Could you screenshot the error? I wonder whether it is coming from Android or from nRF connect.
Could you maybe try re-downloading it? It's possible that the file got corrupted (maybe only partially downloaded?) when you tried to get it.
@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.
Could you screenshot the error? I wonder whether it is coming from Android or from nRF connect.
Could you maybe try re-downloading it? It's possible that the file got corrupted (maybe only partially downloaded?) when you tried to get it.