'Ethernet' is ambiguous using QNEthernet.h

[burtamus2003]

I'm using the QNEthernet.h library on my Teensy 4.1 with Ethernet. As soon as I include the MySQL_Connection.h and compile it, it throws an error that 'Ethernet' is ambiguous. Any ideas would be appreciated.

myApp:312: error: reference to 'Ethernet' is ambiguous
             if (!Ethernet.begin()) {
                  ^
In file included from C:\Users\me\Documents\Arduino\libraries\MySQL_Connector_Arduino\src/MySQL_Packet.h:44:0,
                 from C:\Users\me\Documents\Arduino\libraries\MySQL_Connector_Arduino\src/MySQL_Connection.h:39,
                 from C:\Users\me\Documents\Arduino\myApp\myApp.ino:17:
C:\Users\me\Documents\Arduino\libraries\Ethernet\src/Ethernet.h:147:22: note: candidates are: EthernetClass Ethernet
 extern EthernetClass Ethernet;
                      ^

[ChuckBell]

Hi,

It appears you may have another library with the same name. Find the duplicates and disable/remove the one you do not need. Or, more correctly, change the #include to include the correct Ethernet class. Removing the one you do not need is easier, though.

Dr. Bell

On Sep 5, 2022, at 6:36 PM, burtamus2003 @.***> wrote:

I'm using the QNEthernet.h library on my Teensy 4.1 with Ethernet. As soon as I include the MySQL_Connection.h and compile it, it throws an error that 'Ethernet' is ambiguous. Any ideas would be appreciated.

myApp:312: error: reference to 'Ethernet' is ambiguous if (!Ethernet.begin()) { ^ In file included from C:\Users\me\Documents\Arduino\libraries\MySQL_Connector_Arduino\src/MySQL_Packet.h:44:0, from C:\Users\me\Documents\Arduino\libraries\MySQL_Connector_Arduino\src/MySQL_Connection.h:39, from C:\Users\me\Documents\Arduino\myApp\myApp.ino:17: C:\Users\me\Documents\Arduino\libraries\Ethernet\src/Ethernet.h:147:22: note: candidates are: EthernetClass Ethernet extern EthernetClass Ethernet; ^

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[burtamus2003]

So, let me get this straight. Just by “including” your library (a single line of code) that blows up my program, I have an issue with my code. It works perfectly fine without including your lib. Hmmmm Sent with auto-corruption from my iPhoneOn Sep 5, 2022, at 17:40, Dr. Charles Bell @.***> wrote: Hi,

It appears you may have another library with the same name. Find the duplicates and disable/remove the one you do not need. Or, more correctly, change the #include to include the correct Ethernet class. Removing the one you do not need is easier, though.

Dr. Bell

On Sep 5, 2022, at 6:36 PM, burtamus2003 @.***> wrote:

I'm using the QNEthernet.h library on my Teensy 4.1 with Ethernet. As soon as I include the MySQL_Connection.h and compile it, it throws an error that 'Ethernet' is ambiguous. Any ideas would be appreciated.

myApp:312: error: reference to 'Ethernet' is ambiguous if (!Ethernet.begin()) { ^ In file included from C:\Users\me\Documents\Arduino\libraries\MySQL_Connector_Arduino\src/MySQL_Packet.h:44:0, from C:\Users\me\Documents\Arduino\libraries\MySQL_Connector_Arduino\src/MySQL_Connection.h:39, from C:\Users\me\Documents\Arduino\myApp\myApp.ino:17: C:\Users\me\Documents\Arduino\libraries\Ethernet\src/Ethernet.h:147:22: note: candidates are: EthernetClass Ethernet extern EthernetClass Ethernet; ^

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[ChuckBell]

No, it means you have to decide which Ethernet library you want to use. Read the code and documentation concerning modifying the code to adapt it to your platform. I do not have a Teensy board else I’d try it myself. Hint: see the #include in the connector code. Fix that first.

Sent from my iPad

On Sep 18, 2022, at 21:01, burtamus2003 @.***> wrote:

 So, let me get this straight. Just by “including” your library (a single line of code) that blows up my program, I have an issue with my code. It works perfectly fine without including your lib. Hmmmm Sent with auto-corruption from my iPhoneOn Sep 5, 2022, at 17:40, Dr. Charles Bell @.***> wrote: Hi,

It appears you may have another library with the same name. Find the duplicates and disable/remove the one you do not need. Or, more correctly, change the #include to include the correct Ethernet class. Removing the one you do not need is easier, though.

Dr. Bell

On Sep 5, 2022, at 6:36 PM, burtamus2003 @.***> wrote:

I'm using the QNEthernet.h library on my Teensy 4.1 with Ethernet. As soon as I include the MySQL_Connection.h and compile it, it throws an error that 'Ethernet' is ambiguous. Any ideas would be appreciated.

myApp:312: error: reference to 'Ethernet' is ambiguous if (!Ethernet.begin()) { ^ In file included from C:\Users\me\Documents\Arduino\libraries\MySQL_Connector_Arduino\src/MySQL_Packet.h:44:0, from C:\Users\me\Documents\Arduino\libraries\MySQL_Connector_Arduino\src/MySQL_Connection.h:39, from C:\Users\me\Documents\Arduino\myApp\myApp.ino:17: C:\Users\me\Documents\Arduino\libraries\Ethernet\src/Ethernet.h:147:22: note: candidates are: EthernetClass Ethernet extern EthernetClass Ethernet; ^

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