how to use sparks implicit conversion (e.g. $) in IntelliJ debugger evaluate expression

Question

When debugging Spark/Scala code with IntelliJ, using e.g. df.select($"mycol") does not work in the evaluate expression window, while df.select(col("mycol")) works fine (but needs code change):

It says :

Error during generated code invocation: com.intellij.debugger.engine.evaluation.EvaluateException: Error evaluating method : 'invoke': Method threw 'java.lang.NoSuchFieldError' exception.: Error evaluating method : 'invoke': Method threw 'java.lang.NoSuchFieldError' exception.

Strangely, it seems to work sometimes, especially if the $ is already part of an existing expression in the code which I mark to evaluate. If I write arbitrary expressions (code-fragments), it fails consistently

EDIT: even repeating import spark.implicts._ in the code-fragment window does not help

Answer 1

Try this workaround:

import spark.implicits._
$""
df.select($"diff").show()