Upgrading vb2008 to vb2019. All forms abort

  • Thread starter Thread starter Douglas Harter
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Douglas Harter

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I have been working on an OLD program in VB2008, and upgrading the code. I know there are problems upgrading to a higher compiler and having the forms not upgrade. I have 25-30 forms. The program now runs, but there is a LOT of untested code. Upgrading to 2019 would make sure everything runs on 2019 once I get the code upgraded. The error I get on the forms when I upgrade is: Could not resolve mscorlib for target framework '.NETFramework,Version=v4.0'. This can happen if the target framework is not installed or if the framework moniker is incorrectly formatted.

Net 4.0 IS there or VB2008 wouldn't run. How can I correct this error? Would changing the .Net version in Properties help? I have tried to get mscorlib but there are many of them & I don't know which I need. I need detailed information, please.

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