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There is a problem running a simple SPIFFS file system code on different versions of the Arduino IDE, as code shown below. In Arduino IDE version 1.8.4, works fine. No longer version 1.8.9, can not run. ESP8266 IDE Arduino version 1.8.9

#include <FS.h>   

void setup() {
  Serial.begin(115200);
  Serial.println();
  Serial.println("Init...");
  Serial.println();

  // Always get ERROR on init SPIFFS
  if (!SPIFFS.begin()) {
    Serial.println("SPIFFS.begin error...");
  } else {
    Serial.println("SPIFFS.begin OK!");
  }
}
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  • So you have spiffs turned on in the IDE settings?
    – Majenko
    Jun 19, 2019 at 17:04
  • Where can I check that in IDE?
    – wBB
    Jun 19, 2019 at 17:06
  • in Tools menu the "Flash size" option
    – Juraj
    Jun 19, 2019 at 17:07
  • 1
    OK. It works: Tools -> Flash size 4M (1M SPIFFS). Thanks!!!!
    – wBB
    Jun 19, 2019 at 17:11

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