error message while loading GitHub package

Did you read the error message?

it says error in loadNamespace(). I am new to R and I don't know what that means.
Thank you

please write the full message here. its the only way we might possibly attempt to understand what your problem might be


  • twochoiceRL")
    Error in loadNamespace(x) : there is no package called ‘devtools’

Error in library(twochoiceRL) : there is no package called ‘twochoiceRL
this is the error message.

You must first install devtools before using its functions :


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