conflict with #include <ESP8266WiFi.h>

[Primus007]

i have compiled your ReadWrite example. It works fine.
Then i have added: #include <ESP8266WiFi.h>

If i compile i get some error:
ReadWrite:29:1: error: reference to 'File' is ambiguous

             File myFile;

              ^

             In file included from C:\Users\pl\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.1\libraries\ESP8266WiFi\src/CertStoreBearSSL.h:26:0,

             from C:\Users\pl\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.1\libraries\ESP8266WiFi\src/WiFiClientSecureBearSSL.h:30,

             from C:\Users\pl\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.1\libraries\ESP8266WiFi\src/WiFiClientSecure.h:41,

             from C:\Users\pl\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.1\libraries\ESP8266WiFi\src/WiFiServerSecure.h:20,

             from C:\Users\pl\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.1\libraries\ESP8266WiFi\src/ESP8266WiFi.h:41,

             from C:\Users\pl\AppData\Local\Temp\arduino_modified_sketch_675739\ReadWrite.ino:23:

             C:\Users\pl\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.1\cores\esp8266/FS.h:52:7: note: candidates are: class fs::File

             class File : public Stream

             In file included from F:\Eigene Dateien\Arduino\libraries\ESP8266SdFat-master\src/FatLib/FatLib.h:27:0,

             from F:\Eigene Dateien\Arduino\libraries\ESP8266SdFat-master\src/SdFat.h:33,

             from C:\Users\pl\AppData\Local\Temp\arduino_modified_sketch_675739\ReadWrite.ino:22:

              F:\Eigene Dateien\Arduino\libraries\ESP8266SdFat-master\src/FatLib/ArduinoFiles.h:125:7: note:                 class sdfat::File

              class File : public FatFile, public Stream {

              ReadWrite:29:1: error: 'File' does not name a type

              File myFile;

              C:\Users\pl\AppData\Local\Temp\arduino_modified_sketch_675739\ReadWrite.ino: In function 'void setup()':

              ReadWrite:49:3: error: 'myFile' was not declared in this scope

              myFile = SD.open("test.txt", FILE_WRITE);

              exit status 1
              reference to 'File' is ambiguous

`

Why does this not work with ESP8266WiFi.h ? I there any way to get it to work.

[Earle F. Philhower, III]

Again, as has been said in other repos before, please do not use the ESP8266SDFat stuff directly. They have a File which is incompatible with the Arduino File. Use the SDFS or SD filesystem.