try to fix travis caching

david-driscoll · david-driscoll · commit 1747e932482f · 2017-11-08T12:23:30.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -8,6 +8,8 @@ os:
 cache:
   directories:
     - tools
+before_cache:
+  - rm -f tools/packages.config
 git:
   depth: 1000
 script:
