Test failed but keep the grunt process alive

I am trying an angularJS hands-on and in which I was expected to create an angularJS application as defined below:

Pick2get being main template.

Electronics, Books, Wishlist being the partial templates.

Configure these templates as routes and use ngRoute

I am passing all the tests present in the testing file with this plunker.
but still failing the handson with below message.
I don’t even know what this error is related to, I searched this error but can’t find any solution. suggest me something related to it


HeadlessChrome 0.0.0 (Linux 0.0.0): Executed 0 of 5 SUCCESS (0 secs / 0 secs)
[1A[2KHeadlessChrome 0.0.0 (Linux 0.0.0): Executed 1 of 5 SUCCESS (0 secs / 0.029 secs)
[1A[2KHeadlessChrome 0.0.0 (Linux 0.0.0): Executed 2 of 5 SUCCESS (0 secs / 0.035 secs)
[1A[2KHeadlessChrome 0.0.0 (Linux 0.0.0): Executed 3 of 5 SUCCESS (0 secs / 0.042 secs)
[1A[2KHeadlessChrome 0.0.0 (Linux 0.0.0): Executed 4 of 5 SUCCESS (0 secs / 0.045 secs)
[1A[2KHeadlessChrome 0.0.0 (Linux 0.0.0): Executed 5 of 5 SUCCESS (0 secs / 0.049 secs)
[1A[2KHeadlessChrome 0.0.0 (Linux 0.0.0): Executed 5 of 5 SUCCESS (0.057 secs / 0.049 secs)
Running "concurrent:process" (concurrent) task

    [4mRunning "protractor:your_target" (protractor) task[24m
    [16:52:14] I/launcher - Running 1 instances of WebDriver
    [16:52:14] I/direct - Using ChromeDriver directly...
    [16:52:16] W/element - more than one element found for locator by.binding("item") - the first result will be used
    [16:52:16] W/element - more than one element found for locator by.binding("item") - the first result will be used
    [16:52:17] W/element - more than one element found for locator by.binding("item") - the first result will be used
    [16:52:17] I/launcher - 0 instance(s) of WebDriver still running
    [16:52:17] I/launcher - chrome #01 failed 1 test(s)
    [16:52:17] I/launcher - overall: 1 failed spec(s)
    [16:52:17] E/launcher - Process exited with error code 1

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