Add error messages
authorLuke Lau <luke_lau@icloud.com>
Fri, 12 Oct 2018 14:10:22 +0000 (15:10 +0100)
committerLuke Lau <luke_lau@icloud.com>
Fri, 12 Oct 2018 14:10:22 +0000 (15:10 +0100)
commitc8e8274981a5050ff1247f2a8244d394ba92ecc2
treed1133b245c53e0f0d48db79a4680f0c4369251e3
parent203a4ba8a08faf4c6640c7d60e729459de56d865
Add error messages
Main.hs