Seeing placeholder instead of UI

[jiangxinlingdu]

I want compile jaeger source code , jaeger-query portion error：

This is a placeholder for Jaeger UI home page. If you are seeing this, you are running a binary that was not compiled with the UI assets.

what should i do ？？？

[objectiser]

Instructions on building Jaeger can be found here: https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING.md

See https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING.md#running-local-build-with-the-ui for more information on how the UI is compiled into the binary.

[yurishkuro]

I think we can improve the placeholder message.