Arduino IDE 1.8.9 ERROR

hi

by programming a ESP8266 Thing Dev I get now Fatal Error

the fist 3 ESP8266 Thing Dev I had programmed with the same equipment was no problems also the several updates

but now I want go to a new project I get troubles also with the same ESP8266 AND with the “old” Sketch too!!! Why???

whats happen?

ERROR Message:

Arduino: 1.8.9 (Mac OS X), Board: “Generic ESP8266 Module, 80 MHz, Flash, Disabled, All SSL ciphers (most compatible), nodemcu, 40 MHz, 80MHz, DIO, 512K (no SPIFFS), 1, nonos-sdk 2.2.1 (legacy), v2 Lower Memory, Disabled, None, Only Sketch, 115200”

TRACE +0.106 Timed out waiting for packet header

Traceback (most recent call last):

File “/Users/maxmueller/Library/Arduino15/packages/esp8266/hardware/esp8266/2.5.2/tools/upload.py”, line 25, in

esptool.main(fakeargs)

File “/Users/maxmueller/Library/Arduino15/packages/esp8266/hardware/esp8266/2.5.2/tools/esptool/esptool.py”, line 2653, in main

esp.connect(args.before)

File “/Users/maxmueller/Library/Arduino15/packages/esp8266/hardware/esp8266/2.5.2/tools/esptool/esptool.py”, line 468, in connect

raise FatalError(‘Failed to connect to %s: %s’ % (self.CHIP_NAME, last_error))

esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header

esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header

_

stupid question : but did you close the programming jumper on the ESP8266?

yesssss!!!