- plugin dependency metadata missing
- plugin dependency metadata retrieval problem
- plugin configuration problem
- plugin execution failure due to something that is know to possibly go wrong (like compilation failure)
- plugin execution error due to something that is not expected to go wrong (the compiler executable missing)
- asking to use a plugin for which you do not have a version defined - tools to easily select versions

`Optional[Something]` is actually a shortcut for `Union[Something, None]`, they are equivalent.

This also means that in Python 3.10, you can use `Something | None`:

=== "Python 3.10+"

    ```Python hl_lines="1"
    {!> ../../../docs_src/python_types/tutorial009_py310.py!}
    ```

`Optional[Something]` насправді є скороченням для `Union[Something, None]`, вони еквівалентні.

Це також означає, що в Python 3.10 ви можете використовувати `Something | None`:

=== "Python 3.8 і вище"

    ```Python hl_lines="1  4"
    {!> ../../../docs_src/python_types/tutorial009.py!}
    ```

    def "changes to inputs that are excluded by default leave task up-to-date"() {
        def inputDir = file("inputDir").createDir()
        inputDir.file('inputFile.txt').text = "input file"
        inputDir.createDir('something')

        buildFile << """
            task myTask {
                inputs.dir('inputDir')
                outputs.file('build/output.txt')
                def outputFile = file('build/output.txt')

func TestStartSpec(t *testing.T) {
	podStatus := &kubecontainer.PodStatus{
		ContainerStatuses: []*kubecontainer.Status{
			{
				ID: kubecontainer.ContainerID{
					Type: "docker",
					ID:   "docker-something-something",
				},
				Name: "target",
			},
		},
	}

	for _, tc := range []struct {
		name string
		spec *startSpec
		want *kubecontainer.ContainerID
	}{
		{
			"Regular Container",

    def "substitutes transitive dependency based on result of resolution rules"() {
        given:
        mavenRepo.module("org.external", "external-dep", '1.0')
            .dependsOn("org.test", "something", "1.0")
            .dependsOn("org.other", "something-else", "1.0")
            .publish()

        buildA.buildFile << """
            dependencies {
                implementation "org.external:external-dep:1.0"
            }

            task test(type: GroovyTask)
            assert test.prop == '[default]'
            test {
                description 'does something'
                prop 'value'
            }
            assert test.description == 'does something'
            assert test.prop == 'value'
            test.doStuff {
                prop = 'new value'
            }
            assert test.prop == 'new value'

// called in case of panic.  HandleCrash actually crashes, after calling the
// handlers and logging the panic message.
//
// E.g., you can provide one or more additional handlers for something like shutting down go routines gracefully.
//
// TODO(pohly): logcheck:context // HandleCrashWithContext should be used instead of HandleCrash in code which supports contextual logging.

[[invalid_use_of_cacheable_annotation]]
== Invalid use of cacheable annotation

This error indicates that you have annotated a type with `@CacheableTransform` on something that is not an artifact transform, or `@CacheableTask` on something which is not a `Task`.

The solution is to remove the annotation.

For tasks, the annotation to use is `@CacheableTask`.

`Optional[Something]` là một cách viết ngắn gọn của `Union[Something, None]`, chúng là tương đương nhau.

Điều này cũng có nghĩa là trong Python 3.10, bạn có thể sử dụng `Something | None`:

=== "Python 3.10+"

    ```Python hl_lines="1"
    {!> ../../../docs_src/python_types/tutorial009_py310.py!}
    ```