Sie_Sayoka, I'm a fan of yours and a StarCraft player for 20 years. I especially love the various units you create; however, my skills are limited, and after following your tutorials, I'm encountering many error messages. I don't know how to solve them and really hope to get your guidance.

The current problems are:
1. Tanks and missiles display error messages when moving;
2. Missiles are not attacking (they can attack ground and air units, and they self-destruct after hitting a target).
Failed to get ImageSize ( http://scontent-hkg4-1.xx.fbcdn.net/v/t39.30808-6/657402778_122240902772262501_5631311502169984806_n.jpg?_nc_cat=100&ccb=1-7&_nc_sid=13d280&_nc_ohc=lliZdgujsuoQ7kNvwG3u7hA&_nc_oc=AdrvE8eJEFNRdj1GtC34YNQH1SsM5AI84n8iUBLrSBdf2pHhf1q6lb3RdH642dmpnDI&_nc_zt=23&_nc_ht=scontent-hkg4-1.xx&_nc_gid=Oh48I9byxf8O9Q2SQ7_3qA&_nc_ss=7a32e&oh=00_AfwquHsr1EXlRHd9cTXC73nUsCLpq5zy1T7z_Qo2Lv1LVA&oe=69C85A3A )
Failed to get ImageSize ( http://scontent-hkg4-1.xx.fbcdn.net/v/t39.30808-6/658365222_122240902814262501_5141469939645964052_n.jpg?_nc_cat=108&ccb=1-7&_nc_sid=13d280&_nc_ohc=54NP9pZq2LIQ7kNvwEcVkQP&_nc_oc=AdrHFdyPBG-6XDU7GDLz7yS_9tF9yWzFELC7os0whMeZ8SD6qSEunny6WjjD2h8xuxs&_nc_zt=23&_nc_ht=scontent-hkg4-1.xx&_nc_gid=8GGUZ7fgeY3wgIo4nbNfdA&_nc_ss=7a32e&oh=00_AfxUAzaH4ufWn3M-1p4jZlHROZ4OeamEGugQV9LUfGZCqA&oe=69C87856 )