I get the following errors:
1>plugineditor.cpp(20) : error C2664: ‘juce::Slider::addListener’ : cannot convert parameter 1 from 'JuceDemoPluginAudioProcessorEditor *const ’ to 'juce::Slider::Listener *'
1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
1>plugineditor.cpp(28) : error C2664: ‘juce::Slider::addListener’ : cannot convert parameter 1 from 'JuceDemoPluginAudioProcessorEditor *const ’ to 'juce::Slider::Listener *'
1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
and in pluginprocessor:
1>pluginprocessor.cpp(284) : error C2259: ‘JuceDemoPluginAudioProcessorEditor’ : cannot instantiate abstract class
1> due to following members:
1> ‘void juce::Value::Listener::valueChanged(juce::Value &)’ : is abstract
1> juce\juce_amalgamated.h(12349) : see declaration of ‘juce::Value::Listener::valueChanged’