After login to vSphere Client, you get below error:
Unhandled Exception (1) Unfortunately, we hit an error that we weren't expecting. The client may continue working, but at this point, we recommend refreshing your browser and submitting a bug report.
As far as I know it affects ESXi 5.5, ESXi 6.0 Web interface (ESXi Embedded Host Client) and ESXi 6.5 vSphere Client.
After clicking Details, you got:
Cause: Error: [$rootScope:inprog] errors.angularjs.org/1.3.2/$rootScope/inprog?p0=%24digest Version: 1.8.0 Build: 4516221 ESXi: 6.5.0 Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36 Exception stack: Error: [$rootScope:inprog] errors.angularjs.org/1.3.2/$rootScope/inprog?p0=%24digest at 192.168.57.200/ui/scripts/main.js:263:20611 at l (192.168.57.200/ui/scripts/main.js:265:12567) at k.$apply (192.168.57.200/ui/scripts/main.js:265:16690) at HTMLInputElement.<anonymous> (192.168.57.200/ui/scripts/main.js:267:828) at HTMLInputElement.dispatch (192.168.57.200/ui/scripts/main.js:262:14464) at HTMLInputElement.r.handle (192.168.57.200/ui/scripts/main.js:262:11251) at prop (192.168.57.200/ui/scripts/main.js:263:3018) at n.access (192.168.57.200/ui/scripts/main.js:262:6702) at n.fn.init.prop (192.168.57.200/ui/scripts/main.js:263:2642) at V.$set (192.168.57.200/ui/scripts/main.js:264:21408)
After clicking Reload, you will get back to logon page.
Resolution
According to VMware KB 2149798 it is a known issue. It is resolved in VMware ESXi 6.0 Patch Release 5 and in Host Client 1.19.0 or later. Seems only Chrome is affected, so as workaround you can use different browser (Internet Explorer or Firefox). You can also hit the [ESC] Key which will clear the error. There is also another option. I noticed, this error appears only when you press [ENTER] after typing login and password. If you click [Log in] button, you will login without this error message.
Check other VMware related issues.