Solution
In the error message, we can see the PATH :
PATH=[C:\Windows\system32\ C:\build\17.0\arm\sysroots\i686-nilrtsdk-mingw32\usr\bin\arm-nilrt-linux-gnueabi;C:/Program Files (x86)/Java/jre1.8.0_181/bin/client;C:/Program Files (x86)/Java/jre1.8.0_181/bin;C:/Program Files (x86)/Java/jre1.8.0_181/lib/i386;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine To fix the error you have to add a semicolon between C:\Windows\system32\ and C:\build\17.0\arm\sysroots\i686-nilrtsdk-mingw32\usr\bin\arm-nilrt-linux-gnueabi, please see below (Highlighted in red):
PATH=[C:\Windows\system32\;C:\build\17.0\arm\sysroots\i686-nilrtsdk-mingw32\usr\bin\arm-nilrt-linux-gnueabi;C:/Program Files (x86)/Java/jre1.8.0_181/bin/client;C:/Program Files (x86)/Java/jre1.8.0_181/bin;C:/Program Files (x86)/Java/jre1.8.0_181/lib/i386;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\iCLS\;C:\Program Files\Intel\Intel(R) Management Engine You can modify it manually :
- project>Properties
- In the windows select C/C++Build>Environnement
- Edit PATH and add the semicolon

- Compile your project again and the error should have disappeared