Hello,  I have run into a problem compiling where library files that do exist cannot be located.

At line 606 in the attached log: Adafruit_MCP4725.h: 10:37: fatal error: Adafruit_BusIO_Register.h: No such file or directory
If I search for Adafruit_BusIO_Register.h the file does exist in the library path R:\Code\Arduino\libraries\Adafruit_BusIO\Adafruit_BusIO_Register.h

This has been happening frequently after getting back into some coding for an ESP8266 project.  I've had to bounce between board versions to work around bugs and update the Arduino libraries that are used.


Thank you, 
John

Hi Tim,

Thank you for the suggestion to run the Clean Solution tool.  I ran it, re-scanned libraries and rebuilt with similar issues; "No such file or directory" along with "was not declared in this scope", "does not name a type"

The Solution Explorer shows the header files under the Project -> External Dependencies.

I can navigate to the files using the ctrl + click to jump to the declarations, but the build output says the files cannot be found.

I rolled back some of the library updates and also moved some of the libraries used into the Sketch folders, changed the respective #includes from <> to "", no change.

I changed some of the #include paths to be absolute and some of the intellisense errors and "No such file or directory" build erros go away, but there are still errors for "does not name a type" and "was not declared in this scope", but I can navigate to the type declarations as well.

Regards

Hi

I would ignore intellisense errors until you have a succesful build. Only after a successful build can intellisense paths be updated from the actual results. Intellisense is more lienent because code is treated as work in progress by VS, without a build it has to make some guesses. It's also a good idea to switch off debugging until you have a working project because that adds a lot more to the diagnostics output.

It appears the problem is that your ESP8266_WebServer_Stove.ino code attempts to use Sd2Card, SdVolume, SdFile and I guess they don't exist in the esp8266/2.7.4/libraries/SD library? Does this compile using the Arduino IDE?

You do need to stay within the Arduino Library Specification when working with libraries but you appear to be doing that. The esp compiler will do whatever it is designed to do. You will see in the output that each file is compiled by calling an .exe in the esp toolchain.
[url=https://arduino.github.io/arduino-cli/library-specification/]https://arduino.github.io/arduino-cli/library-specification/[/url]

You can see in the output you posted which libraries are being discovered and from where. For example:
 [code]Using library Hash version 1.0 in folder /2.7.4/libraries/Hash"
 

More info. You wil see these library paths in your output. A few of th 15 libraries you are using

R:/Code/Arduino/libraries/Rtc_by_Makuna
R:/Code/Arduino/libraries/Adafruit_MCP4725
R:/Code/Arduino/libraries/Adafruit_ADS1X15
R:/Code/Arduino/libraries/U8g2
R:/Code/Arduino/libraries/ArduinoJson
braries/SPI
braries/SD
braries/SDFS
braries/ESP8266SdFat
R:/Code/Arduino/libraries/WebSockets


In Visual Micro, you can break the Arduino library location rules and use specific library versions from any location using the checkboxes on the "Add Library" menu however the downside is you loose auto updated when new library versions are released. This auto update or auto discovery is at the heart of Arduino and is recommended. You will see that Arduino allows you to override libraries by putting them in the sketchbook\libraries folder (R:/Code/Arduino/libraries). It is possible that you need a different SD library.

Absolute paths are not supported with Arduino. I suggest deleteing these folders and reinstalling board and libraries. 

C:/Users/John/AppData/Local/arduino15/packages
R:\Code\Arduino\libraries 

Then see it working in a new almost empty project that just references and uses the libs you want to use.

Install the versions that used to work for you then post the output.

Thanks