Cannot access org.jetbrains.debugger.DebuggableRunConfiguration (configure dependency in 2026 SDK?)

IntelliJ Platform
1

Hi everyone,

I’m migrating an IntelliJ plugin to the 2026 SDK and running into the following compilation error:

Cannot access 'org.jetbrains.debugger.DebuggableRunConfiguration' 
which is a supertype of 'NsRunConfiguration'. 
Check your module classpath for missing or conflicting dependencies.

public class NsRunConfiguration extends DebuggableProcessRunConfigurationBase

I follow the intellij plugin template with the following configuration:

intellijPlatform {
    intellijIdea(providers.gradleProperty("platformVersion"))

    // Plugin Dependencies. Uses `platformBundledPlugins` property from the gradle.properties file for bundled IntelliJ Platform plugins.
    bundledPlugins(providers.gradleProperty("platformBundledPlugins").map { it.split(',') })

    // Plugin Dependencies. Uses `platformPlugins` property from the gradle.properties file for plugin from JetBrains Marketplace.
    plugins(providers.gradleProperty("platformPlugins").map { it.split(',') })

    // Module Dependencies. Uses `platformBundledModules` property from the gradle.properties file for bundled IntelliJ Platform modules.
    bundledModules(providers.gradleProperty("platformBundledModules").map { it.split(',') })

    testFramework(TestFrameworkType.Platform)
}

and gradle.properties:

platformType = IU
platformVersion = 2026.1
platformDownloadSources = true
platformPlugins = org.jetbrains.plugins.vue:261.22158.208 platformBundledPlugins = AngularJS, HtmlTools, JavaScriptDebugger, JavaScript, com.intellij.css, com.intellij.modules.json platformBundledModules = intellij.javascript.debugger.ui javaVersion = 21

Thanks in advance for your help