Sometimes you might get an error that looks like this in your browser

There has been an error processing your request
Exception printing is disabled by default for security reasons.
Error log record number: 73693983689

A Magento 2 top development tip to help debug exception errors.

Rename pub/errors/local.sample.xml to pub/errors/local.xml to make exceptions visible in your browser.

Don't forget to the check the file for other options such as emailing the exception to yourself.