Esp8266 Lolin Nodemcu V3 board compile error

I have used this a few times in the past several months without an issue.My computer took a hit and I had to reload some of the software. My issue is that I am not able to get my ESP8266 to compile .I hope I posted this correctly ,still a newbie at all this.I tried re-flashing the board using software found on arduino site, I reloaded CH341 software,updated Board manager and was able to see the board properly loaded on com5 .Been all over the net trying to figure it out also loaded a blank program to the board which wiped out any program it recently had. Open serial monitor at 9600 bps and reset board via button , get NodeMCU 0.9.5 build 20150318 powered by Lua 5.1.4,lua: cannot open init.lua.
So IDE seems to see the board but have not been able to get past the Error compiling for board NodeMcu 1.0 (ESP-12E Module).I would greatly appreciate any help or criticism here.I know that there a lot of dumb questions and people like to be spoon fed but at this point I have spent weeks trying to resolve it on my own.

Windows 10 64 bit
Lolin NodeMcu V3 ESP-12E

[Arduino: 1.8.9 (Windows Store 1.8.21.0) (Windows 10), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, Disabled, All SSL ciphers (most compatible), 4M (no SPIFFS), v2 Lower Memory, Disabled, None, Only Sketch, 115200"

C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.21.0_x86__mdqgnx93n4wtt\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.21.0_x86__mdqgnx93n4wtt\hardware -hardware C:\Users\HP\Documents\ArduinoData\packages -tools C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.21.0_x86__mdqgnx93n4wtt\tools-builder -tools C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.21.0_x86__mdqgnx93n4wtt\hardware\tools\avr -tools C:\Users\HP\Documents\ArduinoData\packages -built-in-libraries C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.21.0_x86__mdqgnx93n4wtt\libraries -libraries C:\Users\HP\Documents\libraries\libraries -fqbn=esp8266:esp8266:nodemcuv2:xtal=80,vt=flash,exception=disabled,ssl=all,eesz=4M,ip=lm2f,dbg=Disabled,lvl=None____,wipe=none,baud=115200 -vid-pid=1A86_7523 -ide-version=10809 -build-path C:\Users\HP\AppData\Local\Temp\arduino_build_818926 -warnings=all -build-cache C:\Users\HP\AppData\Local\Temp\arduino_cache_154052 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.xtensa-lx106-elf-gcc.path=C:\Users\HP\Documents\ArduinoData\packages\esp8266\tools\xtensa-lx106-elf-gcc\2.5.0-3-20ed2b9 -prefs=runtime.tools.xtensa-lx106-elf-gcc-2.5.0-3-20ed2b9.path=C:\Users\HP\Documents\ArduinoData\packages\esp8266\tools\xtensa-lx106-elf-gcc\2.5.0-3-20ed2b9 -prefs=runtime.tools.mkspiffs.path=C:\Users\HP\Documents\ArduinoData\packages\esp8266\tools\mkspiffs\2.5.0-3-20ed2b9 -prefs=runtime.tools.mkspiffs-2.5.0-3-20ed2b9.path=C:\Users\HP\Documents\ArduinoData\packages\esp8266\tools\mkspiffs\2.5.0-3-20ed2b9 -prefs=runtime.tools.python.path=C:\Users\HP\Documents\ArduinoData\packages\esp8266\tools\python\3.7.2-post1 -prefs=runtime.tools.python-3.7.2-post1.path=C:\Users\HP\Documents\ArduinoData\packages\esp8266\tools\python\3.7.2-post1 -verbose C:\Users\HP\Downloads\ISS\ISS.ino

Board nodemcuv2 (platform esp8266, package esp8266) is unknown

Error compiling for board NodeMCU 1.0 (ESP-12E Module)./code]

The "Board ... is unknown" error occurs when a Boards Manager installation of a different version of a hardware package fails to completely uninstall the previous version. Here's how you solve it:

  • Click the link on the line following File > Preferences > More preferences can be edited directly in the file. This will open the Arduino15 (or similar name depending on OS) folder.
  • Navigate to the packages/esp8266/hardware/esp8266 folder.
  • You will see two folders. One is named by the version of the package you currently have installed, the other is named by the version of the package you previously had installed. Delete the folder with the previous version name. Please be very careful when deleting things on your computer. When in doubt back up!

Thank you very much, been beating myself up with this for weeks now, actually gave up on Arduino. Maybe now I can figure out some of the other issues in my compile. Worked like a charm.

You're welcome. I'm glad to hear it's working now. Enjoy!
Per