Communication error: (SyntaxError) : Unexpected token < - Original JSON-tex

I am using Vaadin with Grails - and the latest version of the Grails plugin 1.7.4

I am not sure if this issue is related to the plugin but any background UIDL request fails. Example with a simple TreeTable taken from the example. I’ve actually coded this in both Groovy and Java with the same result:

[/i]
14:50:25:083 Total layout phase time: 12ms
14:50:29:165 Variable burst to be sent to server:
14:50:29:165 0 (class com.vaadin.client.ui.ui.UIConnector) :
14:50:29:166 com.vaadin.shared.ui.ui.UIServerRpc.resize([598, 1280, 1280, 598]
)
14:50:29:166 3 (class com.vaadin.client.ui.treetable.TreeTableConnector) :
14:50:29:166 v.v(toggleCollapsed : 1)
14:50:29:169 Making UIDL Request with params: 65ea05de-5529-4947-bc90-a6a35ba0db4c[[“0”,“com.vaadin.shared.ui.ui.UIServerRpc”,“resize”,[“598”,“1280”,“1280”,“598”]
],[“3”,“v”,“v”,[“toggleCollapsed”,[“s”,“1”]
]]]
14:50:29:180 Server visit took 11ms
14:50:29:184 Communication error: (SyntaxError) : Unexpected token < - Original JSON-text: html>

[/i]

This happens when I click on the arrow that should expand the TreeTable item.

Hi James,

I am facing the similar issue.

Could you please let me know how did you solve this issue?

Thanks in Advance

Thanks,
Deepali

Hi,

I’m surprised you still have the same issue I had 3 years ago. Answer is we moved away from Vaadin…

Cheers,

James