PHPUnit is Working With Command Line, but not with Eclipse - eclipse

Question

Whenever I run a test file from eclipse it works and display result as:
. 1/1 (100%)
Time: 371 ms, Memory: 8.00MB
OK (1 test, 1 assertion)
But If I run the same test from the Eclipse Oxygen, I get the error:
PHP Fatal error: Declaration of PHPUnitLogger::addFailure(Test $test, AssertionFailedError $e, $time): void must be compatible with PHPUnit\Framework\TestListener::addFailure(PHPUnit\Framework\Test $test, PHPUnit\Framework\AssertionFailedError $e, float $time): void in /tmp/phpunit_printer/PHPUnitLogger.php(415) : eval()'d code on line 1
I downloaded phpunit-7.1.phar, and installed it globally by making it executable and moving it to /usr/local/bin and for Eclipse, I have downloaed in the Download directory and without making it executable I added it into my Eclipse Project as an External Phar but it is not working and giving the above error.
Can someone help me fixing the issue?
By the way, I am a NetBeanse User, but NetBeans is not supporting PHP7.1 that's why moving to Eclipse.
UPDATE
Here is my test file:
<?php
namespace tests\Unit\;
use PHPUnit\Framework\TestCase;
class MyTest extends TestCase
{
public function testSimple() {
$this->assertEquals(1, 1);
}
}

Answer 1

I had exactly the same problem with PHPUnit 7.5.14 and didn't find a solution.
Since I wanted to test my application running with PHP 7.1, I decided to try PHPUnit 6 and it worked at once. So PHPUnit 6.5.14 did the trick for me.
It seems Eclipse is not compatible with PHPUnit 7. My Eclipse Version is 2018-12 (4.10.0) with PDT 6.2. After switching to PHPUnit 6 other problems (that I managed to find workarounds for) were gone too. For example the generated class code overrides TestCase::__construct without calling the parent constructor. It seems to be a problem with PHPUnit 7, not so with 6.
I didn't find a compatibility chart of Eclipse PDT to support my thesis.