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arendst / Tasmota

Alternative firmware for ESP8266 and ESP32 based devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at
https://tasmota.github.io/docs
GNU General Public License v3.0
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#error "MQTT_MAX_PACKET_SIZE is too small in libraries/PubSubClient/src/PubSubClient.h, increase it to at least 427" #192

Closed Slip7000 closed 7 years ago

Slip7000 commented 7 years ago

Morning All,

Please assist I'm trying to load the latest firmware onto a Sonoff via Arduino and getting this error:

error "MQTT_MAX_PACKET_SIZE is too small in libraries/PubSubClient/src/PubSubClient.h, increase it to at least 427"

Thank you @Slip7000

davidelang commented 7 years ago

The error message is straightforward, you need to edit the file PubSubClient.h and change the value of MQTT_MAX_PACKET_SIZE to be at least 427.

Have you tried to do this?

On Sun, 12 Mar 2017, Slip7000 wrote:

Please assist I'm trying to load the latest firmware onto a Sonoff via Arduino and getting this error:

error "MQTT_MAX_PACKET_SIZE is too small in libraries/PubSubClient/src/PubSubClient.h, increase it to at least 427"

Slip7000 commented 7 years ago

Where can I find the this PubSubClient.h file ?

Slip7000 commented 7 years ago

This is the Complete error:

Arduino: 1.6.12 (Mac OS X), Board: "Generic ESP8266 Module, 80 MHz, 40MHz, DIO, 115200, 1M (64K SPIFFS), ck, Disabled, None"

sonoff:148: error: #error "MQTT_MAX_PACKET_SIZE is too small in libraries/PubSubClient/src/PubSubClient.h, increase it to at least 427"

error "MQTT_MAX_PACKET_SIZE is too small in libraries/PubSubClient/src/PubSubClient.h, increase it to at least 427"

^

/Users/SlipPro/Box Sync/Sonoff/Sonoff-Tasmota-master/sonoff/sonoff.ino:155:75: fatal error: ArduinoJson.h: No such file or directory

include // WemoHue, IRremote, Domoticz

                                                                       ^

compilation terminated. exit status 1

error "MQTT_MAX_PACKET_SIZE is too small in libraries/PubSubClient/src/PubSubClient.h, increase it to at least 427"

This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.

davidelang commented 7 years ago

as the error message says, you find it in libraries/PubSubClient/src

This is where you installed the pubsub library as you were setting things up.

On Sun, 12 Mar 2017, Slip7000 wrote:

Where can I find the this PubSubClient.h file ?

davidelang commented 7 years ago

This is showing two error messages, first you set the variable larger, second you need to install the arduinoJson library.

On Sun, 12 Mar 2017, Slip7000 wrote:

Date: Sun, 12 Mar 2017 01:59:33 -0800 From: Slip7000 notifications@github.com Reply-To: arendst/Sonoff-Tasmota <reply+0021b24f6906735d9644ba49d5ed8d2bd73caf47d7ee470a92cf0000000114dcde0 592a169ce0cbb2dad@reply.github.com> To: arendst/Sonoff-Tasmota Sonoff-Tasmota@noreply.github.com Cc: davidelang david@lang.hm, Comment comment@noreply.github.com Subject: Re: [arendst/Sonoff-Tasmota] #error "MQTT_MAX_PACKET_SIZE is too small in libraries/PubSubClient/src/PubSubCli ent.h, increase it to at least 427" (#192)

This is the Complete error:

Arduino: 1.6.12 (Mac OS X), Board: "Generic ESP8266 Module, 80 MHz, 40MHz, DIO, 115200, 1M (64K SPIFFS), ck, Disabled, None"

sonoff:148: error: #error "MQTT_MAX_PACKET_SIZE is too small in libraries/PubSubClient/src/PubSubClient.h, increase it to at least 427"

error "MQTT_MAX_PACKET_SIZE is too small in libraries/PubSubClient/src/PubSubClient.h, increase it to at least 427"

^ /Users/SlipPro/Box Sync/Sonoff/Sonoff-Tasmota-master/sonoff/sonoff.ino:155:75: fatal error: ArduinoJson.h: No such file or directory

include // WemoHue, IRremote, Domoticz

                                                                      ^

compilation terminated. exit status 1

error "MQTT_MAX_PACKET_SIZE is too small in libraries/PubSubClient/src/PubSubClient.h, increase it to at least 427"

This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.

Slip7000 commented 7 years ago

ok I'm still having a problem, found the file and it was already at 512 like below

define MQTT_MAX_PACKET_SIZE 512

khcnz commented 7 years ago

I had this problem as well - are you on windows and using Arduino IDE? I found the same issue but Arduino IDE was using a copy in Documents/Arduino/Libraries/ and not Documents/Arduino/Sonoff-Tasmota/Libraries/

I ended up creating a junction from Documents/Arduino/Libraries/ to Documents/Arduino/Sonoff-Tasmota/Libraries/

Slip7000 commented 7 years ago

Thank you, I'll try tonight. I'm using Mac and did change the root Libraries in the options of Arduino but still getting the error. I also reinstalled the app completely, but will try on windows tonight.

Will let you know...

davidelang commented 7 years ago

IF you changed it and are still getting the error, then there is another copy of the library around somewhere on your system and the one you changed is not what the system is actually using.

On mac, you can do

find / -name PubSubClient.h

and have it report back all the places the library exists.

On Mon, 13 Mar 2017, Slip7000 wrote:

Thank you, I'll try tonight. I'm using Mac and did change the root Libraries in the options of Arduino but still getting the error. I also reinstalled the app completely, but will try on windows tonight.

Slip7000 commented 7 years ago

Thank you, got it working. I tried Atom and open the Sonoff file there changed the config and uploaded successful.

Thank you for everybody help