Errors & Fixes

Here is a list of some of the most annoying errors found throughout development. They either have subtle and tricky solutions, or solutions found only by digging through pages and pages of GitHub issues.

Contents:

• Uncaught SyntaxError: Unexpected token <
• JsonWebTokenError: invalid signature
• Unexpected reserved word 'import' when deployed to heroku
• knex seeds "insert or update on table violates foreign key constraint"
• Testing with mocha and chai "Uncaught Error: listen EADDRINUSE :::8888"