IDEA导入gradle项目报错，has been compiled by a more recent version of the Java Runtime (class file version

has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0

在导入gradle项目时，需要将jdk调整到对应的版本，参考下面的对应关系：

50		==>		jdk1.6
51		==>		jdk1.7
52		==>		jdk1.8
53		==>		jdk9
54		==>		jdk10
55		==>		jdk11
56		==>		jdk12
57		==>		jdk13
58		==>		jdk14
59		==>		jdk15

在调整完之后还需要让jdk与gradle的版本匹配，如果jdk过高则需要升级对应的gradle版本