diff --git a/compiler/frontend/src/org/jetbrains/kotlin/diagnostics/rendering/DefaultErrorMessages.java b/compiler/frontend/src/org/jetbrains/kotlin/diagnostics/rendering/DefaultErrorMessages.java
index 3fc907f5ed1..bc7955fd995 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/diagnostics/rendering/DefaultErrorMessages.java
+++ b/compiler/frontend/src/org/jetbrains/kotlin/diagnostics/rendering/DefaultErrorMessages.java
@@ -273,14 +273,14 @@ public class DefaultErrorMessages {
         MAP.put(ACTUAL_TYPE_ALIAS_NOT_TO_CLASS, "Right-hand side of actual type alias should be a class, not another type alias");
         MAP.put(ACTUAL_TYPE_ALIAS_TO_CLASS_WITH_DECLARATION_SITE_VARIANCE, "Aliased class should not have type parameters with declaration-site variance");
         MAP.put(ACTUAL_TYPE_ALIAS_WITH_USE_SITE_VARIANCE, "Right-hand side of actual type alias cannot contain use-site variance or star projections");
-        MAP.put(ACTUAL_TYPE_ALIAS_WITH_COMPLEX_SUBSTITUTION, "Type arguments in the right-hand side of actual type alias should be its type parameters in the same order, e.g. 'impl typealias Foo<A, B> = Bar<A, B>'");
+        MAP.put(ACTUAL_TYPE_ALIAS_WITH_COMPLEX_SUBSTITUTION, "Type arguments in the right-hand side of actual type alias should be its type parameters in the same order, e.g. 'actual typealias Foo<A, B> = Bar<A, B>'");
 
         MAP.put(NO_ACTUAL_FOR_EXPECT, "Expected {0} has no actual in module{1}{2}", DECLARATION_NAME_WITH_KIND,
                 PLATFORM, PlatformIncompatibilityDiagnosticRenderer.TEXT);
         MAP.put(ACTUAL_WITHOUT_EXPECT, "Actual {0} has no corresponding expected declaration{1}", DECLARATION_NAME_WITH_KIND,
                 PlatformIncompatibilityDiagnosticRenderer.TEXT);
 
-        MAP.put(NO_ACTUAL_CLASS_MEMBER_FOR_EXPECTED_CLASS, "In class ''{0}'' expected members have no actual ones:{1}",
+        MAP.put(NO_ACTUAL_CLASS_MEMBER_FOR_EXPECTED_CLASS, "Actual class ''{0}'' has no corresponding members for expected class members:{1}",
                 NAME, IncompatibleExpectedActualClassScopesRenderer.TEXT);
         MAP.put(ACTUAL_MISSING, "Declaration should be marked with 'actual' (suppress with -Xno-check-actual)");
 
diff --git a/compiler/testData/multiplatform/classScopes/functionIncorrectSignatureFromSuperclass/output.txt b/compiler/testData/multiplatform/classScopes/functionIncorrectSignatureFromSuperclass/output.txt
index ef32266f705..f67c45e003d 100644
--- a/compiler/testData/multiplatform/classScopes/functionIncorrectSignatureFromSuperclass/output.txt
+++ b/compiler/testData/multiplatform/classScopes/functionIncorrectSignatureFromSuperclass/output.txt
@@ -5,7 +5,7 @@ Output:
 -- JVM --
 Exit code: COMPILATION_ERROR
 Output:
-compiler/testData/multiplatform/classScopes/functionIncorrectSignatureFromSuperclass/jvm.kt:5:14: error: in class 'Foo' expected members have no actual ones:
+compiler/testData/multiplatform/classScopes/functionIncorrectSignatureFromSuperclass/jvm.kt:5:14: error: actual class 'Foo' has no corresponding members for expected class members:
 
     public final expect fun function(b: ByteArray): Int
 
diff --git a/compiler/testData/multiplatform/classScopes/missingConstructor/output.txt b/compiler/testData/multiplatform/classScopes/missingConstructor/output.txt
index 1481373ec1c..04e32a8058a 100644
--- a/compiler/testData/multiplatform/classScopes/missingConstructor/output.txt
+++ b/compiler/testData/multiplatform/classScopes/missingConstructor/output.txt
@@ -5,7 +5,7 @@ Output:
 -- JVM --
 Exit code: COMPILATION_ERROR
 Output:
-compiler/testData/multiplatform/classScopes/missingConstructor/jvm.kt:1:14: error: in class 'Foo' expected members have no actual ones:
+compiler/testData/multiplatform/classScopes/missingConstructor/jvm.kt:1:14: error: actual class 'Foo' has no corresponding members for expected class members:
 
     public constructor Foo(s: String)
 
diff --git a/compiler/testData/multiplatform/classScopes/missingFunction/output.txt b/compiler/testData/multiplatform/classScopes/missingFunction/output.txt
index 44f45cb3152..0540d1da425 100644
--- a/compiler/testData/multiplatform/classScopes/missingFunction/output.txt
+++ b/compiler/testData/multiplatform/classScopes/missingFunction/output.txt
@@ -5,7 +5,7 @@ Output:
 -- JVM --
 Exit code: COMPILATION_ERROR
 Output:
-compiler/testData/multiplatform/classScopes/missingFunction/jvm.kt:1:14: error: in class 'Foo' expected members have no actual ones:
+compiler/testData/multiplatform/classScopes/missingFunction/jvm.kt:1:14: error: actual class 'Foo' has no corresponding members for expected class members:
 
     public final expect fun function(s: String): Unit
 
diff --git a/compiler/testData/multiplatform/missingOverload/output.txt b/compiler/testData/multiplatform/missingOverload/output.txt
index 5812172a44f..ce4a8d9d137 100644
--- a/compiler/testData/multiplatform/missingOverload/output.txt
+++ b/compiler/testData/multiplatform/missingOverload/output.txt
@@ -11,7 +11,7 @@ The following declaration is incompatible because parameter types are different:
 
 expect fun g(s: String)
 ^
-compiler/testData/multiplatform/missingOverload/jvm.kt:1:14: error: in class 'Foo' expected members have no actual ones:
+compiler/testData/multiplatform/missingOverload/jvm.kt:1:14: error: actual class 'Foo' has no corresponding members for expected class members:
 
     public final expect fun f(a: Any): Unit
 
diff --git a/compiler/testData/multiplatform/regressions/incompatibleClassScopesWithImplTypeAlias/output.txt b/compiler/testData/multiplatform/regressions/incompatibleClassScopesWithImplTypeAlias/output.txt
index 14ad088cfc8..d0ef99e3046 100644
--- a/compiler/testData/multiplatform/regressions/incompatibleClassScopesWithImplTypeAlias/output.txt
+++ b/compiler/testData/multiplatform/regressions/incompatibleClassScopesWithImplTypeAlias/output.txt
@@ -5,7 +5,7 @@ Output:
 -- JVM --
 Exit code: COMPILATION_ERROR
 Output:
-compiler/testData/multiplatform/regressions/incompatibleClassScopesWithImplTypeAlias/jvm.kt:3:1: error: in class 'Writer' expected members have no actual ones:
+compiler/testData/multiplatform/regressions/incompatibleClassScopesWithImplTypeAlias/jvm.kt:3:1: error: actual class 'Writer' has no corresponding members for expected class members:
 
     protected constructor Writer()
 
diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/IdeErrorMessages.java b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/IdeErrorMessages.java
index 10933fb480d..17c6e928009 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/IdeErrorMessages.java
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/highlighter/IdeErrorMessages.java
@@ -180,7 +180,7 @@ public class IdeErrorMessages {
         MAP.put(ACTUAL_WITHOUT_EXPECT, "<html>Actual {0} has no corresponding expected declaration{1}</html>", DECLARATION_NAME_WITH_KIND,
                 new PlatformIncompatibilityDiagnosticRenderer(IdeMultiplatformDiagnosticRenderingMode.INSTANCE));
 
-        MAP.put(NO_ACTUAL_CLASS_MEMBER_FOR_EXPECTED_CLASS, "<html>In class ''{0}'' expected members have no actual ones:{1}</html>",
+        MAP.put(NO_ACTUAL_CLASS_MEMBER_FOR_EXPECTED_CLASS, "<html>Actual class ''{0}'' has no corresponding members for expected class members:{1}</html>",
                 NAME, new IncompatibleExpectedActualClassScopesRenderer(IdeMultiplatformDiagnosticRenderingMode.INSTANCE));
 
         MAP.setImmutable();