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Hi Stephen, I have added a parameter of "debug" with a value of "yes" and I'm still getting a response of "Error: Sorry, there was an error connecting you to the application.". Is there a support email address for the ceLTIc project? Thanks, Brian -----Original Message----- From: WebPA [mailto:[log in to unmask]] On Behalf Of Stephen P Vickers Sent: 10 August 2015 10:22 To: [log in to unmask] Subject: Re: Trial LTI This trial service is offered by the ceLTIc project, not by the WebPA project. If you send a custom parameter named "debug" with a value of "true" you should see a more informative error message. Alternatively, if your tool consumer supports the error log option, this error message should also be found in its log files. Stephen On 10/08/2015 08:45, Osborne, Brian wrote: > I have signed up for your 14 day trial and I am posting to your > service, but I always receive a response back that reads “Error: > Sorry, there was an error connecting you to the application.”. > > My POST data is: > > *Calling:*http://eval.ltiapps.net/webpa/mod/lti/ (or > http://eval.ltiapps.net/webpa/mod/lti/index.php) > > > *Shared secret:* "E38uVDmEgBbPs0crd7w4ZGqFwYBlrR3v" > > *Encoded Signature Params:* " > POST&http%3A%2F%2Feval.ltiapps.net%2Fwebpa%2Fmod%2Flti%2F&ext_basiclti_submit%3DPress%2520to%2520continue%2520to%2520external%2520tool%26launch_presentation_document_target%3Diframe%26launch_presentation_height%3D240%26launch_presentation_locale%3Den-GB%26launch_presentation_width%3D320%26lis_result_sourcedid%3DStudyNet%26lti_message_type%3Dbasic-lti-launch-request%26lti_version%3DLTI-1p0%26oauth_consumer_key%3DDVMQPCE2-SDYX-TRZN-8MEF-BCTWQPR5ZSQS%26oauth_nonce%3DJ98SFfiYs11Lk47ue2QnplNpFKqE0ht0%26oauth_signature_method%3DHMAC-SHA1%26oauth_timestamp%3D1438956933%26oauth_version%3D1.0%26roles%3DInstructor%26tool_consumer_info_product_family_code%3DStudyNet%26tool_consumer_info_version%3D2015%26tool_consumer_instance_contact_email%3Dltdu%2540herts.ac.uk%26tool_consumer_instance_description%3DUniversity%2520of%2520Hertfordshire%2520%2528StudyNet%2529%26tool_consumer_instance_guid%3Dstudynet.herts.ac.uk%26tool_consumer_instance_name%3DStudyNet" > > *HEADER X-Authorization* > OAuth realm => "http://eval.ltiapps.net/webpa/mod/lti/" > oauth_nonce => "J98SFfiYs11Lk47ue2QnplNpFKqE0ht0" > oauth_signature => "6778472f726b646651454776674267715539397966413d3d" > oauth_consumer_key => "DVMQPCE2-SDYX-TRZN-8MEF-BCTWQPR5ZSQS" > oauth_signature_method => "HMAC-SHA1" > oauth_version => "1.0" > oauth_timestamp => "1438956933" > > *POST BODY* > tool_consumer_info_product_family_code=StudyNet<i_version=LTI-1p0&ro > les=Instructor&tool_consumer_instance_name=StudyNet&tool_consumer_inst > ance_description=University%20of%20Hertfordshire%20%28StudyNet%29&laun > ch_presentation_width=320&tool_consumer_instance_guid=studynet.herts.a > c.uk&ext_basiclti_submit=Press%20to%20continue%20to%20external%20tool& > launch_presentation_locale=en-GB&tool_consumer_instance_contact_email= > ltdu%40herts.ac.uk&lis_result_sourcedid=StudyNet<i_message_type=basi > c-lti-launch-request&tool_consumer_info_version=2015&launch_presentati > on_height=240&launch_presentation_document_target=iframe > > Any idea what is wrong, or is it possible to change the response > message to indicate the issue rather than just say there has been an error? > > Thanks, > > Brian Osborne > > University of Hertfordshire >