Compilation for Wemos D1 fails.

[Willem Nijntjes]

I try to use the EspMQTTclient library on a Wemos D1 mini.
Got the message: Error compiling for board LOLIN(WEMOS) D1 & mini.

Can this problem get fixed please?

[Patrick Lapointe]

Hello,
The library compile for me with a D1 Mini. Please give me more details about the error message.

[Willem Nijntjes]

Hello Plapointe, this is all I got. I’m running the Arduino 1.8.13 on a Debian OS on a Raspberry-PI4. The Wemos is connected to the PI4 via a USB cable. When I leave out the #include EspMQTTclient.h there is no problem and the code is uploaded to the Wemos and runs.

[Willem Nijntjes]

Patrick, after some further testing I found that all of the various ESP boards are giving this error. Again, this is on a Debian Buster version running on a PI4. IDE 1.8.13. Groeten, Wim

…

Op 23 feb. 2021 om 21:29 heeft Patrick Lapointe ***@***.***> het volgende geschreven:  Hello, The library compile for me with a D1 Mini. Please give me more details about the error message. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[pauled23]

I'm also seeing an error when compiling for ESP-01 when compiling SimpleMQTTClient.ino:

/home/USER/Arduino/libraries/EspMQTTClient/src/EspMQTTClient.cpp: In member function 'void EspMQTTClient::onWiFiConnectionLost()':
/home/USER/Arduino/libraries/EspMQTTClient/src/EspMQTTClient.cpp:358:10: error: 'class MDNSResponder' has no member named 'end'
     MDNS.end();
          ^
exit status 1
Error compiling for board Generic ESP8266 Module.

[Willem Nijntjes]

So I’m glad that I’m not the only one. Groeten, Wim

…

Op 24 feb. 2021 om 09:38 heeft pauled23 ***@***.***> het volgende geschreven:  I'm also seeing an error when compiling for ESP-01 when compiling SimpleMQTTClient.ino: /home/USERArduino/libraries/EspMQTTClient/src/EspMQTTClient.cpp: In member function 'void EspMQTTClient::onWiFiConnectionLost()': /home/USER/Arduino/libraries/EspMQTTClient/src/EspMQTTClient.cpp:358:10: error: 'class MDNSResponder' has no member named 'end' MDNS.end(); ^ exit status 1 Error compiling for board Generic ESP8266 Module. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[Patrick Lapointe]

It's quite odd, I am not able to reproduce this issue on my side.

Can you reply with the version of the esp8266 core you use ?

A quick workaround for now could be to open EspMQTTClient.cpp and comment line no. 358 MDNS.end();

[Willem Nijntjes]

Patrick, I replaced my EsppMQTTClient set and the PuSuBClient with a set from a friend of mine. On his system there is no problem. He is also running the Arduino 1.8.13 version IDE. We both run it on a Raspberry PI. Groeten, Wim

…

Op 24 feb. 2021 om 17:23 heeft Patrick Lapointe ***@***.***> het volgende geschreven:  It's quite odd, I am not able to reproduce this issue on my side. Can you reply with the version of the esp8266 core you use ? A quick workaround for now could be to open EspMQTTClient.cpp and comment line no. 358 MDNS.end(); — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[Willem Nijntjes]

Problem solved.
Cause of the problem was pubsubclient was not found.
It was located local. After moving it to the Arduino/libraries/ problem was gone.

[Patrick Lapointe]

Great 👍