MastraM
Mastra•3d ago
Adnan A.

[CompositeExporter] Export error: RangeError

Hi everyone,

I'm running into the following error and could use some help:

[CompositeExporter] Export error: RangeError: Invalid string length
    at JSON.stringify (<anonymous>)
    at Object.serializeRequest (C:\Users\REDACTED\Documents\GitHub\REDACTED\node_modules\@opentelemetry\otlp-transformer\build\src\trace\json\trace.js:12:36)
    at OTLPExportDelegate.export (C:\Users\REDACTED\Documents\GitHub\REDACTED\node_modules\@opentelemetry\otlp-exporter-base\build\src\otlp-export-delegate.js:50:52)
    at OTLPTraceExporter.export (C:\Users\REDACTED\Documents\GitHub\REDACTED\node_modules\@opentelemetry\otlp-exporter-base\build\src\OTLPExporterBase.js:30:30)
    at file:///C:/Users/REDACTED/Documents/GitHub/REDACTED/.mastra/output/instrumentation.mjs:62:28
    at new Promise (<anonymous>)
    at file:///C:/Users/REDACTED/Documents/GitHub/REDACTED/.mastra/output/instrumentation.mjs:60:23
    at Array.map (<anonymous>)
    at CompositeExporter.export (file:///C:/Users/REDACTED/Documents/GitHub/REDACTED/.mastra/output/instrumentation.mjs:59:22)
    at doExport (C:\Users\REDACTED\Documents\GitHub\REDACTED\node_modules\@opentelemetry\sdk-node\node_modules\@opentelemetry\sdk-trace-base\build\src\export\BatchSpanProcessorBase.js:153:61)


Mastra packages:

{
    "@mastra/core": "^0.24.6",
    "@mastra/langfuse": "^0.2.3",
    "@mastra/loggers": "^0.10.19",
    "@mastra/memory": "^0.15.12",
    "@mastra/pg": "^0.17.9",
    "@mastra/rag": "^1.3.6",
    "@mastra/vectorize": "^0.11.17"
}


The confusing part is that I'm not explicitly using CompositeExporter or OpenTelemetry in my code. Does anyone know what might be causing this or how to address it?

Thanks in advance!
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