Can't open ELF file C:\Users\USER

Question

I am trying to build my Platform.io project on Windows 10 x64, and I get this error output:

[10/29/16 23:23:34] Processing esp07 (platform: espressif8266, board: esp07, framework: arduino)

Verbose mode can be enabled via `-v, --verbose` option
Converting Lights.ino
Collected 26 compatible libraries
Looking for dependencies...
Library Dependency Graph

...

Compiling .pioenvs\esp07\src\Lights.ino.o
Building .pioenvs\esp07\firmware.bin
Calculating size .pioenvs\esp07\firmware.elf
error: can't open ELF file C:\Users\USER
*** [.pioenvs\esp07\firmware.bin] Error -1
text       data     bss     dec     hex filename
239736     4912   29568  274216   42f28 .pioenvs\esp07\firmware.elf
 [ERROR] Took 1.31 seconds

Has anyone experienced issues with ELF files on Windows?

P.S. running the IDE under Admin privileges didn't solve the problem.

Answer 1

As correctly stated by the community members (Sami Kuhmonen and Ignacio Vazquez-Abrams) above, the issue was in the presence of spaces in the Windows user name folder. Thank you!

This is a configuration I used to move the folder (platformio.ini):

[platformio]
home_dir = C:\.platformio

Hope this also helps someone else :)