diff --git a/compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/transformations/InsertImplicitCasts.kt b/compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/transformations/InsertImplicitCasts.kt
index 66f317b8fd1..c88b0bd3a05 100644
--- a/compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/transformations/InsertImplicitCasts.kt
+++ b/compiler/ir/ir.psi2ir/src/org/jetbrains/kotlin/psi2ir/transformations/InsertImplicitCasts.kt
@@ -528,6 +528,7 @@ internal class InsertImplicitCasts(
     // This is a kludge to remove IR-based descriptors where possible.
     private fun KotlinType.toNonIrBased(): KotlinType {
         if (this !is SimpleType) return this
+        if (this.isError) return this
         val newDescriptor = constructor.declarationDescriptor?.let {
             if (it is IrBasedDeclarationDescriptor<*> && it.owner.symbol.hasDescriptor)
                 it.owner.symbol.descriptor as ClassifierDescriptor
diff --git a/plugins/kapt3/kapt3-compiler/testData/converter/nonExistentClassTypesConversion.kt b/plugins/kapt3/kapt3-compiler/testData/converter/nonExistentClassTypesConversion.kt
index 27f0d0cc840..c2b941aad63 100644
--- a/plugins/kapt3/kapt3-compiler/testData/converter/nonExistentClassTypesConversion.kt
+++ b/plugins/kapt3/kapt3-compiler/testData/converter/nonExistentClassTypesConversion.kt
@@ -1,4 +1,3 @@
-// IGNORE_BACKEND: JVM_IR
 // CORRECT_ERROR_TYPES
 // NON_EXISTENT_CLASS
 // NO_VALIDATION
diff --git a/plugins/kapt3/kapt3-compiler/testData/converter/nonExistentClassTypesConversion_ir.txt b/plugins/kapt3/kapt3-compiler/testData/converter/nonExistentClassTypesConversion_ir.txt
new file mode 100644
index 00000000000..d095164d167
--- /dev/null
+++ b/plugins/kapt3/kapt3-compiler/testData/converter/nonExistentClassTypesConversion_ir.txt
@@ -0,0 +1,303 @@
+import java.util.Calendar;
+import kotlin.reflect.KClass;
+
+@java.lang.annotation.Retention(value = java.lang.annotation.RetentionPolicy.RUNTIME)
+@kotlin.Metadata()
+public abstract @interface Anno {
+
+    public abstract java.lang.Class<?> a();
+
+    public abstract java.lang.Class<?>[] b();
+
+    public abstract java.lang.Class<?>[] c();
+
+    public abstract java.lang.Class<?>[] d();
+}
+
+////////////////////
+
+
+import java.util.Calendar;
+import kotlin.reflect.KClass;
+
+@kotlin.Metadata()
+public final class MyType<T extends java.lang.Object> {
+
+    public MyType() {
+        super();
+    }
+}
+
+////////////////////
+
+
+import java.util.Calendar;
+import kotlin.reflect.KClass;
+
+@kotlin.Metadata()
+@kotlin.Suppress(names = {"UNRESOLVED_REFERENCE", "ANNOTATION_ARGUMENT_MUST_BE_CONST", "NON_CONST_VAL_USED_IN_CONSTANT_EXPRESSION", "UNSUPPORTED_FEATURE"})
+public final class NonExistentClassTypesConversionKt {
+}
+
+////////////////////
+
+
+import java.util.Calendar;
+import kotlin.reflect.KClass;
+
+@Anno(a = Blah.class, b = {NoFoo1.class, NoBar1.class}, c = {NoFoo2.class, kotlin.String.class}, d = {kotlin.Boolean.class, NoBar3.class})
+@kotlin.Metadata()
+public final class Test<G extends java.lang.Object> {
+    public ABC a;
+    @org.jetbrains.annotations.Nullable()
+    private final ABC b = null;
+    @org.jetbrains.annotations.Nullable()
+    private final java.util.List<ABC> c = null;
+    @org.jetbrains.annotations.Nullable()
+    private final java.util.List<java.util.Map<BCD, ABC<java.util.List<BCD>>>> d = null;
+    public java.util.List<java.util.Map<? extends ABC, BCD>> e;
+    public ABC<?> f;
+    public java.util.List<?> g;
+    public ABC<java.lang.Integer, java.lang.String> h;
+    public Function2<ABC, java.util.List<BCD>, CDE> i;
+    public Function0<CDE> j;
+    public Function2<ABC, java.util.List<BCD>, CDE> k;
+    public ABC.BCD.EFG l;
+    public ABC coocoo;
+    public ABC<java.lang.String> coocoo2;
+    public ABC<ABC> coocoo21;
+    public ABC<java.lang.String, java.lang.String> coocoo3;
+    public ABC<java.lang.String, ABC<ABC>> coocoo31;
+    public ABC nested;
+    @org.jetbrains.annotations.NotNull()
+    private final java.lang.Object m = null;
+    @org.jetbrains.annotations.NotNull()
+    private final java.lang.String n = "";
+    public java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<error.NonExistentClass>>>>>>>>>> o11;
+    public java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<ABC>>>>>>>>> o10;
+    public java.util.Calendar.Builder p;
+
+    public Test() {
+        super();
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final ABC getA() {
+        return null;
+    }
+
+    public final void setA(@org.jetbrains.annotations.NotNull()
+    ABC p0) {
+    }
+
+    @org.jetbrains.annotations.Nullable()
+    public final ABC getB() {
+        return null;
+    }
+
+    @org.jetbrains.annotations.Nullable()
+    public final java.util.List<ABC> getC() {
+        return null;
+    }
+
+    @org.jetbrains.annotations.Nullable()
+    public final java.util.List<java.util.Map<BCD, ABC<java.util.List<BCD>>>> getD() {
+        return null;
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final java.util.List<java.util.Map<? extends ABC, BCD>> getE() {
+        return null;
+    }
+
+    public final void setE(@org.jetbrains.annotations.NotNull()
+    java.util.List<? extends java.util.Map<? extends ABC, ? extends BCD>> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final ABC<?> getF() {
+        return null;
+    }
+
+    public final void setF(@org.jetbrains.annotations.NotNull()
+    ABC<?> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final java.util.List<?> getG() {
+        return null;
+    }
+
+    public final void setG(@org.jetbrains.annotations.NotNull()
+    java.util.List<?> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final ABC<java.lang.Integer, java.lang.String> getH() {
+        return null;
+    }
+
+    public final void setH(@org.jetbrains.annotations.NotNull()
+    ABC<java.lang.Integer, java.lang.String> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final Function2<ABC, java.util.List<BCD>, CDE> getI() {
+        return null;
+    }
+
+    public final void setI(@org.jetbrains.annotations.NotNull()
+    Function2<ABC, java.util.List<? extends BCD>, CDE> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final Function0<CDE> getJ() {
+        return null;
+    }
+
+    public final void setJ(@org.jetbrains.annotations.NotNull()
+    Function0<CDE> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final Function2<ABC, java.util.List<BCD>, CDE> getK() {
+        return null;
+    }
+
+    public final void setK(@org.jetbrains.annotations.NotNull()
+    Function2<ABC, java.util.List<? extends BCD>, CDE> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final ABC.BCD.EFG getL() {
+        return null;
+    }
+
+    public final void setL(@org.jetbrains.annotations.NotNull()
+    ABC.BCD.EFG p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final ABC getCoocoo() {
+        return null;
+    }
+
+    public final void setCoocoo(@org.jetbrains.annotations.NotNull()
+    ABC p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final ABC<java.lang.String> getCoocoo2() {
+        return null;
+    }
+
+    public final void setCoocoo2(@org.jetbrains.annotations.NotNull()
+    ABC<java.lang.String> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final ABC<ABC> getCoocoo21() {
+        return null;
+    }
+
+    public final void setCoocoo21(@org.jetbrains.annotations.NotNull()
+    ABC<ABC> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final ABC<java.lang.String, java.lang.String> getCoocoo3() {
+        return null;
+    }
+
+    public final void setCoocoo3(@org.jetbrains.annotations.NotNull()
+    ABC<java.lang.String, java.lang.String> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final ABC<java.lang.String, ABC<ABC>> getCoocoo31() {
+        return null;
+    }
+
+    public final void setCoocoo31(@org.jetbrains.annotations.NotNull()
+    ABC<java.lang.String, ABC<ABC>> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final ABC getNested() {
+        return null;
+    }
+
+    public final void setNested(@org.jetbrains.annotations.NotNull()
+    ABC p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final java.lang.Object getM() {
+        return null;
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final java.lang.String getN() {
+        return null;
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<error.NonExistentClass>>>>>>>>>> getO11() {
+        return null;
+    }
+
+    public final void setO11(@org.jetbrains.annotations.NotNull()
+    java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<error.NonExistentClass>>>>>>>>>> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<java.util.List<ABC>>>>>>>>> getO10() {
+        return null;
+    }
+
+    public final void setO10(@org.jetbrains.annotations.NotNull()
+    java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends java.util.List<? extends ABC>>>>>>>>> p0) {
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final java.util.Calendar.Builder getP() {
+        return null;
+    }
+
+    public final void setP(@org.jetbrains.annotations.NotNull()
+    java.util.Calendar.Builder p0) {
+    }
+
+    @org.jetbrains.annotations.Nullable()
+    public final BCD f1(@org.jetbrains.annotations.NotNull()
+    ABC a) {
+        return null;
+    }
+
+    public final <T extends java.lang.Object>void f2(@org.jetbrains.annotations.NotNull()
+    ABC<java.lang.String, java.lang.Integer, Function0<BCD>> a) {
+    }
+
+    public final <T extends java.lang.Object>long f3(@org.jetbrains.annotations.NotNull()
+    ABC a, int b) {
+        return 0L;
+    }
+
+    @org.jetbrains.annotations.NotNull()
+    public final java.lang.Object f4() {
+        return null;
+    }
+
+    @org.jetbrains.annotations.Nullable()
+    public final <T extends java.lang.Object>java.lang.Class<java.lang.Enum<?>> f5(@org.jetbrains.annotations.NotNull()
+    MyType<T> $this$f5) {
+        return null;
+    }
+}
+
+////////////////////
+
+package error;
+
+public final class NonExistentClass {
+}