If you get a compiler-error or an upload-error provide all details for analysing the error

[StefanL38]

Hi newcomer,

the Arduino-Forum community can be of great help.
If the community is able to support you in a way that helps solving your problems depends on

detailed information that you should provide.

trying to be quick by posting a too short posting is just

slowing down

finding the solution. Because all that happends is that you are asked for the detailed information and have to provide it anyway. Only difference the answer and the solution comes later

The most important thing is to post your complete sketch as a code-section
which is described here

Make experienced users help: two ways to quickly post code as a code-section

Hi newcomer, This thread wants to show you how you can speed-up getting helpful answers with small effort. If you manage at least to post this way. You have the sympathy of the experienced users. If you are willing to invest another 20 minutes these 20 minutes extra-time will save you a minimum of 200 minutes to finish your project. always post your full sketch. As a code-section from the very first to the very last line A code-section has a small height => keeps your posting "short" but e…

In case of a compiler-error a second thing becomes crucial:
enabling the most detailed compiler-log the arduino-IDE can create.

In Arduino IDE 2.X click File - preferences

This will show you the preferences window

adjust these options to the shown values

Then compile your code new
If the compiler aborts with an error-message

click the green

Copy error-messages button

then change to browser with arduino-Forum

click the

button

This will insert three lines

So the error-message is inside a code-section

.
.
.
.
.

If you are using IDE 1.8.19

To enable this you have to go to

file - preferences

Which will show this window

Inside this window you have to activate

and then compile your code new.
The compiler will stop with the same error-message as before but has written much more detail-information about the compiling-process

You can copy the hundred of lines of this compiler-log into the clipboard by a single mouse-click

Then you change back to the forum and create a

code-section

Above the textwriting-field of each posting there are some button

There is one button to create a code-section that looks like this

If you click on this button your browser inserts these lines

simply press Ctrl-V to insert the copied compiler-log into this code-section

The code-section has two advantages:

1. it has a limited height. => no eeeeeendleeeeeessss scrolling through
2. the content of a code-section can be copied into the clip-board by a single mouse-click.

This makes it very easy to copy the entire log to a local texteditor and to search for particular parts inide the logfile.

So it depends on how

carefully you provide detailed information

whether you can be helped faster or slower.

best regards Stefan
Be the change you want to see in the world

This notion of be the change you want to see in the world does 3 powerful things when we adopt it:
It stops us from judging others;
It replaces complaining about others with reflection on self;
It stirs us into taking action within the only thing in the world over which we have any control: ourselves.C

[StefanL38]

A collection of typical situations that cause a compiler-error

I need some help with my code i cant find what is wrong with my code

For future reference, "expected unqualified-id before" is one of the errors commonly caused by mismatched brackets. Here is a list of such errors to study. Common compiler errors caused by mismatched brackets: "does not name a type" or "expected declaration before" or "expected unqualified-id before" or "expected initializer before" or "expected constructor, destructor, or type conversion before '(' token" Usually means you forgot a '{' or put in an extra '}' in the previous function. …