Workaround for weird yarn link behavior

sokra · web-flow · commit 8ee65f120a0d · 2017-05-16T10:37:37.000+02:00
diff --git a/appveyor.yml b/appveyor.yml
@@ -22,7 +22,7 @@ install:
   - ps: Install-Product node $env:nodejs_version x64
   - npm install yarn -g
   - yarn install
-  - yarn link
+  - yarn link || yarn link
   - yarn link webpack
 
 build: off
