From b6de9d4ea2b9c421c2c6e8cd68c0204ae143401b Mon Sep 17 00:00:00 2001
From: huanghongxun <i@huangyuhui.net>
Date: Sat, 31 Jul 2021 00:55:47 +0800
Subject: [PATCH] fix: failed to duplicate version when no jar

---
 .../main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java
index b1d770e57..d1a3c7962 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java
@@ -129,7 +129,9 @@ public class HMCLGameRepository extends DefaultGameRepository {
 
         if (dstDir.exists()) throw new IOException("Version exists");
         FileUtils.copyDirectory(srcDir.toPath(), dstDir.toPath());
-        Files.move(dstDir.toPath().resolve(srcId + ".jar"), dstDir.toPath().resolve(dstId + ".jar"));
+        if (Files.exists(dstDir.toPath().resolve(srcId + ".jar"))) {
+            Files.move(dstDir.toPath().resolve(srcId + ".jar"), dstDir.toPath().resolve(dstId + ".jar"));
+        }
         Files.move(dstDir.toPath().resolve(srcId + ".json"), dstDir.toPath().resolve(dstId + ".json"));
         VersionSetting oldVersionSetting = getVersionSetting(srcId).clone();
         GameDirectoryType originalGameDirType = oldVersionSetting.getGameDirType();