{"id":30899,"date":"2025-01-20T09:52:50","date_gmt":"2025-01-20T09:52:50","guid":{"rendered":"https:\/\/kb.sambapos.com\/?p=30899"},"modified":"2025-01-20T12:00:07","modified_gmt":"2025-01-20T12:00:07","slug":"11-5-how-to-resolve-invalid-class-error","status":"publish","type":"post","link":"https:\/\/kb.sambapos.com\/en\/11-5-how-to-resolve-invalid-class-error\/","title":{"rendered":"11.5. How to Resolve Invalid Class Error?"},"content":{"rendered":"

In this document it will be explained how to resolve the Invalid Class Error.<\/span><\/span><\/p>\n

You can try to resolve the Invalid Class Error with 4 different methods.<\/span><\/span><\/p>\n

 <\/p>\n

Method 1:<\/strong><\/h3>\n

This problem may be caused by the Windows Management Instrumentation (WMI) service not being started, being corrupted or disabled.<\/p>\n

To check if the WMI service is started;<\/p>\n

Enter Windows Start > Services > Services Application > Windows Management Instrumentation service.<\/p>\n

If the service is stopped, right click on the service and start it. Then, you can try to start SambaPOS.<\/p>\n

\"\"<\/p>\n

 <\/p>\n

 <\/p>\n

Method 2:<\/strong><\/h3>\n

If the services are already started, the problem may be caused by a corrupted Windows Management Instrumentation (WMI) service.<\/p>\n

To test this, start System Information and check if the message Unable to Collect Information appears.<\/p>\n

If the message appears, you will need to repair the WMI services.<\/p>\n

– First, right-click on the WMI service and stop it by doing the reverse of Step 1.<\/p>\n

– Then, rename the Repository folder located in C:\\Windows\\system32\\wbem\\repository to repository_old
\nThis will back up the old file and create a new one.<\/p>\n

– Restart the WMI service and check if System Information is working properly. Then you can try starting SambaPOS.<\/p>\n

\"\"<\/p>\n

 <\/p>\n

 <\/p>\n

Method 3:<\/strong><\/h3>\n

If the first two steps do not work:<\/p>\n

-Type %SystemRoot%\\System32\\Wbem into Windows Explorer.<\/p>\n

-Reset the WinMgmt.CFG file in the folder by deleting or renaming it.<\/p>\n

 <\/p>\n

\"\"<\/p>\n

 <\/p>\n

-In the System Configuration Utility (Start > Run, type MSCONFIG).<\/p>\n

In the Services tab, check the Windows Management Instrumentation\/WMI services to make sure they are running.<\/p>\n

\"\"<\/p>\n

-Restart the computer to recreate the CFG.<\/span><\/span> Then try to start SambaPOS.<\/span><\/span><\/p>\n

 <\/p>\n

 <\/p>\n

Method 4:<\/strong><\/h3>\n

-If the problem persists after the first 3 steps, the problem may be in the Windows Management Instrumentation files.<\/p>\n

We are using the CMD command prompt to fix the files.<\/p>\n

-Open the CMD Prompt as Administrator and copy and paste to the folder: cd C:\\windows\\system32\\wbem<\/p>\n

-Copy the following lines in the same way and paste them to the window and wait for the system to finish. It may take 1-2 minutes.<\/p>\n

regsvr32 \/s %systemroot%\\system32\\scecli.dll
\nregsvr32 \/s %systemroot%\\system32\\userenv.dll
\nregsvr32 cimwin32.dll
\nmofcomp cimwin32.mof
\nmofcomp cimwin32.mfl
\nmofcomp rsop.mof
\nmofcomp rsop.mfl
\nfor \/f %s in (\u2018dir \/b \/s *.dll\u2019) do regsvr32 \/s %s
\nfor \/f %s in (\u2018dir \/b *.mof\u2019) do mofcomp %s
\nfor \/f %s in (\u2018dir \/b *.mfl\u2019) do mofcomp %s
\nregsvr32 wmisvc.dll
\nwmiprvse \/regserver<\/p>\n

\"\"<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

In this document it will be explained how to resolve the Invalid Class Error. You can try to resolve the Invalid Class Error with 4 different methods.   Method 1: This problem may be caused by the Windows Management Instrumentation (WMI) service not being started, being corrupted or disabled. To check if the WMI service […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[],"class_list":["post-30899","post","type-post","status-publish","format-standard","hentry","category-11-short-brief"],"_links":{"self":[{"href":"https:\/\/kb.sambapos.com\/en\/wp-json\/wp\/v2\/posts\/30899","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kb.sambapos.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kb.sambapos.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kb.sambapos.com\/en\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/kb.sambapos.com\/en\/wp-json\/wp\/v2\/comments?post=30899"}],"version-history":[{"count":2,"href":"https:\/\/kb.sambapos.com\/en\/wp-json\/wp\/v2\/posts\/30899\/revisions"}],"predecessor-version":[{"id":30914,"href":"https:\/\/kb.sambapos.com\/en\/wp-json\/wp\/v2\/posts\/30899\/revisions\/30914"}],"wp:attachment":[{"href":"https:\/\/kb.sambapos.com\/en\/wp-json\/wp\/v2\/media?parent=30899"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kb.sambapos.com\/en\/wp-json\/wp\/v2\/categories?post=30899"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kb.sambapos.com\/en\/wp-json\/wp\/v2\/tags?post=30899"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}