From da0e1f17db60d9591f45c48899c487e751fc4782 Mon Sep 17 00:00:00 2001
From: Florian Rappl <florian.rappl@skve.de>
Date: Thu, 3 Sep 2026 17:04:21 +0200
Subject: [PATCH] Fixes #1097

---
 Changelog.md                                  |  1 +
 src/ElectronNET/build/ElectronNET.Core.props  |  9 +++------
 .../build/ElectronNET.LateImport.targets      | 20 +++++++++++++++++--
 3 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/Changelog.md b/Changelog.md
index d9f2b76..31dd8f6 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -4,6 +4,7 @@
 
 - Updated dependencies
 - Fixed socket bridge connection when a system proxy is configured (#1105)
+- Fixed electron-builder using the host RID instead of the target RID (#1097)
 - Fixed cross-compilation behavior on same platform (#1098) @epsnm
 - Fixed resolution of unrelated target (#1099) @epsnm
 - Added target framework customization (#1095) @epsnm
diff --git a/src/ElectronNET/build/ElectronNET.Core.props b/src/ElectronNET/build/ElectronNET.Core.props
index 13578ca..2291e3d 100644
--- a/src/ElectronNET/build/ElectronNET.Core.props
+++ b/src/ElectronNET/build/ElectronNET.Core.props
@@ -4,12 +4,9 @@
   <PropertyGroup Label="ElectronNetCommon">
     <ElectronVersion>30.4.0</ElectronVersion>
     <ElectronBuilderVersion>26.0</ElectronBuilderVersion>
-    <!-- Allow ElectronRuntimeIdentifier to be overridden (explicitly or via RuntimeIdentifier) -->
-    <ElectronRuntimeIdentifier Condition="'$(ElectronRuntimeIdentifier)' == '' AND '$(RuntimeIdentifier)' != ''">$(RuntimeIdentifier)</ElectronRuntimeIdentifier>
-    <!-- When using the dotnet CLI (Core MSBuild), infer the current RID as a default -->
-    <ElectronRuntimeIdentifier Condition="'$(ElectronRuntimeIdentifier)' == '' AND '$(MSBuildRuntimeType)' == 'Core'">$([System.Runtime.InteropServices.RuntimeInformation]::RuntimeIdentifier)</ElectronRuntimeIdentifier>
-    <!-- Otherwise, Full MSBuild runs only on Windows, so infer a Windows RID from OSArchitecture -->
-    <ElectronRuntimeIdentifier Condition="'$(ElectronRuntimeIdentifier)' == '' AND '$(MSBuildRuntimeType)' == 'Full'">win-$([System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture.ToString().ToLower())</ElectronRuntimeIdentifier>
+    <!-- ElectronRuntimeIdentifier may be set explicitly here; it is otherwise resolved from
+         RuntimeIdentifier (or the host) in ElectronResolveRuntimeIdentifier, which runs late
+         enough to also see RIDs coming from the project file or a publish profile. -->
     <ElectronSingleInstance>true</ElectronSingleInstance>
     <ElectronSplashScreen></ElectronSplashScreen>
     <ElectronIcon></ElectronIcon>
diff --git a/src/ElectronNET/build/ElectronNET.LateImport.targets b/src/ElectronNET/build/ElectronNET.LateImport.targets
index 4ee0e8b..5e9d965 100644
--- a/src/ElectronNET/build/ElectronNET.LateImport.targets
+++ b/src/ElectronNET/build/ElectronNET.LateImport.targets
@@ -95,8 +95,24 @@
  </Target>
 
 
+  <!-- Resolved at execution time, so that a RuntimeIdentifier coming from the project file,
+       a publish profile or the CLI wins over the host RID. -->
+  <Target Name="ElectronResolveRuntimeIdentifier">
+
+    <PropertyGroup>
+      <ElectronRuntimeIdentifier Condition="'$(ElectronRuntimeIdentifier)' == '' AND '$(RuntimeIdentifier)' != ''">$(RuntimeIdentifier)</ElectronRuntimeIdentifier>
+      <!-- When using the dotnet CLI (Core MSBuild), infer the current RID as a default -->
+      <ElectronRuntimeIdentifier Condition="'$(ElectronRuntimeIdentifier)' == '' AND '$(MSBuildRuntimeType)' == 'Core'">$([System.Runtime.InteropServices.RuntimeInformation]::RuntimeIdentifier)</ElectronRuntimeIdentifier>
+      <!-- Otherwise, Full MSBuild runs only on Windows, so infer a Windows RID from OSArchitecture -->
+      <ElectronRuntimeIdentifier Condition="'$(ElectronRuntimeIdentifier)' == '' AND '$(MSBuildRuntimeType)' == 'Full'">win-$([System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture.ToString().ToLower())</ElectronRuntimeIdentifier>
+    </PropertyGroup>
+
+    <Message Text="ElectronRuntimeIdentifier: $(ElectronRuntimeIdentifier)" Importance="High" />
+
+  </Target>
+
   <!-- This is also run at design time, each time when a property of the project is changed -->
-  <Target Name="ElectronCreatePackageJson" DependsOnTargets="ResolveProjectReferences;ElectronSetPaths">
+  <Target Name="ElectronCreatePackageJson" DependsOnTargets="ResolveProjectReferences;ElectronSetPaths;ElectronResolveRuntimeIdentifier">
 
     <Message Text="Creating package.json from template..." Importance="High" />
     <Message Text="OutDir: $(OutDir)" Importance="High" />
@@ -370,7 +386,7 @@
     <RemoveDir Directories="$(ElectronHookTargetModuleDir)" Condition="Exists($(ElectronHookTargetModuleDir))" />
   </Target>
 
-  <Target Name="ElectronCheckVersionMismatch">
+  <Target Name="ElectronCheckVersionMismatch" DependsOnTargets="ElectronResolveRuntimeIdentifier">
 
     <PropertyGroup>
       <ElectronArch Condition="'$(ElectronRuntimeIdentifier)' == 'win-x64'">x64</ElectronArch>