Can't update apps through app store (mountain lion)

[docgerrard]

I keep getting

"An Error Has Occurred

The operation couldn’t be completed. (NSURLErrorDomain error -1100.)"

 

[jbzcar]

I keep getting

"An Error Has Occurred

The operation couldn’t be completed. (NSURLErrorDomain error -1100.)"

Getting the same here.

 

[mpaquette]

Same here on 2 different Macs.

 

[Kerry Sanders]

I tried updating Xcode a few days ago and got this error. It is still happening and I am unable to perform the update. Not sure what the error could be caused by nor how to fix it.