Including FirebaseArduino and ArduinoJson causes redefinition errors

[ChrisAlphabet]

Hi all,

I am working on a project that uses both FirebaseArduino and ArduinoJson libraries.

When I try to include ArduinoJson.h I get the the error that it has already been included in \path-to-libs\firebase-arduino\src\third-party\arduino-json-5.3\include\ArduinoJson\etc

Is there a nice way to use these two libraries together? At the moment I am including FirebaseArduino.h where I need to use ArduinoJson.h which is not a particularly nice solution.

Thanks!

[jason7sc]

FirebaseArduino includes support for ArduinoJson. Simply include FirebaseArduino and create JSON data following the encoding procedure explained in the ArduinoJson documentation.

[andreantivilo]

@jason7sc you saved me. I was also adding ArduinoJson.h in the code.
I do not use the official lib, just Firebase library.
Now everything works fine: Firebase, ArduinoJson, ESP8266, NodeMCU.

[shubham-kulkarni]

Hello, i am using nodemcu and firebase for my project.
i have downloaded Arduino-Firebase Master library from GitHub. it gets included but i get -> "
C\users\PC\Documents\Arduino\libraries\firebase-arduino-master\src/Firebase.h:26:25: fatal error: ArduinoJson.h: No such file or directory
#include <ArduinoJson.h> " this error.

i tried only ->

#include <ESP8266WiFi.h>
#include <FirebaseArduino.h>
void setup() {}
void loop() {}

this code. i have problems including the <FirebaseArduino.h> library

i tried inclding ArduinoJson library seperately. also tried it on win 7, win 8.1, and win 10.
also tried Arduino ide 1.6.7, 1.6.9 and 1.6.12
@andreantivilo as you said, "I do not use the official lib, just Firebase library." , i didn't get it.
@jason7sc @andreantivilo
will you plz help me i am unable to resolve my issue.

[kotl]

Same as #314

Please download latest stable ArduinoJson from library manager.

[kotl]

Starting with #296 ArduinoJson is no longer included in Firebase-arduino, you should choose your own version of ArduinoJson, as stated in main README: https://github.com/firebase/firebase-arduino

[shubham-kulkarni]

@kotl thank you. Looks like ArduinoJson library that I was using previously, was the problem.
I used ArduinoJson library from https://github.com/bblanchon/ArduinoJson as you suggested. It worked. Thank You So Much!

[proppy]

Marking this as fixed now that ArduinoJson dependencies is documented.

[microflorin]

Hello all,
I'm traing to connect ESP8266 E12 with Firebase but doesn't work. I updated the library and still doesn't work. The code is ESP8266 Demo.

#include <ESP8266WiFi.h>
#include <FirebaseArduino.h>

#define FIREBASE_HOST "testflorinm.firebaseio.com"

I must include something else? The response in serial monitor is this one:
setting /number failed:
setting /number failed:

Can someone help me with this?

[andreantivilo]

// Firebase data
#define FIREBASE_HOST "XXXX.firebaseio.com"
#define FIREBASE_AUTH "YOUR-AUTH-TOKEN"

[microflorin]

#define FIREBASE_HOST "XXXX.firebaseio.com"
#define FIREBASE_AUTH "YOUR-AUTH-TOKEN"

are defined but the answer from firebase is the same.

[proppy]

@microflorin this seems similar to #357 can you provide more details about the failure and comment there?

For example try to turn-on HTTP debugging:
http://arduino-esp8266.readthedocs.io/en/latest/Troubleshooting/debugging.html

[mase12]

Hello all,
help me please. i'am beginer

how to solve this problem in nodemcu esp8266 to firebase:

C:\Users\poex\Documents\Arduino\libraries\firebase-arduino-master\src\FirebaseObject.cpp: In constructor 'FirebaseObject::FirebaseObject(const char*)':
C:\Users\poex\Documents\Arduino\libraries\firebase-arduino-master\src\FirebaseObject.cpp:23:26: error: 'class ArduinoJson::StaticJsonBuffer<1032u>' has no member named 'parse'

json_ = buffer_.get()->parse(&data_[0]);

                      ^

exit status 1
Error compiling for board NodeMCU 1.0 (ESP-12E Module).

thank you

[haseeAmarathunga]

Remove your previous ArduinoJson library and Include your ArduinoJson library to this https://github.com/bblanchon/ArduinoJson . It will work!

[iramtaher]

hi, i am a new coder and working on a project on NodeMCU on arduino IDE to work with firebase. I have followed a youtube tutorial exactly the way they did it and have included ArduinoJson library (ver 5.13.1) and ArduinoFirebase library but i am getting error compiling my ESP8266, with some very long error messages. My code is as below. If i exclude the Json library, it compiles and connects to internet but fails to send the data to firebase. However, when i include the Json library i get error compiling. Can someone please help me regarding this

`#include <ArduinoJson.h>
#include <ESP8266WiFi.h>
#include <FirebaseArduino.h>
#include <ESP8266HTTPClient.h>

#define FIREBASE_HOST "https://try-to-send-data.firebaseio.com/"
#define FIREBASE_AUTH "ujYlWZOntaPh1maEARcW0L7x9w2B9Rk6YXUIXwJq"

long randNumber;

void setup() {

Serial.begin(9600);
delay(500);
WiFi.begin("S4LINK3", "mywifipassword");
Serial.println("");
Serial.print("Connecting");
while (WiFi.status() != WL_CONNECTED) {
Serial.print(".");
delay(2000);
}
Serial.println("");
Serial.print("Successfully connected to : ");
Serial.print("S4LINK3");
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
Serial.println();
Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
}

void loop() {
randNumber = random(100, 1000);
String dataSend = String(randNumber);
Serial.print("Random Number : ");
Serial.println(dataSend);
Firebase.setString("RandomVal/Value",String(dataSend));
if (Firebase.failed()) {
Serial.print("Setting /Value failed :");
Serial.println(Firebase.error());
delay(500);
return;
}
Serial.println("Setting successful");
Serial.println();

}`

[Shidqinfl]

hi, i am a new coder and working on a project on NodeMCU on arduino IDE to work with firebase. I have followed a youtube tutorial exactly the way they did it and have included ArduinoJson library (ver 5.13.1) and ArduinoFirebase library but i am getting error compiling my ESP8266, with some very long error messages. My code is as below. If i exclude the Json library, it compiles and connects to internet but fails to send the data to firebase. However, when i include the Json library i get error compiling. Can someone please help me regarding this

i just erase this library #include <ArduinoJson.h> and my arduino ide can compile properly
but i got new trouble, my prject esp8266 can't send data to firebase and my firebase doesnt update the data from esp8266