During development suddenly Ax stop working. When I try to connect web url https://usnconeboxax1aos.cloud.onebox.dynamics.com. It shows page can not display. Previously it was working fine.

On Event viewer I found following exception.


The description for Event ID 110 from source Microsoft Dynamics AX cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.


If the event originated on another computer, the display information had to be saved with the event.


The following information was included with the event:


AX is shutting down due to an error.

Duplicate metadata element has been detected in multiple modules. Please verify that application is deployed correctly and installed modules are compatible. Following elements are defined in more than one module:

Element AxService/tstColorService is defined in the following modules: ServiceTest, ApplicationSuite


Solution: During development I created artifacts with same name in different models on different occasions. Surprisingly no warning or error appears during development about object of same name already exists in AOT. I open required solution rename artifacts and build solution. AX web application start working again.