main.js file is missing about spring-flights

[bclozel]

It's generated by the webpack build. You must run the Gradle build to get it.

[yhjhoo]

Right,

it turns out the gradle has some issue to run npm command

> Task :flight-client:nodeSetup FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':flight-client:nodeSetup'.
> Could not find method layout() for arguments [pattern, com.moowork.gradle.node.task.SetupTask$_addRepository_closure5$_closure7@55113429] on object of type org.gradle.api.internal.artifacts.repositories.DefaultIvyArtifactRepository.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

But it's okay, I figured it out by running 'npm run build' and copy the static file to static folder in flight-tracker project