From 08c1fa1714aa15775385f6484b510db486f416ac Mon Sep 17 00:00:00 2001
From: liubeijing <liubeijing@baidu.com>
Date: Sat, 12 Dec 2020 00:38:35 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=20fis=E4=B8=8A=E4=BC=A0?=
 =?UTF-8?q?=E7=9A=84=E6=97=B6=E5=80=99=E6=8A=A5ERR=5FINVALID=5FARG=5FTYP?=
 =?UTF-8?q?=E9=94=99=E8=AF=AFhttps://github.com/fex-team/fis3/issues/1319?=
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---
 lib/cache.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/cache.js b/lib/cache.js
index 20be221e1..8ed6a0d7a 100644
--- a/lib/cache.js
+++ b/lib/cache.js
@@ -39,8 +39,11 @@ var Cache = Object.derive(function(path, dir) {
       deps: this.deps,
       info: info
     };
-    fis.util.write(this.cacheInfo, JSON.stringify(infos));
-    fis.util.write(this.cacheFile, content);
+
+    if (content) {
+      fis.util.write(this.cacheInfo, JSON.stringify(infos));
+      fis.util.write(this.cacheFile, content);
+    }
   },
 
   /**