Send_Message examples throw missing header files error (ESP8266)

[reinlten]

Hey, Im using Arduino Uno to program ESP8266 to send messages to my phone via FCM.
After inserting all keywords i got the following error for both the legacy and HTTPv1 examples:

C:...\Firebase-ESP-Client-main\src/Firebase_ESP_Client.h:42:17: fatal error: No such file or directory
#include <ETH.h>

I editet the file "Firebase_ESP_Client.h", so that ETH.h will not be imported. The program compiled properly.
I got it working for the HTTPv1 Protocol, but not for legacy, but its possible that there are non related problems.

[mobizt]

This library is for ESP8266 and ESP32.
You need to install the ESP8266 Core SDK and choose the ESP8266 board.

[mobizt]

Ok you are right I accidently edit the source to include ethernet to test but forgot to remove it when publish.

[mobizt]

The library updated.
The legacy API, you need to use Server Key from Firebase console.

[reinlten]

Okay thanks.
I have both the server key and device token inserted and it didn't work, however HTTPv1 works fine for me.

[mobizt]

The legacy FCM works normally. Please check the example.
You may provide invalid server key which this already stated in the Firebase FCM document.

[mobizt]

The HTTPv1 uses OAuth2.0 for authenticate while the legacy API authentication uses the sever key as in the old 2 years library and no problem with that.