Fails to upload using serial

building using esp8266, on mac sierra, with oh-my-zsh as shell.
Never had any issue, just did the latest mac update and rebooted and I get this if i try to upload using Serial.

Linking .pioenvs/beta/firmware.elf
Checking program size .pioenvs/beta/firmware.elf
text	   data	    bss	    dec	    hex	filename
367377	  15876	  30672	 413925	  650e5	.pioenvs/beta/firmware.elf
Building .pioenvs/beta/firmware.bin
Looking for upload port...
Use manually specified: /dev/cu.usbserial
Uploading .pioenvs/beta/firmware.bin
sh: -cp: command not found
*** [upload] Error 127
========================================== [ERROR] Took 5.04 seconds ==========================================

================================================== [SUMMARY] ==================================================
Environment default	[SKIP]
Environment beta	[ERROR]
========================================== [ERROR] Took 5.04 seconds ==========================================

Could you try in verbose mode? pio run -v?

Checking program size .pioenvs/beta/firmware.elf
text	   data	    bss	    dec	    hex	filename
371105	  16692	  30752	 418549	  662f5	.pioenvs/beta/firmware.elf
"esptool" -eo /Users/amelvin/.platformio/packages/framework-arduinoespressif8266@1.20300.1/bootloaders/eboot/eboot.elf -bo .pioenvs/beta/firmware.bin -bm qio -bf 80 -bz 4M -bs .text -bp 4096 -ec -eo .pioenvs/beta/firmware.elf -bs .irom0.text -bs .text -bs .data -bs .rodata -bc -ec
MethodWrapper(["upload"], [".pioenvs/beta/firmware.bin"])
Use manually specified: /dev/cu.usbserial
esptool -vv -cd nodemcu -cb 460800; -cp "/dev/cu.usbserial" -cf .pioenvs/beta/firmware.bin
esptool v0.4.9 - (c) 2014 Ch. Klippel <ck@atelier-klippel.de>
setting board to nodemcu
setting baudrate from 115200 to 460800
sh: -cp: command not found
*** [upload] Error 127
================================================== [ERROR] Took 5.91 seconds ==================================================

========================================================== [SUMMARY] ==========================================================
Environment default	[SKIP]
Environment beta	[ERROR]
================================================== [ERROR] Took 5.91 seconds ==================================================
➜  MySONOFF git:(master) ✗ 

Broken platformio.ini or you broke PlatformIO if you modified it. What does mean this ; for upload speed?

ah good spot.

I had an ; after the speed that was not removed when it was passed onto the esptool.

Have you tried PlatformIO 3.2b1? What do you think? Thanks!