II have an error?

Projects Programming
1

In file included from /Users/mikekuhnkey/Documents/Arduino/libraries/107-Arduino-MCP2515/src/ArduinoMCP2515.h:18:0,
from /Users/mikekuhnkey/Documents/Arduino/libraries/107-Arduino-MCP2515/src/107-Arduino-MCP2515.h:15,
from /private/var/folders/dn/m54hbxjj6rl5p04gdkrrg5240000gn/T/.arduinoIDE-unsaved20241117-975-1bxguwe.tittk/MCP2515-Loopback/MCP2515-Loopback.ino:12:
/Users/mikekuhnkey/Documents/Arduino/libraries/107-Arduino-MCP2515/src/MCP2515/MCP2515_Io.h:19:10: fatal error: functional: No such file or directory
#include
^~~~~~~~~~~~
compilation terminated.
exit status 1

Compilation error: exit status 1

Where, or why is this "" missing?
Can anyone point me to the "libraries"...API?....beginner tutorials???

2

In this file, line 19, column 10...

Column 10 follows the whitespace after #include - the filename is missing.

An example could be...

#include <stdio.h>

... and the missing filename would be <stdio.h>

3

Look under the File menu, then take the examples link off this. You will then see a whole list of things you can do. Start off with the 01. Basics examples to start with an work your way down the list.

Have fun.

4

For which board are you compiling? Code compiles for an Uno R4 WiFi but not for an Uno. From https://docs.arduino.cc/libraries/107-arduino-mcp2515/

Looking at 107-Arduino-MCP2515/src/MCP2515/MCP2515_Io.h at 2ac84a797b0cd7021a5355f2e760f0a5296fac18 · 107-systems/107-Arduino-MCP2515 · GitHub, it is not missing

#include <functional>
5

In the original form, I agree.

6

It's missing in OP's post because they didn't put it in code tags. <functional> becomes blank.

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7

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