• key is invalid 是你用的jar不对。

下载补丁，不管你之前用哪个补丁，现在用这个

下载补丁：JetbrainsCrack-4.2-release-enc.jar pan.baidu.com/s/1xeLeDUpZ… 提取码：uenr

打开idea的安装目录中的bin文件夹（如本人的是：D:\IntelliJ IDEA 2018.3.3\bin），把下载的JetbrainsCrack-4.2-release-enc.jar复制到这里。 然后找到idea.exe.vmoptions和idea64.exe.vmoptions两个文件， 用记事本打开它们， 末尾都加上：-javaagent:你的idea的安装目录\bin\JetbrainsCrack-4.2-release-enc.jar

修改Activation Code

• 重启idea，进入Register(在Help中有，或者进入项目之前选择工程的界面也有)

• 选择Activation Code，粘贴如下代码，记得修改下面的用户名部分和邮箱部分：

ThisCrackLicenseId-{
"licenseId":"ThisCrackLicenseId",
"licenseeName":"你想要的用户名",
"assigneeName":"",
"assigneeEmail":"随便填一个邮箱(我填的:idea@163.com)",
"licenseRestriction":"For This Crack, Only Test! Please support genuine!!!",
"checkConcurrentUse":false,
"products":[
{"code":"II","paidUpTo":"2099-12-31"},
{"code":"DM","paidUpTo":"2099-12-31"},
{"code":"AC","paidUpTo":"2099-12-31"},
{"code":"RS0","paidUpTo":"2099-12-31"},
{"code":"WS","paidUpTo":"2099-12-31"},
{"code":"DPN","paidUpTo":"2099-12-31"},
{"code":"RC","paidUpTo":"2099-12-31"},
{"code":"PS","paidUpTo":"2099-12-31"},
{"code":"DC","paidUpTo":"2099-12-31"},
{"code":"RM","paidUpTo":"2099-12-31"},
{"code":"CL","paidUpTo":"2099-12-31"},
{"code":"PC","paidUpTo":"2099-12-31"}
],
"hash":"2911276/0",
"gracePeriodDays":7,
"autoProlongated":false}