CommServe Install Error – MongoDatabase

So you are running a fresh new install of CommServe using SP18 HFP27 and after sometime during the install you see the screen below.

You try again, but the same message keeps opening up. Then you view the logs and this is showing;

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8672 5 07/15 03:00:03 ### ### ### – Post install configuration for MongoDatabase …
8672 5 07/15 03:00:03 ### ### ### – Error: LocalConfiguration Error: System.ArgumentException: Illegal characters in path.
at System.IO.Path.CheckInvalidPathChars(String path, Boolean checkAdditional)
at System.IO.Path.Combine(String path1, String path2)
at InstallCommon.Target.get_dMongoDBData()
at InstallCommon.Features.MongoDatabase.InstallMongoDB()
at InstallCommon.Features.MongoDatabase.DoPostInstallConfig(ITaskUI taskUI)
at ConfigureClientTool.ViewModels.LocalConfigViewModel.DoWork(Object sender, DoWorkEventArgs e).

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The error above seems to be a result of Commvault installation not populating all the necessary entries, even though it is a fresh install….

The easiest route I found was to download an earlier version in my case SP16, created my media and the install was successful. From there you can upgrade to SP17 and so on.

Hope it helps.