Branch: binary
Build version: 4.2.0-2092659
The Build tool won’t correctly sign the Android apk for distribution when there is a space in the keyalias but still packages “successfully”. The result is “Failure [INSTALL_PARSE_FAILED_NO_CERTIFICATES]” when trying to install the apk (when running the .bat). My guess is some missing quotation marks, right here. 
I do believe you are right. Have you tried the quotes to make sure the commandline tool likes them there?
Sorry, I have not, as I do not have the source downloaded (yet). I just took a guess why, then searched on github, saw that it wasn’t quoted. Finally, I created another key without a space in the alias and it resolved the issue for me. I know other android tools fully allow a space in the alias, so I’m pretty sure it wouldn’t mind them there.