Looks like you're maybe using the wrong compiler version. It's 6.2?
Looking at https://launchpad.net/gcc-arm-embedded (the recommended one) the lastest stable version there is 5.4. Maybe you could try using that?
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Looks like you're maybe using the wrong compiler version. It's 6.2?
Looking at https://launchpad.net/gcc-arm-embedded (the recommended one) the lastest stable version there is 5.4. Maybe you could try using that?