Error compiling for wemos D1 mini

[sagaardu]

Hi, I am getting this error compiling a sketch for a wemos D1 mini.

What could be the cause of the problem?

This is the code:

IotWebConf            iotWebConf(thingName.c_str(), &dnsServer, &server, wifiInitialApPassword, "JamesOGorman");
IotWebConfParameter   mqttServerParam = IotWebConfParameter("MQTT server", "mqttServer", mqttServer, sizeof(mqttServer) );
IotWebConfParameter   mqttUserNameParam = IotWebConfParameter("MQTT username", "mqttUser", mqttUserName, sizeof(mqttUserName));
IotWebConfParameter   mqttUserPasswordParam = IotWebConfParameter("MQTT password", "mqttPass", mqttUserPassword, sizeof(mqttUserPassword), "password");
IotWebConfParameter   mqttTopicParam = IotWebConfParameter("MQTT Topic", "mqttTopic", mqttTopicPrefix, sizeof(mqttTopicPrefix));

And this is error:

notifier_wemos:124: error: 'IotWebConfParameter' does not name a type

 IotWebConfParameter   mqttServerParam = IotWebConfParameter("MQTT server", "mqttServer", mqttServer, sizeof(mqttServer) );

 ^

notifier_wemos:125: error: 'IotWebConfParameter' does not name a type

 IotWebConfParameter   mqttUserNameParam = IotWebConfParameter("MQTT username", "mqttUser", mqttUserName, sizeof(mqttUserName));

 ^

notifier_wemos:126: error: 'IotWebConfParameter' does not name a type

 IotWebConfParameter   mqttUserPasswordParam = IotWebConfParameter("MQTT password", "mqttPass", mqttUserPassword, sizeof(mqttUserPassword), "password");

 ^

notifier_wemos:127: error: 'IotWebConfParameter' does not name a type

 IotWebConfParameter   mqttTopicParam = IotWebConfParameter("MQTT Topic", "mqttTopic", mqttTopicPrefix, sizeof(mqttTopicPrefix));

 ^

C:\Users\usuario\AppData\Local\Temp\arduino_modified_sketch_306604\notifier_wemos.ino: In function 'void setup()':

notifier_wemos:144: error: 'class iotwebconf::IotWebConf' has no member named 'addParameter'

   iotWebConf.addParameter(&mqttServerParam);

              ^

notifier_wemos:144: error: 'mqttServerParam' was not declared in this scope

   iotWebConf.addParameter(&mqttServerParam);

                            ^

notifier_wemos:145: error: 'class iotwebconf::IotWebConf' has no member named 'addParameter'

   iotWebConf.addParameter(&mqttUserNameParam);

              ^

notifier_wemos:145: error: 'mqttUserNameParam' was not declared in this scope

   iotWebConf.addParameter(&mqttUserNameParam);

                            ^

notifier_wemos:146: error: 'class iotwebconf::IotWebConf' has no member named 'addParameter'

   iotWebConf.addParameter(&mqttUserPasswordParam);

              ^

notifier_wemos:146: error: 'mqttUserPasswordParam' was not declared in this scope

   iotWebConf.addParameter(&mqttUserPasswordParam);

                            ^

notifier_wemos:147: error: 'class iotwebconf::IotWebConf' has no member named 'addParameter'

   iotWebConf.addParameter(&mqttTopicParam);

              ^

notifier_wemos:147: error: 'mqttTopicParam' was not declared in this scope

   iotWebConf.addParameter(&mqttTopicParam);

                            ^

notifier_wemos:149: error: no matching function for call to 'iotwebconf::IotWebConf::setFormValidator(boolean (*)())'

   iotWebConf.setFormValidator(&formValidator);

                                             ^

C:\Users\usuario\AppData\Local\Temp\arduino_modified_sketch_306604\notifier_wemos.ino:149:45: note: candidate is:

In file included from C:\Users\usuario\AppData\Local\Temp\arduino_modified_sketch_306604\notifier_wemos.ino:76:0:

C:\Users\usuario\Documents\Arduino\libraries\IotWebConf-master\src/IotWebConf.h:301:8: note: void iotwebconf::IotWebConf::setFormValidator(std::function<bool(iotwebconf::WebRequestWrapper*)>)

   void setFormValidator(std::function<bool(WebRequestWrapper* webRequestWrapper)> func);

        ^

C:\Users\usuario\Documents\Arduino\libraries\IotWebConf-master\src/IotWebConf.h:301:8: note:   no known conversion for argument 1 from 'boolean (*)() {aka bool (*)()}' to 'std::function<bool(iotwebconf::WebRequestWrapper*)>'

C:\Users\usuario\AppData\Local\Temp\arduino_modified_sketch_306604\notifier_wemos.ino: In function 'void wifiConnected()':

notifier_wemos:407: error: 'class PubSubClient' has no member named 'setBufferSize'

   mqttClient.setBufferSize(MQTT_MSG_SIZE);

              ^

C:\Users\usuario\AppData\Local\Temp\arduino_modified_sketch_306604\notifier_wemos.ino: In function 'boolean formValidator()':

notifier_wemos:414: error: 'mqttServerParam' was not declared in this scope

   int l = server.arg(mqttServerParam.getId()).length();

[prampec]

You might want to use an older code with a newer IotWebConf version (3.x.x). Now, with 3.0.0 namespaces are introduced. In short the name IotWebConfParameter were renamed to iotwebconf::Parameter. For older codes (like yours) there is a helper header file #include <IotWebConfUsing.h>, that creates aliases, so you can still use IotWebConfParameter.

Also check the Namespaces section of the migration guide: https://github.com/prampec/IotWebConf/blob/master/doc/MigrationGuide-v3.0.0.md#namespaces

(This issue still valid however, as examples are still using the "old" format via the aliases.