求助一进游戏就闪退

内存, 控制台, Software, Java

控制台输出如下：
[2013-1-18 12:57:46]启动参数=-Xmx1024M -jar "E:\Minecraft\CirnoCraft_version1.4.7\launcher\LauncherWarp.jar" "LeTian_Han" "ebe9c0bc8d7d5453232" "CirnoCraftLauncher - CirnoCraft_1_4_7.jar" "854x480" "Mojang" "CirnoCraft_1_4_7.jar" "E:\Minecraft\CirnoCraft_version1.4.7\.minecraft\
[2013-1-18 12:57:46]分配了内存:1024M空闲内存：1143M Build：130101201404
[2013-1-18 12:57:46]
[2013-1-18 12:57:46]Registry key 'Software\JavaSoft\Java Runtime Environment\CurrentVersion'
[2013-1-18 12:57:46]has value '1.7', but '1.5' is required.
[2013-1-18 12:57:46]Error: could not find java.dll
[2013-1-18 12:57:46]Error: could not find Java 2 Runtime Environment.
[2013-1-18 12:57:46]
[2013-1-18 12:57:46]启动参数=-Xmx1024M -jar "E:\Minecraft\CirnoCraft_version1.4.7\launcher\LauncherWarp.jar" "LeTian_Han" "ebe9c0bc8d7d5453232" "CirnoCraftLauncher - CirnoCraft_1_4_7.jar" "854x480" "Mojang" "CirnoCraft_1_4_7.jar" "E:\Minecraft\CirnoCraft_version1.4.7\.minecraft\
[2013-1-18 12:57:46]分配了内存:1024M空闲内存：1143M Build：130101201404
[2013-1-18 12:57:46]游戏已终止.若游戏是非正常结束(例如报错、崩溃),请将本框内的信息全选发送给⑨.

求破QAQ