From 57f4184e4f9ca39b94ba42cc0ef2712748a242a4 Mon Sep 17 00:00:00 2001
From: Haoqun Jiang <haoqunjiang@gmail.com>
Date: Wed, 29 Jul 2020 13:48:08 +0800
Subject: [PATCH] fix: make vue-loader-v16 an optional dependency, avoid
 crashing npm 5 (#5718)

fixes #5715
---
 packages/@vue/cli-service/package.json | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/@vue/cli-service/package.json b/packages/@vue/cli-service/package.json
index 95618cefe5..7e3d86943f 100644
--- a/packages/@vue/cli-service/package.json
+++ b/packages/@vue/cli-service/package.json
@@ -72,7 +72,6 @@
     "thread-loader": "^2.1.3",
     "url-loader": "^2.2.0",
     "vue-loader": "^15.9.2",
-    "vue-loader-v16": "npm:vue-loader@^16.0.0-beta.3",
     "vue-style-loader": "^4.1.2",
     "webpack": "^4.0.0",
     "webpack-bundle-analyzer": "^3.8.0",
@@ -80,6 +79,9 @@
     "webpack-dev-server": "^3.11.0",
     "webpack-merge": "^4.2.2"
   },
+  "optionalDependencies": {
+    "vue-loader-v16": "npm:vue-loader@^16.0.0-beta.3"
+  },
   "peerDependencies": {
     "@vue/compiler-sfc": "^3.0.0-beta.14",
     "vue-template-compiler": "^2.0.0"