Meteor used to automatically compile every package in node_modules , but since most apps now rely on more and more modules, that was taking a long time to do, and almost all modules on npm publish pre-compiled code that works natively on node and in the browser.
For the few packages that don’t, this change means these packages that magically worked before, now don’t.
There is a method to manually opt into compilation of individual modules if this is the cause of your problem. You can symbolically link the folder into your imports directory so the build tool queues it for compilation, and it will bundle the compiled version for your app to use.
Alternatively, you can copy the files into your project and they will be compiled
The full details are in this pull request: https://github.com/meteor/meteor/pull/9771
An easier way to opt-in to module compilation is coming in the next update (can’t remember if it’s in 1.8.2 or 1.9), where you add the module name to package.json.