Scenario:
You created a SSIS package. The package uses Oracle data sources. Then you can no longer open the package in SSDT/Visual Studio. The error message is “Value does not fall within the expected range” which isn’t quite helpful.
(Possible) Solution:
You may need to install the Microsoft Connectors v4.0 for Oracle by Attunity: https://www.microsoft.com/en-us/download/details.aspx?id=52950. After the installation, your SSDT should be able to open the SSIS package again.
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