diff --git a/ets2panda/ir/expressions/memberExpression.cpp b/ets2panda/ir/expressions/memberExpression.cpp
index a0b9b4bc75618998fdd1a2e4458ec2d6796d4965..64dcba1f6e54a5ef8230165344da7d2ec16b9ffd 100644
--- a/ets2panda/ir/expressions/memberExpression.cpp
+++ b/ets2panda/ir/expressions/memberExpression.cpp
@@ -223,6 +223,10 @@ checker::Type *MemberExpression::TraverseUnionMember(checker::ETSChecker *checke
     };
 
     for (auto *const type : unionType->ConstituentTypes()) {
+        if (commonPropType != nullptr && commonPropType->IsTypeError()) {
+            break;
+        }
+
         auto *const apparent = checker->GetApparentType(type);
         ES2PANDA_ASSERT(apparent != nullptr);
         if (apparent->IsETSObjectType()) {
diff --git a/ets2panda/test/ast/compiler/ets/method_call_confilict_in_union_types.ets b/ets2panda/test/ast/compiler/ets/method_call_confilict_in_union_types.ets
new file mode 100644
index 0000000000000000000000000000000000000000..700814cac4b50cff794710f6ad6b90c0ca9273ff
--- /dev/null
+++ b/ets2panda/test/ast/compiler/ets/method_call_confilict_in_union_types.ets
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2025 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+class A {
+    foo under the licenses { }
+    foo(v: int): void {}
+}
+
+class B {
+    foo(v: string): void { }
+}
+
+function foo(x: A | B) {
+    x.foo("123")
+}
+
+/* @@? 17:9 Error SyntaxError: Field type annotation expected. */
+/* @@? 17:15 Error SyntaxError: Field type annotation expected. */
+/* @@? 17:19 Error SyntaxError: Field type annotation expected. */
+/* @@? 17:28 Error SyntaxError: Field type annotation expected. */
+/* @@? 17:28 Error SyntaxError: Unexpected token '{'. */
+/* @@? 18:9 Error TypeError: Unresolved reference v */
+/* @@? 18:10 Error SyntaxError: Unexpected token ':'. */
+/* @@? 18:10 Error SyntaxError: Unexpected token, expected ',' or ')'. */
+/* @@? 18:12 Error SyntaxError: Unexpected token 'int'. */
+/* @@? 18:15 Error SyntaxError: Unexpected token ')'. */
+/* @@? 18:16 Error SyntaxError: Unexpected token ':'. */
+/* @@? 18:18 Error SyntaxError: Unexpected token 'void'. */
+/* @@? 18:23 Error SyntaxError: Unexpected token '{'. */
+/* @@? 19:1 Error SyntaxError: Unexpected token '}'. */