use Microsoft.Build.NoTargets instead

Author: smdn

eng/ProjectSettings.NoAssemblies.props

@@ -4,6 +4,8 @@ SPDX-License-Identifier: MIT
 -->
 <Project>
   <PropertyGroup>
+    <!-- TargetFramework cannot be empty -->
+    <TargetFramework>netstandard2.0</TargetFramework>
     <!-- exclude build output assembly from packing -->
     <IncludeBuildOutput>false</IncludeBuildOutput>
     <!-- suppress warning NU5128 (ref: https://docs.microsoft.com/en-us/nuget/reference/errors-and-warnings/nu5128#scenario-2) -->

eng/ProjectSettings.NoAssembliesNoBuild.props

@@ -1,5 +1,6 @@
 {
   "msbuild-sdks": {
+    "Microsoft.Build.NoTargets": "3.7.56",
     "Smdn.MSBuild.ProjectAssets.Common": "1.6.1",
     "Smdn.MSBuild.ProjectAssets.Library": "1.9.1"
   }

global.json

@@ -2,12 +2,10 @@
 SPDX-FileCopyrightText: 2022 smdn <smdn@smdn.jp>
 SPDX-License-Identifier: MIT
 -->
-<Project Sdk="Microsoft.NET.Sdk">
-  <!-- target 'Compile' is required to generate API list -->
+<Project Sdk="Microsoft.Build.NoTargets">
   <Import Project="$(MSBuildThisFileDirectory)..\..\eng\ProjectSettings.NoAssemblies.props" />
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
     <VersionPrefix>1.5.2</VersionPrefix>
     <VersionSuffix></VersionSuffix>
     <DevelopmentDependency>true</DevelopmentDependency>

src/Smdn.MSBuild.DefineConstants.NETSdkApi/Smdn.MSBuild.DefineConstants.NETSdkApi.csproj

@@ -2,8 +2,8 @@
 SPDX-FileCopyrightText: 2022 smdn <smdn@smdn.jp>
 SPDX-License-Identifier: MIT
 -->
-<Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="$(MSBuildThisFileDirectory)..\..\eng\ProjectSettings.NoAssembliesNoBuild.props" />
+<Project Sdk="Microsoft.Build.NoTargets">
+  <Import Project="$(MSBuildThisFileDirectory)..\..\eng\ProjectSettings.NoAssemblies.props" />
 
   <PropertyGroup>
     <VersionPrefix>1.6.1</VersionPrefix>

src/Smdn.MSBuild.ProjectAssets.Common/Smdn.MSBuild.ProjectAssets.Common.csproj

@@ -2,8 +2,8 @@
 SPDX-FileCopyrightText: 2022 smdn <smdn@smdn.jp>
 SPDX-License-Identifier: MIT
 -->
-<Project Sdk="Microsoft.NET.Sdk">
-  <Import Project="$(MSBuildThisFileDirectory)..\..\eng\ProjectSettings.NoAssembliesNoBuild.props" />
+<Project Sdk="Microsoft.Build.NoTargets">
+  <Import Project="$(MSBuildThisFileDirectory)..\..\eng\ProjectSettings.NoAssemblies.props" />
 
   <PropertyGroup>
     <VersionPrefix>1.9.1</VersionPrefix>