Platformio-atom-ide: C/C++ project index rebuild failed

[palaciodepego]

Error: [01/27/18 08:37:33] Processing esp32dev (platform: espressif32; board: esp32dev; framework: arduino)

Verbose mode can be enabled via -v, --verbose option
System: ESP32 240MHz RAM/288K Flash/1.25M
UnicodeEncodeError: 'ascii' codec can't encode character u'\xfc' in position 5278: ordinal not in range(128):
File "C:\Users\palb.platformio\penv\lib\site-packages\platformio\builder\main.py", line 158:
env.SConscript("$BUILD_SCRIPT")
File "C:\Users\palb.platformio\packages\tool-scons\script..\engine\SCons\Script\SConscript.py", line 551:
return _SConscript(self.fs, files, *subst_kw)
File "C:\Users\palb.platformio\packages\tool-scons\script..\engine\SCons\Script\SConscript.py", line 256:
call_stack[-1].globals)
File "C:\Users\palb.platformio\platforms\espressif32\builder\main.py", line 163:
target_elf = env.BuildProgram()
File "C:\Users\palb.platformio\packages\tool-scons\script..\engine\SCons\Environment.py", line 224:
return self.method(nargs, *kwargs)
File "C:\Users\palb.platformio\penv\lib\site-packages\platformio\builder\tools\platformio.py", line 63:
env.BuildFrameworks(env.get("PIOFRAMEWORK"))
File "C:\Users\palb.platformio\packages\tool-scons\script..\engine\SCons\Environment.py", line 224:
return self.method(nargs, *kwargs)
File "C:\Users\palb.platformio\penv\lib\site-packages\platformio\builder\tools\platformio.py", line 261:
env.ConvertInoToCpp()
File "C:\Users\palb.platformio\packages\tool-scons\script..\engine\SCons\Environment.py", line 224:
return self.method(nargs, *kwargs)
File "C:\Users\palb.platformio\penv\lib\site-packages\platformio\builder\tools\piomisc.py", line 189:
out_file = c.convert(ino_nodes)
File "C:\Users\palb.platformio\penv\lib\site-packages\platformio\builder\tools\piomisc.py", line 54:
return self.process(contents)
File "C:\Users\palb.platformio\penv\lib\site-packages\platformio\builder\tools\piomisc.py", line 77:
assert self._gcc_preprocess(contents, out_file)
File "C:\Users\palb.platformio\penv\lib\site-packages\platformio\builder\tools\piomisc.py", line 88:
fp.write(contents)
[ERROR] Took 2.84 seconds

[ivankravets]

Fixed in https://github.com/platformio/platformio-core/commit/332472e84b786d715fcca8fedf78d6fef2c21ff3

Please open PIO IDE Terminal and type

pio upgrade --dev

Should work now.