This is my folder structure and I am trying to load the "grammar.txt" file from resources folder but I get not found error.

val source = Source.fromResource("grammar.txt")

Folder structure:

➜  cfg-tools tree -L 4
.
├── build.sbt
├── src
│   ├── main
│   │   └── scala
│   │       ├── Builer.scala
│   │       ├── Driver.scala
│   │       ├── tokens.scala
│   │       └── Tools.scala
│   ├── resources
│   │   └── grammar.txt

build.sbt

name := "cfg-tools"

version := "0.1"

scalaVersion := "3.0.2"

Compile / unmanagedResourceDirectories  = sourceDirectory.value / "resources"

CodePudding user response：

You don't need the custom SBT configuration: just use the standard place for resources which is src/main/resources (note that it's in main subfolder compared to your current structure).