### Example WartRemover Compilation Error

Source: https://wartremover.github.io/wartremover

This example shows a typical compilation error message from WartRemover when the 'Null' wart is enabled and 'null' is used in the code. Ensure 'Null' wart is configured if you intend to disallow null.

```text
[error] /tmp/src/main/scala/test/Foo.scala:2: [wartremover:Null] null is disabled
[error] 	val foo = null
[error] 	          ^
[error] one error found
[error] (compile:compileIncremental) Compilation failed

```

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