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c# - Failed to update database because it is read-only

I have set up my website to use ASP.NET Membership. it all works fine when trying to use it on my development machine but when I put it on the web server and try to log in, I get this error :

"Failed to update database "C:INETPUBWWWROOTAPP_DATAASPNETDB.MDF" because the database is read-only. "
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thanks for the help. I just found a solution. in the App_Data ACL, I had two entries : Network Service and IIS_IUSRS. the Network Service account had full permissions but IIS_IUSRS group had only read access. so, I gave IIS_IUSRS full permissions as well and it worked !

thanks again.


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