Jmeter, the test results are saved xml Times error approach loading results file -see log file problem

Using JMeter test concurrency error when saved test file: Error loading results file - see file log
Solution: Create a text file (any type can be), add in the file
<xml version = "1.0" encoding = "UTF-? 8 "?>
<TestResults Version =" 1.2 ">
</ TestResults>
on it.