Fresh esp8266 HelloServer does not compile

[thl-mot]

I have a fresh installation of Sloeber 4.4.3, With Fresh sample project of ESP2866WebServer/HelloServer based on esp8266 in Version 2.7.4

The scetch does not compile with a whole bunch of errors all looking like
/home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/hardware/esp8266/2.7.4/libraries/ESP8266WiFi/src/WiFiUdp.cpp:148: multiple definition of WiFiUDP::beginPacket(IPAddress, unsigned short)'; ./libraries/WiFi/src/WiFiUdp.cpp.o:/home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/libraries/WiFi/1.2.7/src/WiFiUdp.cpp:87: first defined here
/home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/tools/xtensa-lx106-elf-gcc/2.5.0-4-b40a506/bin/../lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld: ./libraries/ESP8266WiFi/src/WiFiUdp.cpp.o: in function WiFiUDP::stop()': /home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/hardware/esp8266/2.7.4/libraries/ESP8266WiFi/src/WiFiUdp.cpp:129: multiple definition of WiFiUDP::stop()'; ./libraries/WiFi/src/WiFiUdp.cpp.o:/home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/libraries/WiFi/1.2.7/src/WiFiUdp.cpp:65: first defined here
/home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/tools/xtensa-lx106-elf-gcc/2.5.0-4-b40a506/bin/../lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld: ./libraries/ESP8266WiFi/src/WiFiUdp.cpp.o: in function WiFiUDP::begin(unsigned short)': /home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/hardware/esp8266/2.7.4/libraries/ESP8266WiFi/src/WiFiUdp.cpp:77: multiple definition of WiFiUDP::begin(unsigned short)'; ./libraries/WiFi/src/WiFiUdp.cpp.o:/home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/libraries/WiFi/1.2.7/src/WiFiUdp.cpp:38: first defined here
/home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/tools/xtensa-lx106-elf-gcc/2.5.0-4-b40a506/bin/../lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld: ./libraries/ESP8266WiFi/src/WiFiUdp.cpp.o: in function WiFiUDP::parsePacket()': /home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/hardware/esp8266/2.7.4/libraries/ESP8266WiFi/src/WiFiUdp.cpp:193: multiple definition of WiFiUDP::parsePacket()'; ./libraries/WiFi/src/WiFiUdp.cpp.o:/home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/libraries/WiFi/1.2.7/src/WiFiUdp.cpp:117: first defined here
/home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/tools/xtensa-lx106-elf-gcc/2.5.0-4-b40a506/bin/../lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld: ./libraries/ESP8266WiFi/src/WiFiUdp.cpp.o: in function WiFiUDP::WiFiUDP()': /home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/hardware/esp8266/2.7.4/cores/esp8266/Print.h:47: multiple definition of WiFiUDP::WiFiUDP()'; ./libraries/WiFi/src/WiFiUdp.cpp.o:/home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/hardware/esp8266/2.7.4/cores/esp8266/Print.h:47: first defined here
/home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/tools/xtensa-lx106-elf-gcc/2.5.0-4-b40a506/bin/../lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld: ./libraries/ESP8266WiFi/src/WiFiUdp.cpp.o: in function WiFiUDP::WiFiUDP()': /home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/hardware/esp8266/2.7.4/cores/esp8266/Print.h:47: multiple definition of WiFiUDP::WiFiUDP()'; ./libraries/WiFi/src/WiFiUdp.cpp.o:/home/thomas/entwicklung/ides/Sloeber/arduinoPlugin/packages/esp8266/hardware/esp8266/2.7.4/cores/esp8266/Print.h:47: first defined here
collect2: error: ld returned 1 exit status
make: *** [makefile:122: beamer.elf] Error 1
"make all" terminated with exit code 2. Build might be incomplete.
`

On Arduino IDE with same board everything works fine. Other examples like blink also work properly in Sloeber.

I can't figure out why this happens on a fresh Sloeber installation (now tryed this on my third machine based on kubuntu).

Can anybody please give me a hint where to look?

[jantje]

It looks like Sloeber added the wifi library to your project. You can find it under the libraties folder of your project.
You can simply delete the wifi folder there

[PerennialNovice]

I had the same issue, only deleting does not help, since Sloeber decided that the WiFi lb is needed and adds it immediately again.
So make sure to also disable automatic adding of libraries in the sloeber preferences

Furthermore, I had to add #pragma once to the secrets.h and builtinfiles.h

hope this helps

[jantje]

So make sure to also disable automatic adding of libraries in the sloeber preferences

If Sloeber keeps on adding unwanted libraries and you do not want to disable this feature you can rightclick the library folder in the project explorer to exclude it from the build.

[PerennialNovice]

thanks, didn't think of that :)

[PerennialNovice]

Behaviour with V5 is different, though:

Wifi library does not get included and the secrets.h and builtinfiles.h headers need no modification

But you have to edit a bunch of files in the littlefs library. Files in the /bd subfolder need to have the includes modified...
Everything that has an #include bd/xxxxxx.h needs to have the bd/ removed and includes that refer to the parent directory of /bd need to have ../ added before xxx.h

[jantje]

But you have to edit a bunch of files in the littlefs library. Files in the /bd subfolder need to have the includes modified...
Everything that has an #include bd/xxxxxx.h needs to have the bd/ removed and includes that refer to the parent directory of /bd need to have ../ added before xxx.h

Are you sure this is different behavior between Sloeber V4 and V5 and not caused by a different littlefs library version?
Because if not; I would like to fix this in V5.

[jantje]

I'm trying to recreate this situation but I can't find the library with the library manager.

How do you install this littlefs lib?
Are you sure you didn't use exclude from build to exclude the lib folder in Sloeber V4?

[PerennialNovice]

It came with the ESP8266 Webserver example, so you need to have ESP8266 package installed

To be honest I am not 100% sure, but quite sure.
I suppose that if I manually chose to exclude it, it will not be excluded on a newly created project?
Because, that is what I just did, and the example and lib subfolder got excluded during (or as a result of?) indexing after the creation

[jantje]

Stupid me
It is a library provided with the board.
I noticed V4 indeed excludes the lib folder from the build

[jantje]

Looking a bit deeper it looks like there is some "automatic exclude from build" code in V4.
What I mean is that Sloeber V4 adds a specific rule for littlefs/lib (the rule is libraries/littlefs/lib and not a generic libraries/?*/lib) to the exclude folders.

[jantje]

I found V4 exclude all subfolders except for src. V5 doesn't.
I added a exclude rule for lib in V5
I need to reflect on what is the best way to exclude all the subfolders