Cannot start ROS version 3.6.6

[howdyhyber]

I tried to upgrade our ROS to the latest version and we have encountered an error

my-ros-app@1.0.0 start /home/mdelacerna/Documents/RealmExploration/my-test-app npm run build && node dist/index.js

my-ros-app@1.0.0 build /home/mdelacerna/Documents/RealmExploration/my-test-app rm -rf dist; ./node_modules/.bin/tsc

../../../node_modules/@types/zen-observable/index.d.ts(8,9): error TS2687: All declarations of 'observable' must have identical modifiers. npm ERR! code ELIFECYCLE npm ERR! errno 2 npm ERR! my-ros-app@1.0.0 build: rm -rf dist; ./node_modules/.bin/tsc npm ERR! Exit status 2 npm ERR! npm ERR! Failed at the my-ros-app@1.0.0 build script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in: npm ERR! /home/mdelacerna/.npm/_logs/2018-06-09T10_37_47_235Z-debug.log npm ERR! code ELIFECYCLE npm ERR! errno 2 npm ERR! my-ros-app@1.0.0 start: npm run build && node dist/index.js npm ERR! Exit status 2 npm ERR! npm ERR! Failed at the my-ros-app@1.0.0 start script. npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in: npm ERR! /home/mdelacerna/.npm/_logs/2018-06-09T10_37_47_343Z-debug.log

[howdyhyber]

Please disregard