From 0c751b9c8db490260d5b51ec86960e2224e763af Mon Sep 17 00:00:00 2001
From: Mikael Finstad <finstaden@gmail.com>
Date: Fri, 3 May 2024 23:59:11 +0200
Subject: [PATCH] improve error message #1979

---
 src/renderer/src/util/outputNameTemplate.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/renderer/src/util/outputNameTemplate.ts b/src/renderer/src/util/outputNameTemplate.ts
index fd36606e..6c83f2ed 100644
--- a/src/renderer/src/util/outputNameTemplate.ts
+++ b/src/renderer/src/util/outputNameTemplate.ts
@@ -62,8 +62,9 @@ function getOutSegProblems({ fileNames, filePath, outputDir, safeOutputFileName
       error = i18n.t('At least one resulting file name has no length');
       break;
     }
-    if ([...fileName].some((char) => invalidChars.has(char))) {
-      error = i18n.t('At least one resulting file name contains invalid characters');
+    const matchingInvalidChars = new Set([...fileName].filter((char) => invalidChars.has(char)));
+    if (matchingInvalidChars.size > 0) {
+      error = i18n.t('At least one resulting file name contains invalid character(s): {{invalidChars}}', { invalidChars: `"${[...matchingInvalidChars].join('", "')}"` });
       break;
     }
     if (sameAsInputPath) {