Task 'run' not found in root project

I am having the same issue, with my first project (following a Spark tutorial). Here is the output of “gradle tasks”
`:tasks


All tasks runnable from root project

Build tasks

assemble - Assembles the outputs of this project.
build - Assembles and tests this project.
buildDependents - Assembles and tests this project and all projects that depend
on it.
buildNeeded - Assembles and tests this project and all projects it depends on.
classes - Assembles main classes.
clean - Deletes the build directory.
jar - Assembles a jar archive containing the main classes.
testClasses - Assembles test classes.

Build Setup tasks

init - Initializes a new Gradle build. [incubating]
wrapper - Generates Gradle wrapper files. [incubating]

Documentation tasks

javadoc - Generates Javadoc API documentation for the main source code.

Help tasks

buildEnvironment - Displays all buildscript dependencies declared in root projec
t ‘redemption-api’.
components - Displays the components produced by root project ‘redemption-api’.
[incubating]
dependencies - Displays all dependencies declared in root project ‘redemption-ap
i’.
dependencyInsight - Displays the insight into a specific dependency in root proj
ect ‘redemption-api’.
help - Displays a help message.
model - Displays the configuration model of root project ‘redemption-api’. [incu
bating]
projects - Displays the sub-projects of root project ‘redemption-api’.
properties - Displays the properties of root project ‘redemption-api’.
tasks - Displays the tasks runnable from root project ‘redemption-api’.

IDE tasks

cleanEclipse - Cleans all Eclipse files.
eclipse - Generates all Eclipse files.

Upload tasks

uploadArchives - Uploads all artifacts belonging to configuration ‘:archives’

Verification tasks

check - Runs all checks.
test - Runs the unit tests.

Rules

Pattern: clean: Cleans the output files of a task.
Pattern: build: Assembles the artifacts of a configuration.
Pattern: upload: Assembles and uploads the artifacts belongin
g to a configuration.

To see all tasks and more detail, run gradle tasks --all

To see more detail about a task, run gradle help --task

BUILD SUCCESSFUL

Total time: 6.517 secs`