## TL;DR

Schema development is easy using the https://docs.vespa.ai/en/schemas.html#intellij-plugin - as Vespa is built for safe deployments, a "deploy" must be done to activate schema changes, this is a simple and fail-safe workflow (and incompatible changes will emit a warning a stop the deployment) Context: Stack Overflow #75832470 (accepted answer, 6 votes): I want to be able to quickly make index, modify schema, feed test data, delete data, copy/clone index, run queries on the index from the web interface - just like I can do with Elasticsearch.

## Steps

1. https://github.com/vespa-engine/vespa/tree/master/client/js/app has a GUI for the query API. cloud.vespa.ai/en/cloning-applications-and-data covers cloning. Schema development is easy using the https://docs.vespa.ai/en/schemas.html#intellij-plugin - as Vespa is built for safe deployments, a "deploy" must be done to activate schema changes, this is a simple and fail-safe workflow (and incompatible changes will emit a warning a stop the deployment)

## When to use

You are seeing this: https://github.com/vespa-engine/vespa/tree/master/client/js/app has a GUI for the query API. cloud.vespa.ai/en/cloning-applications-and-data covers cloning. Use this skill when you run into "Is there a Kibana equivalent for Vespa Search?".

## When not to use

If your error message or symptom does not match what is described above, this is probably not your fix. Search for your exact error text instead of forcing this one to fit.

## Versions

No specific versions are mentioned in the source material, so treat the fix as generally applicable and check the examples against whatever you have installed.

## Why this happens

The original report does not dig into a root cause. It documents the symptom and the fix that resolved it.

## Sources

- https://github.com/vespa-engine/vespa/tree/master/client/js/app

- https://docs.vespa.ai/en/schemas.html#intellij-plugin