Hi@AdarshRajendran
This is strange, because I tried to install several versions and I didn't encounter any problems.
According to your error message, it keeps showing that some dependent packages cannot be installed. This is could be likely related to your network.
My suggestion:
1. Reinstall S32 Design Studio for ARM 2018
2. Try some new networks and then try to install the IAR plug-in agian
If it still doesn't work, you can try to install S32 Design Studio for ARM v2.2, and then try to install the IAR plug-in
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