Error Creating new Projet

Hello
I have just install Atom. But when I try to create a new projet I have thos error :

Error: [07/31/16 15:21:43] Processing pro8MHzatmega328 (platform: atmelavr, board: pro8MHzatmega328, framework: arduino)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xe9 in position 4: invalid continuation byte : File "C:\users\regis\.atom\packages\platformio-ide\penv\lib\site-packages\platformio\builder\main.py", line 172:
print json.dumps(env.DumpIDEData())
File "C:\Program Files (x86)\Python 2.7\Lib\json\__init__.py", line 244:return _default_encoder.encode(obj)
File "C:\Program Files (x86)\Python 2.7\Lib\json\encoder.py", line 207:chunks = self.iterencode(o, _one_shot=True)
File "C:\Program Files (x86)\Python 2.7\Lib\json\encoder.py", line 270:return _iterencode(o, 0)

I have no idea how to solve my problem.

I run under windows 10.

Thanks for help

It looks like you have library that contains non-utf8 chars in the name. Do you see the same error when open one of Menu: PlatformIO > Examples?

No
I have
PlatformIO: C/C++ Project Index (for Autocomplete, Linter) has been successfully rebuilt.

I just want to test the Atom with a simple program that I know is working.

this is my code :

#include <Wire.h>

void setup() {
  Wire.begin(7);        // join i2c bus (address optional for master)
  Serial.begin(9600);  // start serial for output
  Wire.onReceive(ReceiveRq);
}

void loop() {
   
  Wire.beginTransmission(8);
  Wire.write("COUCOU de 8 ");
  Wire.endTransmission();
  delay(2000);

  Wire.requestFrom(8, 6);    // request 6 bytes from slave device #8

  while (Wire.available()) { // slave may send less than requested
    char c = Wire.read(); // receive a byte as character
    Serial.print(c);         // print the character
  }

}
void ReceiveRq(int numBytes)
{
Serial.println("reception");
  while (Wire.available()) 
  { // slave may send less than requested
    char c = Wire.read(); // receive a byte as character
    Serial.print(c);         // print the character
  }
}

Could you update to the latest version?