squiggle | SQL query in sinlge place | SQL Database library

I want to implement an embedded project using stm32F0 (arm-based) with VS Code. The project ran properly on other systems.

1. I Added C/C++ extension to visual studio
2. I installed a compiler for cortex-m0 arm: GNU Arm Embedded toolchain/gcc arm for windows.
3. Makefiles installed: binaries file + dependencies file
4. openOCD installed (open On Chip Debugger)
5. tasks.json (build instructions), c_cpp_properties.json (compiler path and IntelliSense settings) were created. I modified the Include path because my program includes header files that aren't in my workspace, and that is not in the standard library path.

c_cpp_properties.json file

So, I was trying to code a program which asks the user to input the points of a graph to calculate the euclidean distance and uses it as a radius to give the area of a circle.
Here's my code:

I have an issue, which I guess is caused by the Microsoft C/C++ plugin. Intellisense is showing errors at Google Test functions, but there are no actual errors (tests compile and run without any problem).

When I hover over the functions with these red error squiggles, it expands to the functionality, F12 (go to definition) works as well.

How do I get rid of these intellisense "errors"?

I have tried searching for the error messages, for "intellisense Gtest VSCode" and similar, but no luck in finding any useful solution. My guess is that I missed something, but what?

Have also tried playing around with c_cpp_properties.json (tried to include the exact path to gtest, to force include the actual gtest.h file, etc) but no luck there either.

It is pretty simple, basically:

I've created a Java Spring Boot service using the WebFlux reactive module, H2 in-memory database, and R2DBC reactive driver.

When I run the service, it fails with an "Unable to create a ConnectionFactory" error:

I am trying to program on vscode on wsl-2 ubuntu distro. I think I did setup the system correctly, but I keep getting red squiggles on identifiers that are in libraries I included in the code. The code looks like this:

I have a very odd problem where I will apply a recommended change that uses a C# 8.0 language feature (in this example I'll use compound assignment). I then get a red squiggly with the following message...

C# 8.0 language feature

This is a net5.0 project I have tried setting my language version property to any of the following...

9

9.0

latest

All of them show the same behaviour. The only way I can get the error to go away is by setting the property to 8 or 8.0 which seems a somewhat retrograde step!

I'm using Visual Studio 2019 and I'm fully patched and up to date as of the time of writing, along with the latest version of ReSharper.

The code will compile without problems but the squiggles are generating noise. Has anyone else found this and has any ideas how to make it go away?

I love the dash effect instead of the squiggles in the Neon Night VSCode theme, but some of the ui colors are a little bright for me. Anyone know how it is achieving the effect? I'm trying to apply the effect to a different theme, and have even downloaded/combed through the GH repo, but haven't managed to figure it out. My apologies if this has already been asked. If my google-fu is broken, please be kind.

Before anyone mark this as a duplicate, I referenced this stackoverflow question before posting here, I tried all solutions in that thread but still it is not working for me. I am migrating a legacy java project into spring boot application. When I start the server I am getting this stacktrace,

I have a WordPress theme and for a part of it I want to use a React component (I don't need SSR). I have used create-react-app in the past but now I have this code: