JUCE Assertion Failure in Audio Processor

I’m getting this error in the JUCE Audio Processor and I’m not sure how to fix it. I’m very new to coding so let me know if anyone has any ideas.

You can see the help information just above the jassert. It is highly likely that you forget to include a version hint in the parameter constructor, i.e., the first argument should be something like juce::ParameterID("gain", 1) instead of “gain".