Saving Dashboard issue

HI Guys.
After i upgrade my grafana to version 4.4.2 i cant save dashboard.
I only can save only new dashboards.
at the console i receive this error:

Uncaught TypeError: Cannot read property ‘Constructor’ of undefined
at b.h.show (boot.8fcdddf2.js:8)
at b.enter (boot.8fcdddf2.js:8)
at HTMLAnchorElement.e (boot.8fcdddf2.js:48)
at HTMLAnchorElement.handle (boot.8fcdddf2.js:49)
at HTMLAnchorElement.dispatch (boot.8fcdddf2.js:49)
at HTMLAnchorElement.q.handle (boot.8fcdddf2.js:49)
boot.8fcdddf2.js:52 TypeError: e.modal is not a function
at https://ticka.sentinelone.net/grafana/public/app/boot.8fcdddf2.js:8:27580
Possibly unhandled rejection: {}
(anonymous) @ boot.8fcdddf2.js:52

We suspect it is something todo with the tooltip mechanism you added to the buttons.

If you use Ctrl+s (or Cmd+s if you are on a Mac) does that save the dashboard? Any errors in the Grafana server logs?

@Danielle I also facing the issue with text html panel with below error
TypeError: e.modal is not a function

Even after pressing cctrl+s also same error .
Error:
boot.8fcdddf2.js:8 Uncaught TypeError: Cannot read property ‘Constructor’ of undefined
at b.h.show (boot.8fcdddf2.js:8)
at b.enter (boot.8fcdddf2.js:8)
at HTMLAnchorElement.e (boot.8fcdddf2.js:48)
at HTMLAnchorElement.handle (boot.8fcdddf2.js:49)
at HTMLAnchorElement.dispatch (boot.8fcdddf2.js:49)
at HTMLAnchorElement.q.handle (boot.8fcdddf2.js:49)

Pls suggest

@sreenath what version of Grafana are you using and on which OS and browser are you running it on?

we are using 4.4.2 and OS is Ubuntu ,browser is chrome

I ran this command to run Grafana 4.4.2:

docker run -d --name=grafana442 -p 3003:3000 grafana/grafana:4.4.2

Went to http://localhost:3003 with Chrome, logged in, created a dashboard with a text panel and did not get an error.

If you test in incognito mode, do you get an error? Maybe it is a Chrome plugin (uBlock or similar)? Do you get the same error in Firefox?