E122: Imported Twice

This error is emitted when the same name is imported twice on the same import line.

Each import line should only import a name once. Duplicate imports on the same line are redundant and indicate a likely mistake.

Example

scala

import scala.collection.mutable.{ArrayBuffer, ArrayBuffer}

Error

scala

-- [E122] Syntax Error: example.scala:1:46 -------------------------------------
1 |import scala.collection.mutable.{ArrayBuffer, ArrayBuffer}
  |                                              ^^^^^^^^^^^
  |                    ArrayBuffer is imported twice on the same import line.

Solution

scala

// Import each name only once
import scala.collection.mutable.ArrayBuffer

scala

// Or if you need aliases, use different names
import scala.collection.mutable.{ArrayBuffer, ArrayBuffer as MutableBuffer}

<aside class="warning"> This reference page was created with LLM assistance - the description of the error code may not be accurate or cover all possible scenarios. </aside>