ESP8266 ; compilation error

Using Arduino Programming Questions
1

I am trying to run some examples from the ESP8266 library , but constantly getting a number of error messages ,
that end : " ... ESP8266WiFi\src/WiFiClient.h:28:18:fatal error: memory : No such file or directory "

What's wrong ??

2

What's wrong ??

You posted no code. You posted only a snippet of the error message. The snippet of answer that I'd provide looks like:

You need to...

3

It's telling you that it can't find the WiFiClient.h header file. Usually, this comes from:

  1. not installing the WiFiClient library in the correct place
  2. installing a new library, but forgetting to restart the IDE after it is installed
  3. misspelling the file name (C is case-sensitive)
4

It's telling you that it can't find the WiFiClient.h header file.

Was that why the message included a line number and column position from WiFiClient.h?

5

PaulS:
Was that why the message included a line number and column position from WiFiClient.h?

Yep...I'll bet it was!

6

PaulS:
You posted no code. You posted only a snippet of the error message. The snippet of answer that I'd provide looks like:

You need to...

I got the code from the examples in the ESP8266 library , file ESP_Webserver_hello ,,,
just loaded it and tried to compile , changed nothing ; here is the beguinning :

#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WiFiClient.h>
#include <WiFiClientSecure.h>
#include <WiFiServer.h>
#include <WiFiUdp.h>

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>

const char* ssid = "3Webkontakt-00B8";

7

econjack:
It's telling you that it can't find the WiFiClient.h header file. Usually, this comes from:

  1. not installing the WiFiClient library in the correct place
  2. installing a new library, but forgetting to restart the IDE after it is installed
  3. misspelling the file name (C is case-sensitive)

Thanks for the answer ... but I am puzzled anyway ...

  1. Not correct place ... maybe ... which one is correct ? All other scetches work fine
    that I have created during a number of years and using several different libraries ...
  2. I have restarted the IDE number of times .. no change
  3. File name is not misspelled ; I have not created any code myself , instead
    trying a number of the examples supplied with the library
8

#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WiFiClient.h>
#include <WiFiClientSecure.h>
#include <WiFiServer.h>
#include <WiFiUdp.h>

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>

This is almost never a good idea...

9

econjack:
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WiFiClient.h>
#include <WiFiClientSecure.h>
#include <WiFiServer.h>
#include <WiFiUdp.h>

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>

This is almost never a good idea...

Yes , believed so too , but removing those double #includes does
not change anything ...still the same error message ...sigh