I am using the Wolfram Engine 12.2 and Unity 2020.3.3f1 on Windows 10 20H2. When I try to open the roll-a-ball example I get several error messages.
In[3]:= <<UnityLink`
In[4]:= UnityOpen["ExampleData/roll-a-ball"]
Syntax::com: Warning: comma encountered with no adjacent expression. The expression will be treated as Null. (line 469 of "C:\Users\janme\AppData\Roaming\WolframEngine\Paclets\Repository\UnityLin k-2020.02.02\Kernel\UnityAssets.m").
UnityLinkDeveloper
$UnityIcons::shdw: Symbol $UnityIcons appears in multiple contexts {UnityLinkDeveloper
, UnityLink}; definitions in context UnityLink
Developer` may shadow or be shadowed by other definitions.
UnityLinkDeveloper
$UnityIconSizes::shdw: Symbol $UnityIconSizes appears in multiple contexts {UnityLinkDeveloper
, UnityLink}; definitions in context UnityLink
Developer` may shadow or be shadowed by other definitions.
Table::iterb: Iterator {target, $UnityNETBuildTargets} does not have appropriate bounds.
Table::iterb: Iterator {group, $UnityNETBuildTargetGroups} does not have appropriate bounds.
Get::noopen: Cannot open C:\Users\janme\AppData\Roaming\WolframEngine\Paclets\ Repository\UnityLink-2020.02.02\Kernel\UnityNETComponents.m.
RuleDelayed::rhs: Pattern net_ appears on the right-hand side of rule saveUnityScene[(net)?NETObjectQ, fileFile] :> saveUnityScene[net_, First[file]].
Get::noopen: Cannot open C:\Users\janme\AppData\Roaming\WolframEngine\Paclets\ Repository\UnityLink-2020.02.02\Kernel\UnityEditor.m.