Dennis Traub Dennis Traub - 1 year ago 150
Groovy Question

Groovy Shell warning "Could not open/create prefs root node ..."

I tried to open the Groovy Shell (

) on Windows 8 and got the following output:

java.util.prefs.WindowsPreferences <init>
WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs
at root 0x80000002. Windows RegCreateKeyEx(...) returned error code 5.

After printing the above message the shell started as expected.

Answer Source

Dennis answer is correct. However I would like to explain the solution in a bit more detailled way (for Windows User):

  1. Go into your Start Menu and type regedit into the search field.
  2. Navigate to path HKEY_LOCAL_MACHINE\Software\JavaSoft (Windows 10 seems to now have this here: HKEY_LOCAL_MACHINE\Software\WOW6432Node\JavaSoft)
  3. Right click on the JavaSoft folder and click on New -> Key
  4. Name the new Key Prefs and everything should work.

Alternatively, save and execute a *.reg file with the following content:

Windows Registry Editor Version 5.00
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