I updated to Studio 2019 SR2 15.2.4.1693 today and then I couldn't open any package I exported from WorldServer.

Those packages could be opened in an earlier version of 2019.

Would you please help with this issue?

Thank you.

Error message:

Error processing command line arguments: The package project file was not found. A package should contain exactly one project file. USAGE: SDLTradosStudio.exe [/help|/?] /arg1 val1 /arg2 val2 Task: NoAutoUpdate Description: Starts the application without automatically checking for updates. Usage: SDLTradosStudio.exe /noautoupdate Arguments: /noautoupdate Starts the application without automatically checking for updates. Task: Open Retrofit Description: Opens a retrofit file in the Alignment View. Usage: SDLTradosStudio.exe /openRetrofit <retrofit> Arguments: /openRetrofit The full file path to the retrofit file you want to open. Task: Open Alignment Description: Opens an alignment in the Alignment View. Usage: SDLTradosStudio.exe /openAlignment <alignment> Arguments: /openAlignment The full file path to the alignment you want to open. Task: Create Project Description: Starts the Create Project wizard. Usage: SDLTradosStudio.exe /createProject [/files <file1> [<file2> <folder1> ...]] [/name <name>] [/template <template>] [/referenceProject <referenceProject>] Arguments: /createProject Starts the Create Project wizard. /files The full file path of one or more documents or folders to add to the Create Project wizard. /name The name of the Project /template An existing template name or file path to use. /referenceProject An existing reference project file path to use. Task: Open Document Description: Opens a document or a number of documents in the Editor View. Usage: SDLTradosStudio.exe /openDocument <document1> [<document2> ...] Arguments: /openDocument The full file path of one or more documents to open. Task: Open File Based TM Description: Opens a file based TM or a number of file based TMs in the TM View. Usage: SDLTradosStudio.exe /openFileTm <file tm1> [<file tm2> ...] Arguments: /openFileTm The full file path of one or more TMs to open. Task: Open Package Description: Opens a package in the Package View. Usage: SDLTradosStudio.exe /openPackage <package> Arguments: /openPackage The full file path of the package to open. Task: Open Project Description: Opens a project in the Projects View. Usage: SDLTradosStudio.exe /openProject <project> Arguments: /openProject The full file path of a Project to open. Task: Open Language Cloud Task Description: Opens a Language Cloud Task in Studio Usage: SDLTradosStudio.exe /openLCTask <sdlproject.lctask.languagecloud.sdl.com/ Arguments: /openLCTask The URI of the Language Cloud Task to open Task: Open Server Project Description: Opens a server project in the Projects View. Usage: SDLTradosStudio.exe /openServerProject <project URI> Arguments: /openServerProject The URI of a Server Project to open.