[7.0] Cleandev runs are broken

[PaintNinja]

Attempting to run with a clean MC dependency such as minecraft.dependency('net.minecraft:client:1.21.11') or implementation minecraft.dependency('net.minecraft:joined:1.21.11') triggers an exception stating that the runs.json does not exist:

A problem was found with the configuration of task ':runClient' (type 'SlimeLauncherExec').
  - Type 'net.minecraftforge.gradle.internal.SlimeLauncherExec' property 'runsJson' specifies file 'C:\Users\oscar\Downloads\forge-1.21.11-61.1.1-mdk\build\minecraftforge\forgegradle\slimeLauncherMetadata\runs.json' which doesn't exist.
    
    Reason: An input file was expected to be present but it doesn't exist.
    
    Possible solutions:
      1. Make sure the file exists before the task is called.
      2. Make sure that the task which produces the file is declared as an input.

To reproduce:

1. Grab a minimal FG7 MDK
2. Delete the example Config.java and turn ExampleMod.java into an empty class so that no Forge code is referenced
3. Change the Minecraft dependency to one of the two mentioned near the top of this issue report.
4. Attempt to run the runClient or runServer tasks

Last known working version: 7.0.0-beta.19

Build scan: https://scans.gradle.com/s/3p64muvlft6tg

[LexManos]

Can you try re-generating the run configs?
As the file not existing, makes sense. Vanilla minecraft doesn't have a userdev config and thus doesn't have runs.json.
I'd expect you need to specify the run arguments yourself.
Are you sure you followed the same procedure for the old beta?
This seems like a prime candidate for an example mdk.

[PaintNinja]

There's a pinned issue on this repo saying that run configs can only be generated for Eclipse as other IDEs support attaching a debugger to Gradle tasks out of the box. The same error occurs when running the genEclipseRuns task.

The procedure I did is the same as the old beta, the only differences are DSL breaking changes like minecraft.dep(...) -> minecraft.dependency(...) and maven minecraft.maven -> minecraft.mavenizer it. In the old beta I did need to manually specify some args in the runs but the error being reported is before it gets to that stage - adding the same run args in the stable FG7 build gives the same error.

[Jonathing]

triggers an exception stating that the runs.json does not exist

Oops.

[LexManos]

There's a pinned issue on this repo saying that run configs can only be generated for Eclipse as other IDEs support attaching a debugger to Gradle tasks out of the box. The same error occurs when running the genEclipseRuns task.

Ya my bad just thought it was stale run configs.

In the old beta I did need to manually specify some args in the runs but the error being reported is before it gets to that stage

Ah, makes more sense.