error massage during compiling: 'ip_addr_t' does not name a type ip_addr_t dns_getserver(u8_t numdns);

[burkadius]

Arduino: 1.8.5 (Mac OS X), Board: "WeMos D1 R2 & mini, 80 MHz, 921600, 4M (3M SPIFFS)"

Sketch wird kompiliert...

In file included from /Users/marlisdrechsler/Documents/Arduino/ESP-sc-gway/ESP-sc-gway.ino:63:0: /Users/marlisdrechsler/Library/Arduino15/packages/esp8266/hardware/esp8266/2.3.0-rc2/tools/sdk/lwip/include/lwip/dns.h:104:54: error: 'ip_addr_t' has not been declared typedef void (dns_found_callback)(const char name, ip_addr_t ipaddr, void callback_arg); ^ /Users/marlisdrechsler/Library/Arduino15/packages/esp8266/hardware/esp8266/2.3.0-rc2/tools/sdk/lwip/include/lwip/dns.h:108:43: error: 'ip_addr_t' has not been declared void dns_setserver(u8_t numdns, ip_addr_t dnsserver); ^ /Users/marlisdrechsler/Library/Arduino15/packages/esp8266/hardware/esp8266/2.3.0-rc2/tools/sdk/lwip/include/lwip/dns.h:109:1: error: 'ip_addr_t' does not name a type ip_addr_t dns_getserver(u8_t numdns); ^ /Users/marlisdrechsler/Library/Arduino15/packages/esp8266/hardware/esp8266/2.3.0-rc2/tools/sdk/lwip/include/lwip/dns.h:110:56: error: 'ip_addr_t' has not been declared err_t dns_gethostbyname(const char hostname, ip_addr_t *addr, ^

Fehler beim Kompilieren für das Board WeMos D1 R2 & mini.

[burkadius]

Hi, can anybody help me to solve this problem? When I had compiled and installed the version 5.3.1 every think was fine but by the latest version 5.3.2 this problem occurs .I nothing have change, the same notebook, IDE etc. Thanks Burkhard

[platenspeler]

Hi,

Did you specify well and did you include all libraries? ip-addr-t is not used in the gateway code, so only in DNS library. It seems the library cannot find the definitions.

Maarten

[burkadius]

ok, I will check it. Thank You

[outthereandaway]

Hi,

I get the exact same error... I have all the libraries installed, I believe. How did you solve this issue? I just can't get it to compile... Thanks a lot!

I am using a LOLIN D1 mini.

/Users/nameofuser/Library/Arduino15/packages/esp8266/hardware/esp8266/2.3.0/tools/sdk/lwip/include/lwip/dns.h:109:1: error: 'ip_addr_t' does not name a type ip_addr_t dns_getserver(u8_t numdns); ^ /Users/nameofuser/Library/Arduino15/packages/esp8266/hardware/esp8266/2.3.0/tools/sdk/lwip/include/lwip/dns.h:110:56: error: 'ip_addr_t' has not been declared err_t dns_gethostbyname(const char hostname, ip_addr_t addr, ^ Multiple libraries were found for "WiFiUdp.h" Used: /Users/nameofuser/Library/Arduino15/packages/esp8266/hardware/esp8266/2.3.0/libraries/ESP8266WiFi Not used: /Applications/Arduino.app/Contents/Java/libraries/WiFi Not used: /Applications/Arduino.app/Contents/Java/libraries/WiFi Not used: /Applications/Arduino.app/Contents/Java/libraries/WiFi Not used: /Applications/Arduino.app/Contents/Java/libraries/WiFi exit status 1 Error compiling for board WeMos D1 R2 & mini.

[bv73]

error: 'ip_addr_t' has not been declared

I had this issue many months ago. I thought that this problem was solved. You need add one "include" line in ESP-sc-gway.ino like:

extern "C" {

include "user_interface.h" // !!! add in v5.2 - v5.3.3

include "lwip/err.h"

include "lwip/dns.h"

}

Versions 5.2; 5.3.1; 5.3.2 and 5.3.3 has this issue. I hope this solve is help you. With best wishes!

[outthereandaway]

Hey @VladimirBakum

It works!!! Thanks a lot!!! Problem solved.

Can't get WiFiManager.h to work... no idea why. But no intention to dig into that. Can live without wifimanager ;-)

All the best, cheers