Error during import of package

Good day!

I need help to understand an error during install of package.

Terrasoft.Core.Packages.Exceptions.InvalidDescriptorInFileSystemException: Invalid discripter: 
Reading of property "Type" is not supported 
Path: UsrTest ---> Terrasoft.Common.InvalidObjectStateException: Reading of property "Type" is not supported
   at Terrasoft.Core.Packages.PackageFileStorage.Read(DataReader reader, Package package) 
   at Terrasoft.Core.Packages.PackageFileStorage.b__201_0(JsonDataReader reader, Package package) 
   at Terrasoft.Core.Packages.PackageFileStorage.InitializeDescriptor[T](Action2 initializeDescriptor, String descriptorFilePath, T descriptor) 
   at Terrasoft.Core.Packages.PackageFileStorage.CreatePackageDescriptorBasedOnDirectory(String directoryPath, Action2 initializeDescriptor) 
   --- End of inner exception stack trace --- 
   --- End of inner exception stack trace --- 
   at Terrasoft.Core.AppInstallation.Packages.Operations.PackageZipOperations.ThrowIfPackageStorageItemErrorsExist(PackageStorage packageStorage) 
   at Terrasoft.Core.AppInstallation.Packages.Operations.PackageZipOperations.Load() 
   at Terrasoft.Core.AppInstallation.Packages.Backup.ZipPackageBackupManager.ComposePackages(String sourcePackagesPath, String tempFilesPath) 
   at Terrasoft.Core.AppInstallation.Packages.Backup.ZipPackageBackupManager.CreateBackup(String sourcePackagesPath, String tempFilesPath, String backupPath, String code) 
   at Terrasoft.Core.ServiceModelContract.PackageInstaller.PackageInstallerServiceInternal.<>c__DisplayClass25_0.b__0() 
   at Terrasoft.Core.ServiceModelContract.PackageInstaller.BaseInstallerServiceInternal.InvokeWithLogging(Action action) 

Install log is in the attachment.



It works without any errors and is imported correctly in other systems (on versions higher).



Is there something I can change in the package? Or is it a problem in the system I import package in?   

How can I fix this?



Thank you in advance!