Error when starting to intercept voice channel: about drachtio-freeswitch-modules HOT 3 CLOSED

Let me add that sometimes the log includes also following lines:

2019-10-17 10:45:38.942273 [CRIT] google_glue.cpp:202 StreamingDetectIntentRequest finished with err lame client channel (2): 2019-10-17 10:45:38.942273 [DEBUG] google_glue.cpp:210 dialogflow read thread exiting 2019-10-17 10:45:38.942273 [DEBUG] google_glue.cpp:74 GStreamer::write not writing because we are finished, 0x7f624c001e90 2019-10-17 10:45:38.962254 [DEBUG] google_glue.cpp:74 GStreamer::write not writing because we are finished, 0x7f624c001e90
The log entry google_glue.cpp:74 GStreamer::write not writing because we are finished is generated till the call is disconnected.

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I have resolved the issue, seems the FS didn't see the "GOOGLE_APPLICATION_CREDENTIALS" environmental variable when set from the console directly.

Editing the service file (/lib/systemd/system/freeswitch.service) did the trick.
Just add the line:
Environment="GOOGLE_APPLICATION_CREDENTIALS=/tmp/google_credentials.json"
under the [Service] section and after that reload the deamon configuration:
systemctl daemon-reload

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yes, I always set the environment variables in the systemd service file

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