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Problem compiling on VSCode / PlatformIO

Hello,

I am new to Blynk and I have a project to start but I was first trying to get familiar with the environment.
I am not using the Arduino IDE for my projects but VSCode + PlatformIO

At the moment I am just testing on an Arduino Clone : Arduino Due ATMega168
I am using the Blynk example below and run into compiling issues in VSCode/PIO
I tried on the Arduino IDE and it compiles and run perfectly (I did test with the Blynk app on my iPhone and it all works perfectly)

In VSCode/PIO I have just create a new project with my matching device and have included the Blynk library (see below the PlatformIO.ini file)

When I compile in VSCode I get the following errors:

> Executing task in folder RainSensor: pio run --environment diecimilaatmega168 <

Processing diecimilaatmega168 (platform: atmelavr; board: diecimilaatmega168; framework: arduino)
----------------------------------------------------------------------------------------------------------------------------------------------
Verbose mode can be enabled via `-v, --verbose` option
CONFIGURATION: https://docs.platformio.org/page/boards/atmelavr/diecimilaatmega168.html
PLATFORM: Atmel AVR (3.0.0) > Arduino Duemilanove or Diecimila ATmega168
HARDWARE: ATMEGA168 16MHz, 1KB RAM, 14KB Flash
DEBUG: Current (simavr) On-board (simavr)
PACKAGES: 
 - framework-arduino-avr 5.1.0 
 - toolchain-atmelavr 1.50400.190710 (5.4.0)
LDF: Library Dependency Finder -> http://bit.ly/configure-pio-ldf
LDF Modes: Finder ~ chain, Compatibility ~ soft
Found 6 compatible libraries
Scanning dependencies...
Dependency Graph
|-- <Blynk> 0.6.5
|-- <SoftwareSerial> 1.0
Building in release mode
Compiling .pio/build/diecimilaatmega168/src/main.cpp.o
Compiling .pio/build/diecimilaatmega168/libd00/Blynk/utility/BlynkDebug.cpp.o
Compiling .pio/build/diecimilaatmega168/libd00/Blynk/utility/BlynkHandlers.cpp.o
Compiling .pio/build/diecimilaatmega168/libd00/Blynk/utility/BlynkTimer.cpp.o
In file included from .pio/libdeps/diecimilaatmega168/Blynk/src/Blynk/BlynkHandlers.h:15:0,
                 from .pio/libdeps/diecimilaatmega168/Blynk/src/utility/BlynkHandlers.cpp:11:
.pio/libdeps/diecimilaatmega168/Blynk/src/Blynk/BlynkParam.h: In member function 'long long int BlynkParam::iterator::asLongLong() const':
.pio/libdeps/diecimilaatmega168/Blynk/src/Blynk/BlynkParam.h:38:59: error: 'atoll' was not declared in this scope
         long long   asLongLong() const  { return atoll(ptr); }
                                                           ^
.pio/libdeps/diecimilaatmega168/Blynk/src/Blynk/BlynkParam.h: In member function 'long long int BlynkParam::asLongLong() const':
.pio/libdeps/diecimilaatmega168/Blynk/src/Blynk/BlynkParam.h:77:56: error: 'atoll' was not declared in this scope
     long long   asLongLong() const  { return atoll(buff); }
                                                        ^
*** [.pio/build/diecimilaatmega168/libd00/Blynk/utility/BlynkHandlers.cpp.o] Error 1
In file included from .pio/libdeps/diecimilaatmega168/Blynk/src/Blynk/BlynkApi.h:16:0,
                 from .pio/libdeps/diecimilaatmega168/Blynk/src/BlynkApiArduino.h:14,
                 from .pio/libdeps/diecimilaatmega168/Blynk/src/Adapters/BlynkSerial.h:18,
                 from .pio/libdeps/diecimilaatmega168/Blynk/src/BlynkSimpleStream.h:18,
                 from src/main.cpp:39:
.pio/libdeps/diecimilaatmega168/Blynk/src/Blynk/BlynkParam.h: In member function 'long long int BlynkParam::iterator::asLongLong() const':
.pio/libdeps/diecimilaatmega168/Blynk/src/Blynk/BlynkParam.h:38:59: error: 'atoll' was not declared in this scope
         long long   asLongLong() const  { return atoll(ptr); }
                                                           ^
.pio/libdeps/diecimilaatmega168/Blynk/src/Blynk/BlynkParam.h: In member function 'long long int BlynkParam::asLongLong() const':
.pio/libdeps/diecimilaatmega168/Blynk/src/Blynk/BlynkParam.h:77:56: error: 'atoll' was not declared in this scope
     long long   asLongLong() const  { return atoll(buff); }
                                                        ^
*** [.pio/build/diecimilaatmega168/src/main.cpp.o] Error 1
========================================================= [FAILED] Took 1.35 seconds =========================================================
The terminal process "pio 'run', '--environment', 'diecimilaatmega168'" terminated with exit code: 1.

Terminal will be reused by tasks, press any key to close it.

The PlatformIO.ini file looks like this:

[env:diecimilaatmega168]
platform = atmelavr
board = diecimilaatmega168
framework = arduino
upload_port = /dev/cu.wchusbserial1410
monitor_port = /dev/cu.wchusbserial1410
monitor_speed = 9600
lib_deps = blynkkk/Blynk@^0.6.5

The Blynk code example (that works with the Arduino IED)


#include <Arduino.h>

#define BLYNK_PRINT SwSerial


#include <SoftwareSerial.h>
SoftwareSerial SwSerial(10, 11); // RX, TX

#include <BlynkSimpleStream.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "mytoken";

// Attach virtual serial terminal to Virtual Pin V1
WidgetTerminal terminal(V1);

// You can send commands from Terminal to your hardware. Just use
// the same Virtual Pin as your Terminal Widget
BLYNK_WRITE(V1)
{

  // if you type "Marco" into Terminal Widget - it will respond: "Polo:"
  if (String("Marco") == param.asStr()) {
    terminal.println("You said: 'Marco'") ;
    terminal.println("I said: 'Polo'") ;
  } else {

    // Send it back
    terminal.print("You said:");
    terminal.write(param.getBuffer(), param.getLength());
    terminal.println();
  }

  // Ensure everything is sent
  terminal.flush();
}

void setup()
{
  // Debug console
  SwSerial.begin(9600);

  // Blynk will work through Serial
  // Do not read or write this serial manually in your sketch
  Serial.begin(9600);
  Blynk.begin(Serial, auth);

  // Clear the terminal content
  terminal.clear();

  // This will print Blynk Software version to the Terminal Widget when
  // your hardware gets connected to Blynk Server
  terminal.println(F("Blynk v" BLYNK_VERSION ": Device started"));
  terminal.println(F("-------------"));
  terminal.println(F("Type 'Marco' and get a reply, or type"));
  terminal.println(F("anything else and get it printed back."));
  terminal.flush();
}

void loop()
{
  Blynk.run();
}

Thanks a lot for your help!
Eric

Not sure if it’s relevant, but the current highest version of the Blynk C++ library is 0.6.1

Pete.

Hi Pete,

Thanks for your quick answer, really appreciated.
I actually got an answer from the platform.io forum: https://community.platformio.org/t/problem-compiling-blynk-lib-arduino/17734

You’re right, the latest version available within the Arduino IDE is 0.6.1 but for whatever reason when you import the Blynk lib from PIO it does install the 0.6.5 which is buggy (see the link to the PIO thread)

You can also check here the GH request that has been opened by the person who answered me on the PIO forum: https://github.com/blynkkk/blynk-library/issues/505

Thanks again for your answer, I will try out one of the workarounds mentioned in the PIO thread while the bug is being fixed.

1 Like

At the moment I have uninstalled the latest 0.6.5 (It was released 5 days ago) and installed the 0.6.1…no more build issues