From e652315ddee8b82b38e7aa9d0ce7f179e281377e Mon Sep 17 00:00:00 2001
From: hai-x <98948357+hai-x@users.noreply.github.com>
Date: Sat, 11 Jan 2025 22:46:23 +0800
Subject: [PATCH] fix: add more detailed error messages (#1665)

* fix: add more detailed error messages

* chore: meta
---
 CHANGELOG.md        | 3 +++
 package.json        | 2 +-
 src/instances.ts    | 2 +-
 src/servicesHost.ts | 1 -
 4 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8f2f23014..278ad8efd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+## 9.5.2
+* [fix: add more detailed error messages](https://github.com/TypeStrong/ts-loader/pull/1665) - thanks @hai-x
+
 ## 9.5.1
 * [fix: inputSourceMap can be null](https://github.com/TypeStrong/ts-loader/pull/1639) [#1638] - thanks @johnnyreilly and @michaeltford
 
diff --git a/package.json b/package.json
index b8655a2fd..db727528b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ts-loader",
-  "version": "9.5.1",
+  "version": "9.5.2",
   "description": "TypeScript loader for webpack",
   "main": "index.js",
   "types": "dist",
diff --git a/src/instances.ts b/src/instances.ts
index 6be876d68..376ecd73a 100644
--- a/src/instances.ts
+++ b/src/instances.ts
@@ -375,7 +375,7 @@ export function initializeInstance(
   } else {
     if (!loader._compiler!.hooks) {
       throw new Error(
-        "You may be using an old version of webpack; please check you're using at least version 4"
+        "You may be using an old version of webpack; please check you're using at least version 4. Or you should set `transpileOnly` or `happyPackMode` to true when using with `thread-loader`."
       );
     }
 
diff --git a/src/servicesHost.ts b/src/servicesHost.ts
index 1445fd873..ff1997c1f 100644
--- a/src/servicesHost.ts
+++ b/src/servicesHost.ts
@@ -382,7 +382,6 @@ function createWatchFactory(
     }
     return result;
   }
-  ``;
 
   function invokeRecursiveDirectoryWatcher(
     directory: string,