Spurious errors when taking only screenshots

[lrem]

When disabling html report, I get the error:

[07:42:48] I/plugins -  	 Fail:  jasmine2-protractor-utils Runtime 
[07:42:48] E/plugins - 		Failure during postResults: ENOENT: no such file or directory, scandir './reports/htmlReports'
[07:42:48] E/plugins - 		Error: ENOENT: no such file or directory, scandir './reports/htmlReports'
		    at Object.fs.readdirSync (fs.js:910:18)
		    at /home/travis/build/lrem/ladders/web/node_modules/jasmine2-protractor-utils/index.js:344:24
		    at ManagedPromise.invokeCallback_ (/home/travis/build/lrem/ladders/web/node_modules/selenium-webdriver/lib/promise.js:1366:14)
		    at TaskQueue.execute_ (/home/travis/build/lrem/ladders/web/node_modules/selenium-webdriver/lib/promise.js:2970:14)
		    at TaskQueue.executeNext_ (/home/travis/build/lrem/ladders/web/node_modules/selenium-webdriver/lib/promise.js:2953:27)
		    at asyncRun (/home/travis/build/lrem/ladders/web/node_modules/selenium-webdriver/lib/promise.js:2860:25)
		    at /home/travis/build/lrem/ladders/web/node_modules/selenium-webdriver/lib/promise.js:676:7
		    at <anonymous>
		    at process._tickCallback (internal/process/next_tick.js:188:7)

Example: https://travis-ci.org/lrem/ladders/builds/274494608