diff --git a/build/common.targets b/build/common.targets
index 02cf69bd..2f1f822e 100644
--- a/build/common.targets
+++ b/build/common.targets
@@ -7,7 +7,7 @@ repo. It imports the other MSBuild files as needed.
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <!--set general build properties -->
-    <Version>3.17.0</Version>
+    <Version>3.17.1</Version>
     <Product>SMAPI</Product>
     <LangVersion>latest</LangVersion>
     <AssemblySearchPaths>$(AssemblySearchPaths);{GAC}</AssemblySearchPaths>
diff --git a/docs/release-notes.md b/docs/release-notes.md
index 7574d62b..9c4fdefc 100644
--- a/docs/release-notes.md
+++ b/docs/release-notes.md
@@ -7,6 +7,12 @@
   _If needed, you can update to SMAPI 3.16.0 first and then install the latest version._
 -->
 
+## 3.17.1
+Released 10 October 2022 for Stardew Valley 1.5.6 or later.
+
+* For players:
+  * Fixed installer error on Windows if the Steam library folder exists but doesn't contain Steam's `.vdf` library data file.
+
 ## 3.17.0
 Released 09 October 2022 for Stardew Valley 1.5.6 or later. See [release highlights](https://www.patreon.com/posts/73090322).
 
diff --git a/src/SMAPI.Mods.ConsoleCommands/manifest.json b/src/SMAPI.Mods.ConsoleCommands/manifest.json
index 754e543a..ecac30bf 100644
--- a/src/SMAPI.Mods.ConsoleCommands/manifest.json
+++ b/src/SMAPI.Mods.ConsoleCommands/manifest.json
@@ -1,9 +1,9 @@
 {
     "Name": "Console Commands",
     "Author": "SMAPI",
-    "Version": "3.17.0",
+    "Version": "3.17.1",
     "Description": "Adds SMAPI console commands that let you manipulate the game.",
     "UniqueID": "SMAPI.ConsoleCommands",
     "EntryDll": "ConsoleCommands.dll",
-    "MinimumApiVersion": "3.17.0"
+    "MinimumApiVersion": "3.17.1"
 }
diff --git a/src/SMAPI.Mods.ErrorHandler/manifest.json b/src/SMAPI.Mods.ErrorHandler/manifest.json
index 8f94e5ab..3d708876 100644
--- a/src/SMAPI.Mods.ErrorHandler/manifest.json
+++ b/src/SMAPI.Mods.ErrorHandler/manifest.json
@@ -1,9 +1,9 @@
 {
     "Name": "Error Handler",
     "Author": "SMAPI",
-    "Version": "3.17.0",
+    "Version": "3.17.1",
     "Description": "Handles some common vanilla errors to log more useful info or avoid breaking the game.",
     "UniqueID": "SMAPI.ErrorHandler",
     "EntryDll": "ErrorHandler.dll",
-    "MinimumApiVersion": "3.17.0"
+    "MinimumApiVersion": "3.17.1"
 }
diff --git a/src/SMAPI.Mods.SaveBackup/manifest.json b/src/SMAPI.Mods.SaveBackup/manifest.json
index a9401fc3..c2bf5f05 100644
--- a/src/SMAPI.Mods.SaveBackup/manifest.json
+++ b/src/SMAPI.Mods.SaveBackup/manifest.json
@@ -1,9 +1,9 @@
 {
     "Name": "Save Backup",
     "Author": "SMAPI",
-    "Version": "3.17.0",
+    "Version": "3.17.1",
     "Description": "Automatically backs up all your saves once per day into its folder.",
     "UniqueID": "SMAPI.SaveBackup",
     "EntryDll": "SaveBackup.dll",
-    "MinimumApiVersion": "3.17.0"
+    "MinimumApiVersion": "3.17.1"
 }
diff --git a/src/SMAPI.Toolkit/Framework/GameScanning/GameScanner.cs b/src/SMAPI.Toolkit/Framework/GameScanning/GameScanner.cs
index 66465ffe..1d518738 100644
--- a/src/SMAPI.Toolkit/Framework/GameScanning/GameScanner.cs
+++ b/src/SMAPI.Toolkit/Framework/GameScanning/GameScanner.cs
@@ -264,8 +264,12 @@ namespace StardewModdingAPI.Toolkit.Framework.GameScanning
             if (steamPath == null)
                 return null;
 
-            // get raw .vdf data
+            // get .vdf file path
             string libraryFoldersPath = Path.Combine(steamPath.Replace('/', '\\'), "steamapps\\libraryfolders.vdf");
+            if (!File.Exists(libraryFoldersPath))
+                return null;
+
+            // read data
             using FileStream fileStream = File.OpenRead(libraryFoldersPath);
             VdfDeserializer deserializer = new();
             dynamic libraries = deserializer.Deserialize(fileStream);
diff --git a/src/SMAPI/Constants.cs b/src/SMAPI/Constants.cs
index 31dafa8e..ea41a4ee 100644
--- a/src/SMAPI/Constants.cs
+++ b/src/SMAPI/Constants.cs
@@ -52,7 +52,7 @@ namespace StardewModdingAPI
         internal static int? LogScreenId { get; set; }
 
         /// <summary>SMAPI's current raw semantic version.</summary>
-        internal static string RawApiVersion = "3.17.0";
+        internal static string RawApiVersion = "3.17.1";
     }
 
     /// <summary>Contains SMAPI's constants and assumptions.</summary>