PUN Build Error: An assembly with the same name `Photon3Unity3D' has already been imported

Tambilin

Does anyone know what might be causing this error when building my project in unity 5.6.0f3? I have upgraded to the most recent version of the PUN Classic asset. In the plugins folder there is a Photon3Unity3D.dll and another dll with the same name in a Metro Folder and another in a WP8 folder. If I delete the dll within one of these folders the project then builds fine however a few moments later unity re-imports the dll resulting in the same error. Below is the error message displayed:

error CS1704: An assembly with the same name `Photon3Unity3D' has already been imported. Consider removing one of the references or sign the assembly
Assets/Plugins/Photon3Unity3D.dll (Location of the symbol related to previous error)
Assets/Plugins/WP8/Photon3Unity3D.dll (Location of the symbol related to previous error)

Compilation failed: 1 error(s), 0 warnings

JohnTube

Hi @Tambilin,

Thank you for choosing Photon!

It looks like you updated PUN from an old version.
"Assets/Plugins/WP8/Photon3Unity3D.dll" should no longer exist in the recent versions.
So either delete that single file or clean up all PUN files and import again.

[Deleted User]

Hi @Tambilin,

those are libraries used for different platforms. We have pre-configured them to work with Unity 5 and up to only get used on the correct target platform. Since you still have the WP8 folder in there, you might had a very old version of PUN in the project once (which is fine). However the WP8 folder has been removed some time ago.

To fix this, I guess it should be enough, to simply delete the WP8 folder from the Plugins folder. If this however doesn't work, I'm asking you to remove the entire Plugins and re-import it again. If this does not fix the problem, too, please let me know.

Tambilin

Thanks! Deleting the whole plugins folder and then importing it via the asset store, then performing a complete reimport via Assets->Reimport All, seems to have fixed the issue! I have spent weeks trying to figure this one out