Null error setting up global variable and connector

📐 Rule Machine®
1

I setup a Global Variable, type Number, and then clicked to create a Connector, and it gave me a

Unexpected Error
An unexpected error has occurred trying to load the app. Check Logs for more information.
Error: Cannot invoke method sort() on null object

The log shows:

[app:35](http://10.0.0.30/logs/past#app35)2019-10-22 10:17:55.293 pm [error](http://10.0.0.30/installedapp/configure/35)java.lang.NullPointerException: Cannot invoke method sort() on null object on line 148 (globalVar)

I'm now unable to access the Global Variables to delete it, as this error occurs everytime I try and access the "Create, Set or Delete Global Variables" section.

I dont even know what a connector is, but I clicked on it to try and find out. As I was trying to work out how I could use my global variable in a delay action.

Any ideas how to resolve this error, and why it occurred in the first place?

I'm on the latest version.

2

See PM I am sending you.

3

@bravenel

Strange this just happened to The poster above. It just happened to me too. Same exact scenario except mine was a Boolean. Any help would be welcome.

LJ

4

You'll need to either get bravenel to fix your database for you, or restore from a previous backup.

5

did he explain how to avoid this in the future? Did We do something wrong?

LJ

6

What steps did you do that caused the problem?

7

Same as described above. I created my first Global variable. Named it, and set it to boolean. Then I clicked on connector to figure out what that was. I got an Sort() error. It then took me back out to the main Apps screen. When i went back in to Rule Machine and clicked on the global variable i created I get the same sort() null error. The global variable was created in the listing, but the connector field is blank. Don't know what the connector is or does.

So I can't get into the global variable screen at this point to edit or delete. I am going to try rebooting the hub to see if that clears it.

LJ

EDIT: the error is:
2019-10-23 11:53:34.571 am errorjava.lang.NullPointerException: Cannot invoke method sort() on null object on line 148 (globalVar)

8

See PM I sent you.