Phoenix protobuf error on import: Descriptors cannot be created directly
The real problem is pip backtracking to an old opentelemetry-proto (1.11.1) which only requires protobuf>=3.13, incompatible with protobuf v5. Fix: constrain opentelemetry-exporter-otlp >=1.21.0 (or update all of opentelemetry-proto, opentelemetry-exporter-otlp-proto-grpc, `opentelemetry-exporter-otlp-proto-ht…
Problem outcome: unknown