fix

.drone.yml

   commands:
     - git config --global user.email "frontwork.me@gmail.com"
     - git config --global user.name "drone"
-    - PACKAGE_VERSION=$(cat package.json | grep version | head -1 | awk -F: '{ print $2 }' | sed 's/[\",]//g' | tr -d '[[:space:]]')
-    - LATEST_VERSION=$(npm view rpclibrary | grep latest | head -1 | awk -F: '{ print $2 }' | sed 's/[\",]//g' | tr -d '[[:space:]]')
+    - export PACKAGE_VERSION $(cat package.json | grep version | head -1 | awk -F: '{ print $2 }' | sed 's/[\",]//g' | tr -d '[[:space:]]')
+    - export LATEST_VERSION $(npm view rpclibrary | grep latest | head -1 | awk -F: '{ print $2 }' | sed 's/[\",]//g' | tr -d '[[:space:]]')
     - >- if [ "${PACKAGE_VERSION}" != "${LATEST_VERSION}" ]; 
       then
         git tag $PACKAGE_VERSION