add gdal to prevent errs

zkamvar · zkamvar · commit ca221cc037ef · 2019-05-27T11:22:07.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -13,6 +13,7 @@ addons:
   apt:
     packages:
       - libudunits2-dev
+      - libgdal-dev
 
 # enable when codecov link established
 # r_github_packages:
