I often get this type of error when installing a module:

A critical error has occurred.
size mismatch: 1610;7407 <-> 1610;7525

Retrying the same module again I get:

A critical error has occurred.
Illegal characters in path.

Try again:

A critical error has occurred.
System.Exception: Exception of type 'System.Exception' was thrown. at ICSharpCode.SharpZipLib.Zip.Compression.InflaterDynHeader.Decode(StreamManipulator input) at ICSharpCode.SharpZipLib.Zip.Compression.Inflater.Decode() at ICSharpCode.SharpZipLib.Zip.Compression.Inflater.Inflate(Byte[] buf, Int32 offset, Int32 len) at ICSharpCode.SharpZipLib.Zip.Compression.Streams.InflaterInputStream.Read(Byte[] b, Int32 off, Int32 len)

And again:

A critical error has occurred.
size mismatch: 2295;18631 <-> 2295;18824

and yet again:

A critical error has occurred.
size mismatch: 1572;6193 <-> 566;1195

 

You can see it is impossible to diagnose the cause when the error keeps changing.

Any suggestions?

Hello, i am getting same issue while installing DataSpring's DynamicRegistration module. Same zip is working on my development machine, but not on live installation. I retried downloading module file again but didn't help. Please help... AssemblyVersion: 5.5.1 PortalID: 8 PortalName: UserID: 1 UserName: host ActiveTabID: 18 ActiveTabName: Module Definitions RawURL: /dotnetnuke/Host/Module Definitions/tabid/18/ctl/Install/rtab/18/portalid/8/language/en-US/Default.aspx AbsoluteURL: /DotNetNuke/Default.aspx AbsoluteURLReferrer: http://59.90.32.12/dotnetnuke/Host/Module%20Definitions/tabid/18/ctl/Install/rtab/18/portalid/8/language/en-US/Default.aspx UserAgent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; MS-RTC LM 8; InfoPath.2; .NET4.0C; .NET4.0E) DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider ExceptionGUID: 23419a61-a9e6-4d51-9c46-042232eea6dd InnerException: size mismatch: 251862;884736 <-> 251862;884802 FileName: FileLineNumber: 0 FileColumnNumber: 0 Method: ICSharpCode.SharpZipLib.Zip.ZipInputStream.Read StackTrace: Message: DotNetNuke.Services.Exceptions.PageLoadException: size mismatch: 251862;884736 <-> 251862;884802 ---> ICSharpCode.SharpZipLib.ZipException: size mismatch: 251862;884736 <-> 251862;884802 at ICSharpCode.SharpZipLib.Zip.ZipInputStream.Read(Byte[] b, Int32 off, Int32 len) at DotNetNuke.Services.Installer.Util.StreamToStream(Stream SourceStream, Stream DestStream) in C:\Projects\DNN\iExcel\Library\Services\Installer\Util.vb:line 208 at DotNetNuke.Services.Installer.Util.WriteStream(Stream SourceStream, String DestFileName) in C:\Projects\DNN\iExcel\Library\Services\Installer\Util.vb:line 531 at DotNetNuke.Services.Installer.InstallFile.ReadZip(ZipInputStream unzip, ZipEntry entry) in C:\Projects\DNN\iExcel\Library\Services\Installer\InstallFile.vb:line 445 at DotNetNuke.Services.Installer.InstallFile..ctor(ZipInputStream zip, ZipEntry entry, InstallerInfo info) in C:\Projects\DNN\iExcel\Library\Services\Installer\InstallFile.vb:line 69 at DotNetNuke.Services.Installer.InstallerInfo.ReadZipStream(Stream inputStream, Boolean isEmbeddedZip) in C:\Projects\DNN\iExcel\Library\Services\Installer\InstallerInfo.vb:line 474 at DotNetNuke.Services.Installer.InstallerInfo..ctor(Stream inputStream, String sitePath) in C:\Projects\DNN\iExcel\Library\Services\Installer\InstallerInfo.vb:line 110 at DotNetNuke.Services.Installer.Installer..ctor(Stream inputStream, String physicalSitePath, Boolean loadManifest, Boolean deleteTemp) in C:\Projects\DNN\iExcel\Library\Services\Installer\Installer.vb:line 107 at DotNetNuke.Modules.Admin.Extensions.Install.wizInstall_NextButtonClick(Object sender, WizardNavigationEventArgs e) in F:\WEBFTPROOT\DotNetNuke\DesktopModules\Admin\Extensions\Install.ascx.vb:line 588 at System.Web.UI.WebControls.Wizard.OnNextButtonClick(WizardNavigationEventArgs e) at System.Web.UI.WebControls.Wizard.OnBubbleEvent(Object source, EventArgs e) at System.Web.UI.WebControls.Wizard.WizardChildTable.OnBubbleEvent(Object source, EventArgs args) at System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) at System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e) at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) at System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace --- Source: Server Name: IEXCEL-SERVER