Error opening demo.jmx on JMeter 5.1.1 on Windows 10

[Neil]

Error opening demo.jmx on JMeter 5.1.1 on Windows 10:

Problem loading XML from:'\demo-master\docs\demo.jmx'. 
Cause:
CannotResolveClassException: kg.apc.jmeter.vizualizers.CorrectedResultCollector

 Detail:com.thoughtworks.xstream.converters.ConversionException: 
---- Debugging information ----
cause-exception     : com.thoughtworks.xstream.converters.ConversionException
cause-message       : 
first-jmeter-class  : org.apache.jmeter.save.converters.HashTreeConverter.unmarshal(HashTreeConverter.java:67)
class               : org.apache.jmeter.save.ScriptWrapper
required-type       : org.apache.jmeter.save.ScriptWrapper
converter-type      : org.apache.jmeter.save.ScriptWrapperConverter
path                : /jmeterTestPlan/hashTree/hashTree/hashTree[3]/kg.apc.jmeter.vizualizers.CorrectedResultCollector
line number         : 1866
version             : 5.1.1 r1855137

[Neil]

Nevermind, I needed to actually follow your directions and install PluginManager!
https://stackoverflow.com/a/25767536/268066

[Neil]

The cool thing is, once PluginManager is properly in place, it offers to install any of the other required plugins for you.

[Byron Katz]

Just wanted to remark that I made a change to the documentation on perf testing related to this issue. Find it here: 26debbb

Thanks for your help man.