The following issue could happen in IAR Embedded Workbench for STM8 version 1.31 and 1.40. From version 1.41 the problem should not occur.
When trying to debug, the file...
ST-LINK and STice Support Package.msi
...is reported missing.
Reinstall IAR Embedded Workbench for STM8.
Near the end of the installation the package can be found in a temporary directory. On a windows 7 / 64 machine it would be something similar to
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