intellij-elixir gradle error

runIdea error

Caused by: : /projekty/intellij-elixir/intellij-elixir-gradle/src/main/java/org/elixir_lang/configuration/ElixirCompilerOptionsConfigurable.form: The form is bound to the class org.elixir_lang.configuration.ElixirCompilerOptionsConfigurable.
Another form /projekty/intellij-elixir/intellij-elixir-gradle/src/main/java/org/elixir_lang/configuration/ElixirCompilerOptionsConfigurable.form is also bound to this class.
	at com.intellij.ant.Javac2.fireError(Javac2.java:510)
	at com.intellij.ant.Javac2.instrumentForms(Javac2.java:297)
	at com.intellij.ant.Javac2.compile(Javac2.java:236)
	at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:936)
	at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
	at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
	at org.gradle.api.internal.project.ant.BasicAntBuilder.nodeCompleted(BasicAntBuilder.java:78)
	at org.gradle.api.internal.project.ant.BasicAntBuilder.doInvokeMethod(BasicAntBuilder.java:93)
	at org.jetbrains.intellij.IntelliJInstrumentCodeAction.instrumentCode(IntelliJInstrumentCodeAction.groovy:75)
	at org.jetbrains.intellij.IntelliJInstrumentCodeAction$_execute_closure2.doCall(IntelliJInstrumentCodeAction.groovy:44)
	at org.jetbrains.intellij.IntelliJInstrumentCodeAction.execute(IntelliJInstrumentCodeAction.groovy:35)
	at org.jetbrains.intellij.IntelliJInstrumentCodeAction.execute(IntelliJInstrumentCodeAction.groovy)
	at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:585)
	at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:568)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80)
	at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61)
	... 68 more