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what is the correct way to always run another task after a build?
I've tried
```task("build").finalizedBy("jsPublicPackageJson")```
but it complains `Cannot add task 'build' as a task with that name already exists.`

you want to get the task build, `tasks.get("build")` or `tasks["build"]`

```Task with name 'build' not found in root project '....'.```
This is for my root build.gradle.kts file, does it not have a build task?

adding it under `allprojects { }` is giving he same message

gradle.buildFinished works, so it must have a build task

I'm not sure what your logic is for that last line -- a build != running the `build` task

ok, does the root build.gradle.kts make use of a different task when you do `gradle build` ?

`build` is just a convenient way to run `assemble` and then `check`, it is added by the `lifecycle` plugin, so if you don't have any plugins applied to the root, it doesn't exist

`gradle build` refers to _all_ tasks named `build`, not a task in the root project named `build`

`gradle :build` is specifically the `build` task in the root project

i'm coming from the maven world where the lifecycles are fixed, it's taking a bit of getting used to

got it running by moving this into the sub project's build.gradle.kts

dependsOn seems to create a circular dependnecy, so used mustRunAfter

```	tasks.get("build").mustRunAfter("jsPublicPackageJson")```
thanks for the help, it's much appreciated!

I would be surprised if dependsOn is circular?

it means that `jsPublicPackageJson` dependsOn `build` for some reason, which should really _not_ be the case

correction, finalizedBy was causing the circular dependency, dependsOn works as you said

you can also write `subprojects{}` in the root instead of `allprojects{}` if that suits better

i should try that, allprojects includes the root project which i usually don't want when i'm looping through subprojects

Do not use tasks.get(“build”), it forces task to be configured eagerly, use configuration block:
```tasks.named("build") {
   mustRunAfter("jsPublicPackageJson")
}```