer, irFactory)
         val moduleDescriptor = loadedModules.keys.last()
         val typeTranslator = TypeTranslatorImpl(symbolTable, compilerConfiguration.languageVersionSettings, moduleDescriptor)
+        val errorPolicy = compilerConfiguration[JSConfigurationKeys.ERROR_TOLERANCE_POLICY] ?: ErrorTolerancePolicy.DEFAULT
         val irBuiltIns = IrBuiltInsOverDescriptors(moduleDescriptor.builtIns, typeTranslator, symbolTable)
         val messageLogger = compilerConfiguration.irMessageLogger
         val linker = JsIrLinker(
@@ -115,7 +118,12 @@ internal class JsIrLinkerLoader(
             messageLogger = messageLogger,
             builtIns = irBuiltIns,
             symbolTable = symbolTable,
-            partialLinkageSupport = createPartialLinkageSupportForLinker(compilerConfiguration.partialLinkageConfig, irBuiltIns, messageLogger),
+            partialLinkageSupport = createPartialLinkageSupportForLinker(
+                partialLinkageConfig = compilerConfiguration.partialLinkageConfig,
+                allowErrorTypes = errorPolicy.allowErrors,
+                builtIns = irBuiltIns,
+                messageLogger = messageLogger
+            ),
             translationPluginContext = null,
             friendModules = mapOf(mainLibrary.uniqueName to mainModuleFriends.map { it.uniqueName })
         )
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/linkage/partial/ClassifierExplorer.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/linkage/partial/ClassifierExplorer.kt
index de1e5419860..5185bcb98c5 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/linkage/partial/ClassifierExplorer.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/linkage/partial/ClassifierExplorer.kt
@@ -30,7 +30,11 @@ import org.jetbrains.kotlin.ir.visitors.acceptChildrenVoid
 import org.jetbrains.kotlin.utils.addIfNotNull
 import org.jetbrains.kotlin.ir.linkage.partial.PartialLinkageUtils.Module as PLModule
 
-internal class ClassifierExplorer(private val builtIns: IrBuiltIns, private val stubGenerator: MissingDeclarationStubGenerator) {
+internal class ClassifierExplorer(
+    private val builtIns: IrBuiltIns,
+    private val stubGenerator: MissingDeclarationStubGenerator,
+    private val allowErrorTypes: Boolean
+) {
     private val exploredSymbols = ExploredClassifiers()
 
     private val permittedAnnotationArrayParameterSymbols: Set<IrClassSymbol> by lazy {
@@ -72,7 +76,12 @@ internal class ClassifierExplorer(private val builtIns: IrBuiltIns, private val
                 ?: arguments.firstUnusable { it.typeOrNull?.exploreType(visitedSymbols) }
                 ?: Usable
             is IrDynamicType -> Usable
-            else -> throw IllegalArgumentException("Unsupported IR type: ${this::class.java}, $this")
+            else -> {
+                if (this is IrErrorType && allowErrorTypes)
+                    Usable
+                else
+                    throw IllegalArgumentException("Unsupported IR type: ${this::class.java}, $this")
+            }
         }
     }
 
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/linkage/partial/PartialLinkageSupportForLinkerImpl.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/linkage/partial/PartialLinkageSupportForLinkerImpl.kt
index edd4ccb0bd8..7077fa5babb 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/linkage/partial/PartialLinkageSupportForLinkerImpl.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/linkage/partial/PartialLinkageSupportForLinkerImpl.kt
@@ -18,20 +18,22 @@ import org.jetbrains.kotlin.ir.util.allUnbound
 
 fun createPartialLinkageSupportForLinker(
     partialLinkageConfig: PartialLinkageConfig,
+    allowErrorTypes: Boolean,
     builtIns: IrBuiltIns,
     messageLogger: IrMessageLogger
 ): PartialLinkageSupportForLinker = if (partialLinkageConfig.isEnabled)
-    PartialLinkageSupportForLinkerImpl(builtIns, partialLinkageConfig.logLevel, messageLogger)
+    PartialLinkageSupportForLinkerImpl(builtIns, allowErrorTypes, partialLinkageConfig.logLevel, messageLogger)
 else
     PartialLinkageSupportForLinker.DISABLED
 
 internal class PartialLinkageSupportForLinkerImpl(
     builtIns: IrBuiltIns,
+    allowErrorTypes: Boolean,
     logLevel: PartialLinkageLogLevel,
     messageLogger: IrMessageLogger
 ) : PartialLinkageSupportForLinker {
     private val stubGenerator = MissingDeclarationStubGenerator(builtIns)
-    private val classifierExplorer = ClassifierExplorer(builtIns, stubGenerator)
+    private val classifierExplorer = ClassifierExplorer(builtIns, stubGenerator, allowErrorTypes)
     private val patcher = PartiallyLinkedIrTreePatcher(builtIns, classifierExplorer, stubGenerator, logLevel, messageLogger)
 
     override val isEnabled get() = true
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 6011ab2f2ee..264a619d7cd 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
@@ -264,13 +264,19 @@ fun getIrModuleInfoForKlib(
     val mainModuleLib = sortedDependencies.last()
     val typeTranslator = TypeTranslatorImpl(symbolTable, configuration.languageVersionSettings, moduleDescriptor)
     val irBuiltIns = IrBuiltInsOverDescriptors(moduleDescriptor.builtIns, typeTranslator, symbolTable)
+    val errorPolicy = configuration[JSConfigurationKeys.ERROR_TOLERANCE_POLICY] ?: ErrorTolerancePolicy.DEFAULT
 
     val irLinker = JsIrLinker(
         currentModule = null,
         messageLogger = messageLogger,
         builtIns = irBuiltIns,
         symbolTable = symbolTable,
-        partialLinkageSupport = createPartialLinkageSupportForLinker(configuration.partialLinkageConfig, irBuiltIns, messageLogger),
+        partialLinkageSupport = createPartialLinkageSupportForLinker(
+            partialLinkageConfig = configuration.partialLinkageConfig,
+            allowErrorTypes = errorPolicy.allowErrors,
+            builtIns = irBuiltIns,
+            messageLogger = messageLogger
+        ),
         translationPluginContext = null,
         icData = null,
         friendModules = friendModules
@@ -322,13 +328,19 @@ fun getIrModuleInfoForSourceFiles(
     val feContext = psi2IrContext.run {
         JsIrLinker.JsFePluginContext(moduleDescriptor, symbolTable, typeTranslator, irBuiltIns)
     }
+    val errorPolicy = configuration[JSConfigurationKeys.ERROR_TOLERANCE_POLICY] ?: ErrorTolerancePolicy.DEFAULT
 
     val irLinker = JsIrLinker(
         currentModule = psi2IrContext.moduleDescriptor,
         messageLogger = messageLogger,
         builtIns = irBuiltIns,
         symbolTable = symbolTable,
-        partialLinkageSupport = createPartialLinkageSupportForLinker(configuration.partialLinkageConfig, irBuiltIns, messageLogger),
+        partialLinkageSupport = createPartialLinkageSupportForLinker(
+            partialLinkageConfig = configuration.partialLinkageConfig,
+            allowErrorTypes = errorPolicy.allowErrors,
+            builtIns = irBuiltIns,
+            messageLogger = messageLogger
+        ),
         translationPluginContext = feContext,
         icData = null,
         friendModules = friendModules,
diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/PsiToIr.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/PsiToIr.kt
index f85803423ea..494d0b8e3d1 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/PsiToIr.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/PsiToIr.kt
@@ -143,7 +143,12 @@ internal fun PsiToIrContext.psiToIr(
                 stubGenerator = stubGenerator,
                 cenumsProvider = irProviderForCEnumsAndCStructs,
                 exportedDependencies = exportedDependencies,
-                partialLinkageSupport = createPartialLinkageSupportForLinker(partialLinkageConfig, generatorContext.irBuiltIns, messageLogger),
+                partialLinkageSupport = createPartialLinkageSupportForLinker(
+                        partialLinkageConfig = partialLinkageConfig,
+                        allowErrorTypes = false, // Kotlin/Native does not support error types.
+                        builtIns = generatorContext.irBuiltIns,
+                        messageLogger = messageLogger
+                ),
                 cachedLibraries = config.cachedLibraries,
                 lazyIrForCaches = config.lazyIrForCaches,
                 libraryBeingCached = config.libraryToCache,