This actually happens with any version newer than 1.0.0-pre.44. After adding the com.unity.entites package to my project (empty 2D project) I get this compilation error:
error CS0006: Metadata file 'Library/PackageCache/com.unity.ext.nunit@2.0.3/net35/unity-custom/nunit.framework.dll' could not be found
Is there some quick fix for this?
Or can someone please share a working manifest.json with the newer Entities package (pre.65) ?
Just restart the editor, it won’t happen again.
Turning it off and on again did not help.
However….
It appears we should be using “com.unity.ext.nunit”: “1.0.6”, as opposed to “2.0.3” (which is the default when starting a new project). Downgrading to “1.0.6” solved the problem for me.