iron meteor cannot find simpl-schema

[kingzuru]

I am using iron-meteor for scaffolding meteor apps with aldeed collections2. I have installed simpl-schema globally via;
npm install -g --save simpl-schema
but when I try to iron run I get the following error;

=> Started proxy.
=> Started MongoDB.
W20190716-20:45:24.686(2)? (STDERR) Note: you are using a pure-JavaScript implementation of bcrypt.
W20190716-20:45:24.714(2)? (STDERR) While this implementation will work correctly, it is known to be
W20190716-20:45:24.714(2)? (STDERR) approximately three times slower than the native implementation.
W20190716-20:45:24.719(2)? (STDERR) In order to use the native implementation instead, run
W20190716-20:45:24.720(2)? (STDERR)
W20190716-20:45:24.720(2)? (STDERR) meteor npm install --save bcrypt
W20190716-20:45:24.720(2)? (STDERR)
W20190716-20:45:24.720(2)? (STDERR) in the root directory of your application.
W20190716-20:45:24.894(2)? (STDERR) WARNING: npm peer requirements (for aldeed:collection2) not installed:
W20190716-20:45:24.894(2)? (STDERR) - simpl-schema@>=0.0.0 not installed.
W20190716-20:45:24.894(2)? (STDERR)
W20190716-20:45:24.895(2)? (STDERR) Read more about installing npm peer dependencies:
W20190716-20:45:24.895(2)? (STDERR) http://guide.meteor.com/using-packages.html#peer-npm-dependencies
W20190716-20:45:24.895(2)? (STDERR)
W20190716-20:45:24.937(2)? (STDERR) /home/kingzuru/.meteor/packages/meteor-tool/.1.8.1.1ehy8qi.j0unh++os.linux.x86_64+web.browser+web.browser.legacy+web.cordova/mt-os.linux.x86_64/dev_bundle/server-lib/node_modules/fibers/future.js:280
W20190716-20:45:24.940(2)? (STDERR) throw(ex);
W20190716-20:45:24.941(2)? (STDERR) ^
W20190716-20:45:24.941(2)? (STDERR)
W20190716-20:45:24.941(2)? (STDERR) Error: Cannot find module 'simpl-schema'
W20190716-20:45:24.942(2)? (STDERR) at makeMissingError (packages/modules-runtime.js:222:12)
W20190716-20:45:24.942(2)? (STDERR) at Module.require (packages/modules-runtime.js:241:17)
W20190716-20:45:24.942(2)? (STDERR) at require (packages/modules-runtime.js:258:21)
W20190716-20:45:24.943(2)? (STDERR) at collection2.js (packages/aldeed:collection2/collection2.js:13:22)
W20190716-20:45:24.943(2)? (STDERR) at fileEvaluate (packages/modules-runtime.js:336:7)
W20190716-20:45:24.943(2)? (STDERR) at Module.require (packages/modules-runtime.js:238:14)
W20190716-20:45:24.944(2)? (STDERR) at require (packages/modules-runtime.js:258:21)
W20190716-20:45:24.944(2)? (STDERR) at /var/www/testapp/app/.meteor/local/build/programs/server/packages/aldeed_collection2.js:895:15
W20190716-20:45:24.944(2)? (STDERR) at /var/www/testapp/app/.meteor/local/build/programs/server/packages/aldeed_collection2.js:902:3
W20190716-20:45:24.945(2)? (STDERR) at /var/www/testapp/app/.meteor/local/build/programs/server/boot.js:419:36
W20190716-20:45:24.945(2)? (STDERR) at Array.forEach ()
W20190716-20:45:24.945(2)? (STDERR) at /var/www/testapp/app/.meteor/local/build/programs/server/boot.js:228:19
W20190716-20:45:24.945(2)? (STDERR) at /var/www/testapp/app/.meteor/local/build/programs/server/boot.js:479:5
W20190716-20:45:24.945(2)? (STDERR) at Function.run (/var/www/testapp/app/.meteor/local/build/programs/server/profile.js:510:12)
W20190716-20:45:24.946(2)? (STDERR) at /var/www/testapp/app/.meteor/local/build/programs/server/boot.js:478:11
=> Exited with code: 1

Any clue as to what could be wrong?