fixing fastlane command

.travis.yml

@@ -32,6 +32,7 @@ addons:
       - patch
       - openssh-client
       - git
+      - ruby
 
 before_cache:
   - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
@@ -48,7 +49,7 @@ before_install:
   - ./travis/scripts/decode_private_configs.sh
 
 install:
-  - gem install fastlane
+  - rvm default exec gem install fastlane
   - ./travis/scripts/fetch_private_files.sh
   - cat ./travis/configs/gradle.properties > ./gradle.properties
 

travis/scripts/google_play_deploy.sh

@@ -1,10 +1,9 @@
 #!/bin/bash
 
-fastlane --version
-
 set -o allexport
 source $1
-fastlane supply run
+#https://docs.travis-ci.com/user/deployment/script/#Ruby-version
+rvm default exec fastlane supply run
 retcode=$?
 set +o allexport