Originally posted by Ta1Mz
I connect Target Manager to PS3 but when I run the debugger it says:
Error initialising target communications (164)
Failed to locate Target Manager window (a4)
I have version 310.3.0 Debugger and 4.20 of Target Manager so I have no idea what it is.
I haven't seen this thread or you have been helped sooner

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On topic: I would suggest REMOVING them both. Reinstall the 4.20.x version and after it's installed RESTART COMPUTER so everything can take changes that it needs.
let me know what happens after you've done that