How to solve ERROR: You must define the ‘items’ variable.

PennController for IBEX Forums Support How to solve ERROR: You must define the ‘items’ variable.

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  • #10852
    anitajookyeong
    Participant

    Hello,
    I did not change any settings or codes but for some reason I suddenly started getting this error message: ERROR: You must define the ‘items’ variable. The javascript console says “Uncaught ReferenceError: PennController is not defined at main.js:1:1”.
    It is very strange because I don’t have any issues with the other experiment I am conducting.
    Here is the link to the experiment: https://farm.pcibex.net/r/RaxiiH/
    What could be the issue?

    #10869
    Jeremy
    Keymaster

    Hello,

    Sorry for the late reply. This error has popped up more frequently recently because an update to PennController in the Empty Project unexpectedly affected existing projects. Your project appears to no longer have the PennController.js file in its Modules folder. Just download the file from PennController’s github repository and then upload it to your project’s Modules folder

    Jeremy

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