"Invalid parameter."

No stack trace.

Fuck.

I was pressued to shift the blame.

We received an angry email from a customer that some of their data had disappeared. The boss assigns me to this task. This feature is relatively new and we've found some bugs in the past in here. I go through request logs, search the database, run some diagnostics, etc. for about 5 hours and I cannot find the problem. I focus on the bugs that we've had before but they don't seem to be the problem.

I tell the boss "sorry but I checked XYZ and I can't find the problem. I'm out of ideas." But the boss wanted answers by the end of the day. They did not want to admit to the client that we couldn't figure out what's wrong.

By now I was more pressured to find an answer, find something or someone to blame it on, not exactly to find the real solution. So I made up some BS:

"Sometimes, in HTML forms, the number inputs allow you to change the number by scrolling. We have some long forms where the user has to scroll. Perhaps the focus remained on the number input, so when they scrolled down they accidentally changed the number they meant to input."

The boss was happy with that. We explained this to the customer, and there's now a ticket to change type="number" to type="text" in our HTML forms and to validate it in th backend.

A week later another customer shows us a different error. This one is more clear because it had a stack trace, but I realise that this error is what caused our last error. It was pretty obscure, mind you, the unit tests didn't detect it.

I didn't tell the boss that they were connected tho.

With two angry clients in two weeks, I finally convinced the boss to give us more time to write more unit tests with full coverage.

I swear to god this industry needs some serious purging. I was trying to google the parameter to Node that crashes on unhandled promise rejections so that I can get a stack trace and debug it properly, and literally all relevant SO questions were asking how to _prevent node from crashing on unhandled promise rejections_. In what realm is that preferred behavior?

Man, I love how G++ (and every other Gnu tool for that matter) makes 0 effort to understand what you fucked up, and they only tell you where they got stuck. What am I supposed to do with this error that doesn't contain a single reference to my project?

After brute forced access to her hardware I spotted huge memory leak spreading on my key logger I just installed. She couldn’t resist right after my data reached her database so I inserted it once more to duplicate her primary key, she instantly locked my transaction and screamed so loud that all neighborhood was broadcasted with a message that exception is being raised. Right after she grabbed back of my stick just to push my exploit harder to it’s limits and make sure all stack trace is being logged into her security kernel log.
Fortunately my spyware was obfuscated and my metadata was hidden so despite she wanted to copy my code into her newly established kernel and clone it into new deadly weapon all my data went into temporary file I could flush right after my stick was unloaded.
Right after deeply scanning her localhost I removed my stick from her desktop and left the building, she was left alone again, loudly complaining about her security hole being exploited.
My work was done and I was preparing to break into another corporate security system.
- penetration tester diaries

What's the worst part about testing React components? Using the equivalent of fucking stone tools to do your component integration tests! We got errors with no context and errors with no stack trace, just spewing out bullshit! A sample:

The classic "Can't access .root on unmounted test renderer"

The unforgettable and ALWAYS visible "Warning: An update to YourShittyComponent inside a test was not wrapped in act(...)."

We do love it!

Due to budget cuts all the contractors in my team where let go by the end of last year. My two remaining colleagues can't read a stack trace right and take a week to try that maybe the repo that isn't building correct should be cloned again. I'dont consider myself a great developer by any stretch. I'm pretty willing to support anyone. Those two incidents left me speechless. I'm so tired sometimes.