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IndexBuilder does not generate meta-data.json #185

@xinyishen07

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@xinyishen07

With the latest QLever (Docker image built on Sep 1 2025), IndexBuilderMain finishes with “Index build completed”, but no meta-data.json is written.

As a result, the server fails with:

ERROR: The required key "num-predicates" was not found in the meta-data.json.

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