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I recently started using Vaadin, everything was great for the most part. I created a file merger, and due to a mistake the files endlessly merged until my hard-drive hit capacity.

Now, even when I attempt to run the absolute basic CRM tutorial with no manual changes or adjustments it also no longer runs. So ignoring my application I built, I can't even get the standard CRM tutorial out of the zip file to run. I have attempted mvn clean install. I have attempted deleting the generated files and letting them regenerate automatically. I have ran this exact tutorial with no changes mere hours ago and I'm confident there are no malformed characters. Any help would be greatly appreciated. Unless it's a matter of pure coincidence a dependency changed at this exact moment, I must assume spooling my hard drive full ruined something, I just can't figure out what.

I am trying to make a chat application with scaledrone. I was following this tutorial: https://www.scaledrone.com/blog/javascript-chat-room-tutorial/ but after setting up the basic chat, I wanted to let users define their own name. So I made an input box and then tried using js to take the input box value and assign it to a variable. And then for the name part of the chat application, instead of using the random name function I was using earlier. However, I got the error "can not read properties of null(reading addEventListener) in my console and the submit button did not show up at all. What did I do wrong? The code I used is in pastebin links below. The scaledrone documentation is here: https://www.scaledrone.com/docs/api-clients/javascript Thanks in advance. also, I added the raw text of my javascript file below because stack overflow won't let me post without adding some code(first time posting to stack overflow lol).

https://pastebin.com/9DvF3WnX https://pastebin.com/UrZ1xsMB

I need to connect signal_response of FileChooserNative to the function, but I got an error when I try to use code from example from Programming with gtkmm 4 book.

When I try to compile this (g++, XCLT, macOS Big Sur):

Can someone help me.I am now Currently working on an app and it works on my few hours but now i have an error message. i also tried updating the EXT{} on different version

Should deployment diagram contain such details as VPCs, firewalls, AWS zones and accounts boundaries, servers' count/CPU/cores, SaaS service tier/resources, names of the servers?

I'm modeling system in the cloud, so Deployment Diagram provides a small value over Component Diagram without at least some of those details. Google says Deployment Diagram can contain hardware detail. In the same time all examples (like this) haven't got those information.

Im trying to recreate this code: https://github.com/Code-Bullet/Smart-Dots-Genetic-Algorithm-Tutorial/tree/master/BestTutorialEver , but in python, and it doesn't work, it keeps mutating the best dot and every generation starts with less dots. Here is the code (i use pygame for graphics):

Brain class:

I need some help with inheritance and coding to interfaces in C++. I'm creating a state machine from which I'll derive another state machine. Therefore I have two interacting parts, a StateMachine and a State. The problem is that with this design, I cannot derive a specialised State from either the StateMachine or a DerivedStateMachine.

I'm using macOS Catalina (v10.15.7) to compile the following example code from gtkmm's online book:

I have init a swarm with 1 manager and 1 worker, each on a different hosts, following the official tutorial. I also use Traefik, following these instructions on dockerswarm.rocks, using simply overlay network created with: