Failed to convert text to speech - error -1

[lesliebinbin]

Regarding speech-to-text, I am using WIO Terminal, the builtin microphone, things I have done:

1. comment out two lines:

        // _token_client.setCACert(TOKEN_CERTIFICATE);
        // _speech_client.setCACert(SPEECH_CERTIFICATE);

because setting the CACert I can not even get back the token

2. the error code return is -1, any idea why? Is it due the the rpcWifi library itself?

[Raunak Singh]

@lesliebinbin Thanks. Commenting this out fixed the issue.