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> 1) I have WebPA installations on both dev and live. From the point of > view of the WebPA admin user on both dev and live, at home > lti > sources > edit, > the Key field seems to be a label (no box surrounding it and not > editable, though it is selectable). It is set to the value > "thisisakey". See screenshot. Each key should only be used for a single instance of a tool consumer. Try using a new key and secret. > 2) when I add the > "debug=true" > to the custom parameters > I see no additional output. Where should I look for this? The error message displayed should have changed (see your previous screenShot2.png file). [I assume you did not include the double quotes when defining the custom parameter.] > 3) Looking in the Blackboard Logs? > There are well over 300 of these. Any ideas about where to start? Start with those that cover the current time period - that should cut the list down considerably. The error will be logged in either the bb-services log file or the tomcat stdout-stderr file, depending upon the version of the BasicLTI building block you are using. (Note that the error will not be logged if it has been displayed as a result of passing the debug=true parameter.) > 4) Regarding the clocks on the servers. WebPA is hosted on site here in > Sheffield. The Blackboard installation is in managed hosting at > Blackboard's premises in Amsterdam. Yes, but are they in sync with each other, or within a few minutes? Stephen > On 12/11/2015 11:04, Stephen P Vickers wrote: >> Have you checked the Blackboard log files for a more detailed error >> message? Otherwise sending a custom parameter of "debug=true" on the >> launch should display the more detailed error message. The most >> likely causes are the clocks on each server are too different, or you >> are trying to use the same consumer key with more than one tool >> consumer (having different GUID values). >> >> Stephen >> >> On 12/11/2015 10:24, Stephen Broadbridge wrote: >>> Hi All >>> >>> I am a newbie here so please forgive me if I am using this in the >>> wrong way. >>> >>> I have a new installation of WebPA. This installation was created from >>> an older installation (A new installation of WebPA was installed on a >>> new VM and the old, live database migrated to this new installation). >>> >>> When I click on a content item that uses this new installation, in the >>> first instance, I get the splash screen that is configured in the webpa, >>> LTI management GUI. See the text in screenShot1.png attached. >>> >>> However, when I click Submit, I get an error message: - >>> Sorry, there was an error connecting you to the application. >>> See screenShot2.png >>> >>> Any suggestions about where to look for the solution to this problem >>> would be most welcome. >>> >>> Thanks. >>> >>> Stephen >>> >>> -- >>> Stephen Broadbridge >>> VLE System Administrator >>> Corporate Information and Computing Services >>> University of Sheffield >>> 00 44 (0) 114 222 3048 >>> > >