Twilio - Unable to Invoke Service SendSMSMessage on twilio-connector_TH : null

[Abhishek_Tirkey]

I was following this article - 
https://community.ptc.com/t5/IoT-Tips/Send-Messages-with-Twilio/ta-p/834729

I have checked with the configuration and it is correct 
During executing Twilio thing to send message I got this error -

[VladimirN]

Same issue - "Twilio SendSMS service issues": https://community.ptc.com/t5/ThingWorx-Developers/Twilio-SendSMS-service-issues/td-p/668767 

[bchaudhary]

Hello @Abhishek_Tirkey 

You can refer the following guide to assist you further

https://support.ptc.com/help/thingworx/platform/r9.6/en/index.html#page/ThingWorx/Help/Extensibility/Twilio.html

If you still face the issue i would suggest if you can change the logging level (Browse>>subsystem>>logging subsystem>>check enable stack trace option and save )and reproduce the issue and share error and script logs with us.

Note : please revert the logging once issue is reproduced

Thanks

[Abhishek_Tirkey]

Log Message

ErrorCode(3b19949e-a7bc-45ae-92a4-18bc6a813ee1), Cause(null), Reason(Access was attempted on a null reference variable.), Possible Resolutions(Remove the reference to the null variable within your extension code.)

[bchaudhary]

@Abhishek_Tirkey 

Can you please share error from error log file from thingworx storage folder if possible?

Thanks

[Abhishek_Tirkey]

I have attached a ErrorLog file for the reference.

[vnamboodheri]

Hello @Abhishek_Tirkey,

Thank you for using PTC Community!
You have a response on your topic, if you are in position to reply, please open your topic & click on "Reply" and add your comments/attach the log file.

If you already resolved your issue, please document the solution in this topic by replying to it and marking it as the accepted solution. This will surely help other users who may have a similar question.

Regards,

Vivek N
Community Moderation Team.

[PEHOWE]

Hello @Abhishek_Tirkey , 
What version of the Extension are you using?

The Extension is now being maintained by IQNOX.
The error messages in the log which you provide indicate that the application keys are invalid.

You included a link to the steps which you followed. Were there any steps which caused error messages?
Where you able to get an AUTH TOKEN from Twilio? The values shown in the instructions are not valid values.
Did you get the congratulations message and a new Phone number?

What happened during the steps for the test message?

Regards,
Pehowe

[Abhishek_Tirkey]

My ThingWorx version is - 9.3.10
Twilio Extension version is - 4.0.0

None of the steps gave error in the process.
I got AUTH TOKEN, ACCOUNT SID and a TWILIO PHONE NUMBER from Twilio and same I have entered in the Thing Configuration

While trying to send test message I was not able to send it. Shows an error output 

[PEHOWE]

Hello @Abhishek_Tirkey ,
I have loaded the Twilio Extension into an Thingworx environment. When I go to configuration, I see the same box's you show in your screen capture. 

Just a general question when you entered the phone number you included the "+". I would not expect that to be required.

Have you checked the ThingWorx logs? (ApplicationLog.log, ScriptLog.log. ScriptErrorLog.log, and Errorlog.log)
Some of these can be examined through Composer but not all. 
I find reviewing these files easer with an editor and accessing them from the server.

What ThingWorx account are you trying to test SendSMSMessage? If you not using an Administrator account you should check the permissions on the services.

Thanks
Pehowe

[Abhishek_Tirkey]

I have tried using "+" as well as without "+".

I am using a Administrator account. I have checked with the logs and I have shared the log on the previous messages.But again i am getting this output -  Unable to Invoke Service SendSMSMessage on twilio_TH : null

[PEHOWE]

Hello @VladimirN , When you edit your THING, which uses The Base Thing Template "Twilio", What do you find when you look at the permissions tab?

There are 3 different groups of Permissions (Visibility, Run TIme, and Design Time)

If you are using an account which is in the Administrator group, you are configured to have full access. If you are in another group then you need permissions.

Let me know what you find

Pehowe
 

[Abhishek_Tirkey]

Hi, @PEHOWE , I am using with Administrator group.
Anyhow I am getting the same error - Unable to Invoke Service SendSMSMessage on twilio_TH : null

[PEHOWE]

Hello @Abhishek_Tirkey , Because this Extension is no longer maintained by PTC have you reviewed the documentation at IQNOX

Have you been able to resolve the issue?
Regards,

Pehowe

[Abhishek_Tirkey]

Hi @PEHOWE yeah, I have reviewed the IQNOX. 
I have not able to resolve the issue yet.

[PEHOWE]

Hello @Abhishek_Tirkey ,
Sorry to hear you hare having issues.  I am looking at the information you provided. 
In the Configuration Tab you need to provide a "CallerID", which is a valid Phone Number.
In the screen capture you have  provided "+17433304211".  The information in what you have provided is Country code (+1) followed by a 3 digit area code (743) followed by 7 digit subscriber number (3304211).
Have you tried changing the CallerID to exclude the Country Code information?

You did provide 3 lines of one log files, Did you check all the log files for messages related to Twilio?
I assume that the Thing you created was named "twilio_TH"

You have confirmed that your account is an Administrator Account. While that should provide full access to the environment. 

Have you added your account to the Permissions Tab (Visibility, Run Time, Design Time,  Ownership)
While I agree that this should not be necessary. The error message you provided "Unable to assign default permissions: null" makes me want to ensure that I know the permission is assigned. 

If you make these updates and still are having issues. Please provide a full set of logs and I will review them for other information which might help.

Regards,

Pehowe

[Abhishek_Tirkey]

Hi @PEHOWE 

I appreciate your attention to my issue. I have tried the same but nothing works again.
I have tried changing the CallerID and other information in all possible combinations. I have also added my account to the Permissions Tab and shared screenshots in previous conversations.

I will share the script logs for your reference.

The issue might be arising because I am using my company laptop, which could be preventing me from implementing Twilio on my desktop.

[PEHOWE]

Hello @Abhishek_Tirkey ,
I have done a search of the questions which have been asked on this topic. Looking for people which had issues.
 

• Ensure that ThingWorx Platform can reach api.twilio.com with telnet
  • open a command shell on the ThingWorx Server
  • "telnet api.twilio.com 443"
• if the telnet connection is refused I located this comment from a StackOverflow post:
  • All connections to the Twilio API endpoints must use HTTPS and so if you have no SSL Cert for your Wordpress website it will refuse the request. You will need to get an SSL Certificate for your website in order to call the API endpoints from your Wordpress site/domain. Disabling SSL Certificate Validation setting on Twilio dashboard is for calls from Twilio to your servers, not the other way around.
• Confirm no firewall is blocking communications with api.twilio.com
• Use the Wireshark tool to review traffic flow between ThingWorx Platform and api.,twilio.com
• CS216593 - Unable to post content to ThingWorx from Twilio with Filter Content-Type checked in ThingWorx Platform Subsystem

Hope this information is helpful. Let me know what you find.

Regards,

Pehowe