diff --git a/lib/debug/server_cdp.rb b/lib/debug/server_cdp.rb
index db4ca9124..99abffcfa 100644
--- a/lib/debug/server_cdp.rb
+++ b/lib/debug/server_cdp.rb
@@ -1194,7 +1194,11 @@ def search_const b, expr
       [Object, *b.eval('::Module.nesting')].reverse_each{|mod|
         if cs.all?{|c|
              if mod.const_defined?(c)
-               mod = mod.const_get(c)
+               begin
+                 mod = mod.const_get(c)
+               rescue Exception
+                 false
+               end
              else
                false
              end
diff --git a/lib/debug/server_dap.rb b/lib/debug/server_dap.rb
index cf50395e1..288db814d 100644
--- a/lib/debug/server_dap.rb
+++ b/lib/debug/server_dap.rb
@@ -960,7 +960,11 @@ def search_const b, expr
       [Object, *b.eval('::Module.nesting')].reverse_each{|mod|
         if cs.all?{|c|
              if mod.const_defined?(c)
-               mod = mod.const_get(c)
+               begin
+                 mod = mod.const_get(c)
+               rescue Exception
+                 false
+               end
              else
                false
              end
diff --git a/lib/debug/thread_client.rb b/lib/debug/thread_client.rb
index 1f90df081..2d184a76a 100644
--- a/lib/debug/thread_client.rb
+++ b/lib/debug/thread_client.rb
@@ -608,7 +608,11 @@ def show_consts pat, only_self: false
           c.constants(false).sort.each{|name|
             next if names.has_key? name
             names[name] = nil
-            value = c.const_get(name)
+            begin
+              value = c.const_get(name)
+            rescue Exception => e
+              value = e
+            end
             puts_variable_info name, value, pat
           }
         }
diff --git a/test/console/info_test.rb b/test/console/info_test.rb
index 7c696d1e0..ae72f42af 100644
--- a/test/console/info_test.rb
+++ b/test/console/info_test.rb
@@ -203,6 +203,16 @@ def test_info_constant
         type 'c'
       end
     end
+
+    def test_info_constant_twice
+      debug_code program do
+        type 'i c' # on Ruby 3.2, `Set` loads `set.rb`
+        type 'i c' # on Ruby 3.2, accessing `SortedSet` raises an error
+        # #<RuntimeError: The `SortedSet` class has been extracted from the `set` library.
+        #                 You must use the `sorted_set` gem or other alternatives.
+        type 'c'
+      end
+    end
   end
 
   class InfoIvarsTest < ConsoleTestCase