[opencms-dev] Error "Duplicate entry 'Guests' for key 2."

[juergen.link at bgs-ag.de]

I installed opencms 5.0 RC2 today using Tomcat  4.0.3, J2SDK 1.4.0-beta3
and MySql 4.0.11.a.gamma under Windows 2000.
The wizard stated "Your system uses components which have been tested to
work properly with OpenCms."
after creation of the db and tables (checked via mysql client).
While importing the workplace, the following error occured:
65:       at com.opencms.boot.CmsSetupThread.run(CmsSetupThread.java:81)
64:       at com.opencms.boot.CmsMain.startSetup(CmsMain.java:117)
63:       at com.opencms.boot.CmsMain.begin(CmsMain.java:159)
62:       at java.lang.reflect.Method.invoke(Method.java:327)
61:       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:28)
60:       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:42)
59:       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
58:       at com.opencms.core.CmsShell.commands(CmsShell.java:168)
57:       at com.opencms.core.CmsShellCommands.<init>(CmsShellCommands.java:65)
56:  java.lang.NullPointerException
55:
54:
53:  >    at com.opencms.boot.CmsSetupThread.run(CmsSetupThread.java:81)
52:
51:  >    at com.opencms.boot.CmsMain.startSetup(CmsMain.java:117)
50:
49:  >    at com.opencms.boot.CmsMain.begin(CmsMain.java:150)
48:
47:  >    at java.lang.Class.newInstance(Class.java:254)
46:
45:  >    at java.lang.Class.newInstance0(Class.java:301)
44:
43:  >    at java.lang.reflect.Constructor.newInstance(Constructor.java:277)
42:
41:  >    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:30)
40:
39:  >    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:42)
38:
37:  >    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
36:
35:  >    at com.opencms.core.CmsShell.<init>(CmsShell.java:105)
34:
33:  >    at com.opencms.core.OpenCms.<init>(OpenCms.java:175)
32:
31:  >    at com.opencms.file.CmsRbManager.init(CmsRbManager.java:86)
30:
29:  >    at com.opencms.file.genericSql.CmsResourceBroker.init(CmsResourceBroker.java:3970)
28:
27:  >    at com.opencms.file.mySql.CmsResourceBroker.createDbAccess(CmsResourceBroker.java:66)
26:
25:  >    at com.opencms.file.mySql.CmsDbAccess.<init>(CmsDbAccess.java:65)
24:
23:  >    at com.opencms.file.genericSql.CmsDbAccess.<init>(CmsDbAccess.java:270)
22:
21:  >    at com.opencms.file.mySql.CmsDbAccess.fillDefaults(CmsDbAccess.java:442)
20:
19:  >    at com.opencms.file.genericSql.CmsDbAccess.createTask(CmsDbAccess.java:1682)
18:
17:  >java.lang.NullPointerException
16:       at com.opencms.boot.CmsSetupThread.run(CmsSetupThread.java:81)
15:       at com.opencms.boot.CmsMain.startSetup(CmsMain.java:117)
14:       at com.opencms.boot.CmsMain.begin(CmsMain.java:150)
13:       at java.lang.Class.newInstance(Class.java:254)
12:       at java.lang.Class.newInstance0(Class.java:301)
11:       at java.lang.reflect.Constructor.newInstance(Constructor.java:277)
10:       at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:30)
9:        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:42)
8:        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
7:        at com.opencms.core.CmsShell.<init>(CmsShell.java:105)
6:        at com.opencms.core.OpenCms.<init>(OpenCms.java:175)
5:        at com.opencms.file.CmsRbManager.init(CmsRbManager.java:98)
4:   [CmsException]: 33 Resourcebroker-init error. Detailed Error: Critical error while loading resourcebroker. . Caught Exception:
>java.lang.NullPointerException<
3:   %%% props: D:\Software\jakarta-tomcat-4.0.3\webapps\opencms\WEB-INF\config/opencms.properties
2:   jarlist
1:   oclib folder: D:\Software\jakarta-tomcat-4.0.3\webapps\opencms\WEB-INF\oclib
0:   Collecting Repositories

I tried to downgrade to 4.7.7, but the effect is identical.
When I try to login to the workplace, the following error is found in the
opencms.log:

<snip>
[13.03.2003 18:12:02] <opencms_pool> [com.opencms.dbpool.CmsPool] mysql: starting connection-guard
[13.03.2003 18:12:02] <opencms_init> [CmsDbAccess] fill default resources
[13.03.2003 18:12:02] <opencms_init> [CmsRbManager] Critical error while loading resourcebroker.
[13.03.2003 18:12:02] <opencms_init> [OpenCms] Critical error while loading resourcebroker.
[13.03.2003 18:12:01] <opencms_info> [CmsClassLoader] Adding repository D:\Software\jakarta-tomcat-4.0.3\webapps\opencms\WEB-INF\oclib\opencms.jar
</snip>

I'm a newbie to OpenCms, but I read the manuals and the mailing archive ;)
 I verified the entry "resourcebroker=mysql" in opencms.properties.

Has anyone some idea?

Thanks in advance, Jürgen