hello all,

i am working on 

following example of visual force custome controller
plz reff below link

https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_controller_custom.htm

and receved folling error

List has no rows for assignment to SObject
An unexpected error has occurred. Your development organization has been notified.

not sure whats wrong, and why it is not getting account data for user though there are multiple records in account for logged in user, who is developing the same vf page.

inputs are highly appreciated.

thank you,
vanita
 

I am working on Spperbatge and received this error


Challenge Not yet complete... here's what's wrong: 
There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: TYCBVJOO
Close errors

Expedite help is appreciated. I am stuck due to this error.
PS: I am working on new Org.

Thanl you,
Vanita Kedar

hello all,

i am working on 

following example of visual force custome controller
plz reff below link

https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_controller_custom.htm

and receved folling error

List has no rows for assignment to SObject
An unexpected error has occurred. Your development organization has been notified.

not sure whats wrong, and why it is not getting account data for user though there are multiple records in account for logged in user, who is developing the same vf page.

inputs are highly appreciated.

thank you,
vanita
 

I am working on Spperbatge and received this error


Challenge Not yet complete... here's what's wrong: 
There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: TYCBVJOO
Close errors

Expedite help is appreciated. I am stuck due to this error.
PS: I am working on new Org.

Thanl you,
Vanita Kedar

I'm doing the simple lightning components challenge and have hit this problem in my existing trailhead org and a brand new dev org that I've just created:

Challenge not yet complete... here's what's wrong: 
There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: QVWBQHAG