diff --git a/Directory.Build.props b/Directory.Build.props
index 5a917231..9e6fa87c 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,5 +1,16 @@
 <Project>
 
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <CommandsDirectory>$(MSBuildThisFileDirectory).submodules\commands\</CommandsDirectory>
+    <CommunicationDirectory>$(MSBuildThisFileDirectory).submodules\communication\</CommunicationDirectory>
+    <ConfigurationDirectory>$(MSBuildThisFileDirectory).submodules\configurations\</ConfigurationDirectory>
+    <LibplanetDirectory>$(MSBuildThisFileDirectory).submodules\libplanet\</LibplanetDirectory>
+    <NoWarn>$(NoWarn);NU1902;NU1903</NoWarn>
+  </PropertyGroup>
+
   <ItemGroup>
     <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.556">
       <PrivateAssets>all</PrivateAssets>
diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index a3a25260..097afbe4 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -3,21 +3,7 @@
   <Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-    <CommandsDirectory>$(MSBuildThisFileDirectory)..\.commands\</CommandsDirectory>
-    <CommunicationDirectory>$(MSBuildThisFileDirectory)..\.communication\</CommunicationDirectory>
-    <ConfigurationDirectory>$(MSBuildThisFileDirectory)..\.configurations\</ConfigurationDirectory>
-    <LibplanetDirectory>$(MSBuildThisFileDirectory)..\.libplanet\</LibplanetDirectory>
     <DebugType Condition="'$(_IsPublishing)'=='true'">none</DebugType>
   </PropertyGroup>
 
-  <Target Name="DisplaySourceUsage" BeforeTargets="Build">
-    <Warning Condition="Exists('$(CommandsDirectory)')" Text="Commands is being referenced from this source.: $(CommandsDirectory)" />
-    <Warning Condition="Exists('$(CommunicationDirectory)')" Text="Communication is being referenced from this source.: $(CommunicationDirectory)" />
-    <Warning Condition="Exists('$(ConfigurationDirectory)')" Text="Configurations is being referenced from this source.: $(ConfigurationDirectory)" />
-    <Warning Condition="Exists('$(LibplanetDirectory)')" Text="Libplanet is being referenced from this source.: $(LibplanetDirectory)" />
-  </Target>
-
 </Project>
diff --git a/src/common/LibplanetConsole.Common/LibplanetConsole.Common.csproj b/src/common/LibplanetConsole.Common/LibplanetConsole.Common.csproj
index d9a8d7ed..1411fb8b 100644
--- a/src/common/LibplanetConsole.Common/LibplanetConsole.Common.csproj
+++ b/src/common/LibplanetConsole.Common/LibplanetConsole.Common.csproj
@@ -2,11 +2,11 @@
 
   <!-- $(LibplanetDirectory) exists. -->
   <ItemGroup Condition="Exists('$(LibplanetDirectory)')">
-    <ProjectReference Include="$(LibplanetDirectory)Libplanet\Libplanet.csproj" />
-    <ProjectReference Include="$(LibplanetDirectory)Libplanet.Net\Libplanet.Net.csproj" />
-    <ProjectReference Include="$(LibplanetDirectory)Libplanet.Crypto\Libplanet.Crypto.csproj" />
-    <ProjectReference Include="$(LibplanetDirectory)Libplanet.Store\Libplanet.Store.csproj" />
-    <ProjectReference Include="$(LibplanetDirectory)Libplanet.RocksDBStore\Libplanet.RocksDBStore.csproj" />
+    <ProjectReference Include="$(LibplanetDirectory)src\Libplanet\Libplanet.csproj" />
+    <ProjectReference Include="$(LibplanetDirectory)src\Libplanet.Net\Libplanet.Net.csproj" />
+    <ProjectReference Include="$(LibplanetDirectory)src\Libplanet.Crypto\Libplanet.Crypto.csproj" />
+    <ProjectReference Include="$(LibplanetDirectory)src\Libplanet.Store\Libplanet.Store.csproj" />
+    <ProjectReference Include="$(LibplanetDirectory)src\Libplanet.RocksDBStore\Libplanet.RocksDBStore.csproj" />
   </ItemGroup>
 
   <!-- $(LibplanetDirectory) does not exist. -->
diff --git a/src/common/LibplanetConsole.Seeds/LibplanetConsole.Seeds.csproj b/src/common/LibplanetConsole.Seeds/LibplanetConsole.Seeds.csproj
index 0f88d1a2..c1ae43e0 100644
--- a/src/common/LibplanetConsole.Seeds/LibplanetConsole.Seeds.csproj
+++ b/src/common/LibplanetConsole.Seeds/LibplanetConsole.Seeds.csproj
@@ -2,8 +2,8 @@
 
   <!-- $(LibplanetDirectory) exists. -->
   <ItemGroup Condition="Exists('$(LibplanetDirectory)')">
-    <ProjectReference Include="$(LibplanetDirectory)Libplanet.Net\Libplanet.Net.csproj" />
-    <ProjectReference Include="$(LibplanetDirectory)Libplanet.Crypto\Libplanet.Crypto.csproj" />
+    <ProjectReference Include="$(LibplanetDirectory)src\Libplanet.Net\Libplanet.Net.csproj" />
+    <ProjectReference Include="$(LibplanetDirectory)src\Libplanet.Crypto\Libplanet.Crypto.csproj" />
   </ItemGroup>
 
   <!-- $(LibplanetDirectory) does not exist. -->
diff --git a/src/node/LibplanetConsole.Nodes.Explorer/LibplanetConsole.Nodes.Explorer.csproj b/src/node/LibplanetConsole.Nodes.Explorer/LibplanetConsole.Nodes.Explorer.csproj
index 354e4f2d..c2293aa9 100644
--- a/src/node/LibplanetConsole.Nodes.Explorer/LibplanetConsole.Nodes.Explorer.csproj
+++ b/src/node/LibplanetConsole.Nodes.Explorer/LibplanetConsole.Nodes.Explorer.csproj
@@ -2,7 +2,7 @@
 
   <!-- $(LibplanetDirectory) exists. -->
   <ItemGroup Condition="Exists('$(LibplanetDirectory)')">
-    <ProjectReference Include="$(LibplanetDirectory)Libplanet.Explorer\Libplanet.Explorer.csproj" />
+    <ProjectReference Include="$(LibplanetDirectory)tools\Libplanet.Explorer\Libplanet.Explorer.csproj" />
   </ItemGroup>
 
   <!-- $(LibplanetDirectory) does not exist. -->
diff --git a/test/Directory.Build.props b/test/Directory.Build.props
index 4231dacb..7c0f9fc0 100644
--- a/test/Directory.Build.props
+++ b/test/Directory.Build.props
@@ -3,9 +3,6 @@
   <Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
     <IsPackable>false</IsPackable>
     <IsTestProject>true</IsTestProject>
   </PropertyGroup>