# Designer error\_Raspberry Pi OPC UA Server

**URL:** <https://forum.inductiveautomation.com/t/designer-error-raspberry-pi-opc-ua-server/28032>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [September 5, 2019, 12:08pm UTC](https://forum.inductiveautomation.com/t/designer-error-raspberry-pi-opc-ua-server/28032 "2019-09-05T12:08:31Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![angel.I994](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/angel.i994/32/10752_2.png) [@angel.I994](https://forum.inductiveautomation.com/u/angel.I994)\
**Post date:** [September 5, 2019, 12:08pm UTC](https://forum.inductiveautomation.com/t/designer-error-raspberry-pi-opc-ua-server/28032/1 "2019-09-05T12:08:31Z")

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I have an OPC UA Server within a Raspberry Pi. I have installed Ignition in Windows, but when I’m making my project in the designer, I can’t add any variable from the OPC UA Server in Perspective Home page. However I can add them to a Vision Window.  
Apart from this , I can’t login in Vision Client Launcher. It says:  
Login failed, please retry again.  
I used the same username and password of Ignition edge.