Using idea 2019.1.14 IC to build Idea plugin, report class file has wrong version 55.0, should be 52.0

Hi

Trying to build our plugin using IC on JDK 1.8 results in the following failure:

bad class file: /Users/yinglin/.gradle/caches/modules-2/files-2.1/com.jetbrains.intellij.idea/ideaIC/LATEST-EAP-SNAPSHOT/30340d8b3592bf42c2fc4ffca6466f78a6353737/ideaIC-LATEST-EAP-SNAPSHOT/lib/platform-api.jar(com/intellij/openapi/actionSystem/AnAction.class)
class file has wrong version 55.0, should be 52.0
Please remove or make sure it appears in the correct subdirectory of the classpath.

And I had to build on java 8, how can I deal with it?

java -version
java version "1.8.0_291"
Java(TM) SE Runtime Environment (build 1.8.0_291-b10)
Java HotSpot(TM) 64-Bit Server VM (build 25.291-b10, mixed mode)

build.gradle:

plugins {
    id 'java'
    id 'org.jetbrains.intellij' version '1.0'
    id 'org.jetbrains.kotlin.jvm' version '1.4.32'
}

apply plugin: 'kotlin'
apply plugin: 'org.jetbrains.intellij'

group 'com.lake.json2dart'
version '1.0.3'

sourceCompatibility = 1.8

repositories {
    mavenCentral()
}

ext.kotlin_version = '1.4.32'
dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation 'com.google.code.gson:gson:2.8.7'
    implementation 'com.fifesoft:rsyntaxtextarea:3.1.3'
    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.7.0'
    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.7.0'

    implementation 'com.kenai.nbpwr:org-jdesktop-swingx:1.6-201002261215'
}

// See https://github.com/JetBrains/gradle-intellij-plugin/
intellij {
    version '2019.1.4'
}
compileKotlin {
    kotlinOptions.jvmTarget = "1.8"
}
compileTestKotlin {
    kotlinOptions.jvmTarget = "1.8"
}
patchPluginXml {
    changeNotes = """xxxxxxxx
    """
}

test {
    useJUnitPlatform()
}