'base64_encode' was not declared in this scope

3 years 3 months ago #3189 by EasyIoT

Adamyno wrote: I tried the ESP8266 WiFi DS18B20 temperature sensor example, after verification in Arduino IDE I get an error message:

'base64_encode' was not declared in this scope

I tried Arduino IDE 1.6.5, 1.6.7, and 1.6.8 but no changes.
What can be wrong?


Do you have Base64 lib? See this thread:
iot-playground.com/forum/esp8266-easyiot...base64-h-help-please

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3 years 3 months ago #3192 by Adamyno
Yes, I have this: github.com/adamvr/arduino-base64
I tried that #2283 also but nothing :unsure:

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3 years 3 months ago #3196 by chocjulio33
I solved this by downloading the base64 library from forum here and extracting it to the arduino sketch folder i was working in and changing the include to from this

#include <Base64.h>

to This
#include "Base64.h"

not the best solution but im working in arduino 1.6.4! Also remember arduino can have two library folders and base64 can conflict if in both! also I found base64 references in the iot code conflicting! Make sure you find a combo that works!

Chocjulio

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3 years 3 months ago #3202 by Adamyno
Unfortunately it doesn't help.

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3 years 3 months ago #3203 by chocjulio33
it worked for me no problems make sure you delete the following base64 and easyiot libraries from

C:\Program Files (x86)\Arduino\libraries

Also confirm they do not exit in you Arduino Documents Folder located in

C:\Users\chocjulio\Documents\Arduino\libraries

Now create a new arduino project in

C:\Users\chocjulio\Documents\Arduino\NewESP8266Project\

Copy your arduino sketch and the contents of the base64.zip to this new folder remember arduino wants the sketchname to match the folder name
if that doesnt work i would uninstall arduino delete and residual folders and start over it will work! Or atleast it did for me!

Chocjulio

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3 years 3 months ago #3204 by chocjulio33
Here is my code example of how i solved this! Compiles fine in 1.6.4
Attachments:

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