Will not minify on build/push - Unexpected character '�'

I am having trouble debugging the errror that occur when I try to publish the appliation to Heroku.

The log tells me amoing other things

remote: While minifying app code:
remote: /app/tmp/cache/meteor/.meteor/packages/standard-minifier-js/.
remote: Unexpected character ‘�’ (15267:0) while minifying packages/modules.js
remote: at _class.raise

The unexpected character seems to mess something up. Please help me

I have samme issue…