using your serial and web examples on nodeMCU causes an error...

[rhamblen]

I've had everything working using the basic examples you showed, but I get an error when using the serial and web examples.
When I complie using a DUO everything is fine, when I use the NodeMCU it reports an error...
section type conflict with __c
in looking into this it appears the apply() function is the issue and some definitions need to move to global and out of the function. esp8266/Arduino#2078
Is it worth addressing the problem if you are able to identify the cause?

[moose4lord]

I saw this problem as well. A workaround is presented in issue #3369 regarding using PROGMEM. For the esp8266_webinterface sketch, make the following changes:
Rename index.html.h to index.html.cpp and make this change at the top of the file:

#include <pgmspace.h>
char index_html[] PROGMEM = R"=====(

Similarly rename and change main.js.h:

#include <pgmspace.h>
char main_js[] PROGMEM = R"=====(

Then change the #include reference to these two files in esp8266_webinterface.ino to this:

extern char index_html[];
extern char main_js[]; 

This causes the PROGMEM global variables to be compiled in modules separate from the main ino module.

That worked for me.

[k1gavrilov]

Bro, you are the WIZARD!
Thank you!