We recently upgraded our Dev and Test environment to V 9.0.
Dev

Test

While importing a solution from Dev to Test which had SiteMap we got the below issue.
“The SiteMapName in the AppModuleSiteMap is null or empty”
It turns out that the following tags were required and were missing in the Customization.xml

We added that tag and were able to import the solution successfully.
Interestingly if we export the same solution from Test and search for this tag, it is again missing, however,…















