Error while opening HFM Application "The Parameter is Incorrect"

Question

I have recently installed HFM 11.1.2.1 and created an applicatiion. When I try to open that application, system is giving an error message stating "The Parameter is Incorrect"
Error Reference Number: {DB65561D-1ECC-4227-9361-BB662D71078A};User Name: admin@Native Directory
Num: 0x80070057;Type: 0;DTime: 8/24/2011 5:08:09 PM;Svr: HYPERION;File: CHsxServerImpl.cpp;Line: 2025;Ver: 11.1.2.1.000.3082;
Num: 0x80070057;Type: 0;DTime: 8/24/2011 5:08:15 PM;Svr: HYPERION;File: CHsxServerImpl.cpp;Line: 2361;Ver: 11.1.2.1.000.3082;
Num: 0x80070057;Type: 0;DTime: 8/24/2011 5:08:15 PM;Svr: HYPERION;File: CHsxServerImpl.cpp;Line: 4092;Ver: 11.1.2.1.000.3082;
Num: 0x80070057;Type: 1;DTime: 8/24/2011 5:08:15 PM;Svr: HYPERION;File: CHsxServer.cpp;Line: 1460;Ver: 11.1.2.1.000.3082;DStr: OpenApplication: DEMOAPP;
Num: 0x80070057;Type: 0;DTime: 8/24/2011 5:08:15 PM;Svr: HYPERION;File: CHsxClient.cpp;Line: 2417;Ver: 11.1.2.1.000.3082;
Did I do something wrong in the installation?

Answer 1

After upgrading to version 9.3.3, 11.1.1.3.50 or 11.1.2.1 this error could occur with the below scenario...
The cause was due to a program change in these upgrade version, with how logins work when accessing HFM via workspace. Any login to HFM that does not go through workspace, will inconsistently cause this error.
To resolve this issue in version 11.1.2.1, download and apply Patch 12865428.
Refer : Financial Management Error "The Parameter Is Incorrect" Appears Frequently in HsvEventlog.log After Upgrade to Version 9.3.3, 11.1.1.3.50 or 11.1.2.1 (Doc ID 1290122.1)