<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>langfuse — FixDevs</title><description>Latest fixes and solutions for langfuse errors on FixDevs.</description><link>https://fixdevs.com/</link><language>en</language><lastBuildDate>Wed, 20 May 2026 00:00:00 GMT</lastBuildDate><atom:link href="https://fixdevs.com/tags/langfuse/rss.xml" rel="self" type="application/rss+xml"/><item><title>Fix: Langfuse Not Working — SDK Init, Tracing Generations, LangChain Wrapper, and Self-Hosted Setup</title><link>https://fixdevs.com/blog/langfuse-not-working/</link><guid isPermaLink="true">https://fixdevs.com/blog/langfuse-not-working/</guid><description>How to fix Langfuse errors — Python/JS SDK init, trace/span/generation hierarchy, LangChain CallbackHandler, OpenAI wrapper, missing usage/cost data, prompt management, and self-hosted Postgres setup.</description><pubDate>Wed, 20 May 2026 00:00:00 GMT</pubDate><category>langfuse</category><category>llm</category><category>observability</category><category>tracing</category><category>langchain</category><category>openai</category><author>FixDevs</author></item></channel></rss>