$ gradle t3
My configuration: configuration ':sourceSet1Compile'
FAILURE: Build failed with an exception.
Build file '/Users/user/code/intellij/Proj1/build.gradle' line: 256
* What went wrong:
Execution failed for task ':t3'.
> Could not find method call() for arguments [file collection] on configuration ':sourceSet1Compile'.
On the other hand, for explicitly created configurations, it works normally:
This is applying a plug-in during the “execution” lifecycle. I’m surprised this works, but it’s going to cause problems if you leave it like this. All of this configuration should be done outside a task block.
The error you’re getting takes a little explaining of what Groovy’s doing here in the “normal” case. dependencies is really a DependencyHandler. When you say compile1 files(...), Groovy looks for a method called “compile1” on DependencyHandler. When it doesn’t find one, it calls methodMissing() passing “compile1” and the arguments. We’ve implemented methodMissing() to look for configurations with the missing method name and add dependencies to it (basically doing exactly what you found that works). So you can’t assign a configuration name to a variable and get the same behavior. We’ll look for a configuration with the variable’s name and not the value of the variable.
We’re doing something similar to what you’re trying in one of the samples:
We’re just relying on the convention that new source sets create configurations with the names "sourceSet"Compile/Runtime.