It used to work well, and all of a sudden, I got these errors: unknown
server
tag: aspcriptMagager, unknown server tag: myprefix:MyControl.

However, the page shows properly in design mode for the MyControl, it also
work well in running mode. But due to the error, VS stopped updating the
designer.cs files. Then I tried to delete the designer.cs files and try to
use "Convert to Web Application" command to re-generate the designer file,
it failed with some varing messages.

So I decided to make a log of vs studio 2005, the log shows some warnnings,
here:
group1 for gax:
<entry>
<record>16</record>
<time>2008/02/04 16:09:08.961</time>
<type>Information</type>
<source>Microsoft Visual Studio</source>
<description>Entering function
CVsPackageInfo::HrInstantiatePackage</description>
<guid>{77D93A80-73FC-40F8-87DB-ACD3482964B2}</guid>
</entry>
<entry>
<record>17</record>
<time>2008/02/04 16:09:08.991</time>
<type>Warning</type>
<source>Microsoft Visual Studio Appid Stub</source>
<description>CheckPackageSignature failed; invalid Package Load
Key</description>
<guid>{77D93A80-73FC-40F8-87DB-ACD3482964B2}</guid>
</entry>
<entry>
<record>18</record>
<time>2008/02/04 16:09:09.081</time>
<type>Information</type>
<source>Microsoft Visual Studio</source>
<description>Begin package load
[Microsoft.Practices.RecipeFramework.VisualStudio.RecipeManagerPackage,
Microsoft.Practices.RecipeFramework.VisualStudio, Version=1.0.60429.0,
Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]</description>
<guid>{77D93A80-73FC-40F8-87DB-ACD3482964B2}</guid>
</entry>


and group 2 for web application project:
<entry>
<record>58</record>
<time>2008/02/04 16:09:19.987</time>
<type>Information</type>
<source>Microsoft Visual Studio</source>
<description>Entering function
CVsPackageInfo::HrInstantiatePackage</description>
<guid>{349C5850-65DF-11DA-9384-00065B846F21}</guid>
</entry>
<entry>
<record>59</record>
<time>2008/02/04 16:09:20.027</time>
<type>Warning</type>
<source>Microsoft Visual Studio Appid Stub</source>
<description>CheckPackageSignature failed; invalid Package Load
Key</description>
<guid>{349C5850-65DF-11DA-9384-00065B846F21}</guid>
</entry>
<entry>
<record>60</record>
<time>2008/02/04 16:09:20.067</time>
<type>Warning</type>
<source>Microsoft Visual Studio Appid Stub</source>
<description>CheckPackageSignature failed; invalid Package Load
Key</description>
<guid>{349C5850-65DF-11DA-9384-00065B846F21}</guid>
</entry>
<entry>
<record>61</record>
<time>2008/02/04 16:09:20.107</time>
<type>Information</type>
<source>Microsoft Visual Studio</source>
<description>Begin package load
[Microsoft.VisualStudio.Web.Application.WAPackage,
Microsoft.VisualStudio.Web.Application, Version=8.0.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a]</description>
<guid>{349C5850-65DF-11DA-9384-00065B846F21}</guid>
</entry>
<entry>
<record>62</record>
<time>2008/02/04 16:09:20.147</time>
<type>Information</type>
<source>Microsoft Visual Studio</source>
<description>End package load
[Microsoft.VisualStudio.Web.Application.WAPackage,
Microsoft.VisualStudio.Web.Application, Version=8.0.0.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a]</description>
<guid>{349C5850-65DF-11DA-9384-00065B846F21}</guid>
</entry>



and group 3 also for web application project:
<entry>
<record>93</record>
<time>2008/02/04 16:09:24.053</time>
<type>Information</type>
<source>Microsoft Visual Studio</source>
<description>Entering function
CVsPackageInfo::HrInstantiatePackage</description>
<guid>{DC7F691A-91FC-4F7B-923E-FE829C3A18DC}</guid>
</entry>
<entry>
<record>94</record>
<time>2008/02/04 16:09:24.133</time>
<type>Warning</type>
<source>Microsoft Visual Studio Appid Stub</source>
<description>CheckPackageSignature failed; invalid Package Load
Key</description>
<guid>{DC7F691A-91FC-4F7B-923E-FE829C3A18DC}</guid>
</entry>
<entry>
<record>95</record>
<time>2008/02/04 16:09:24.183</time>
<type>Warning</type>
<source>Microsoft Visual Studio Appid Stub</source>
<description>CheckPackageSignature failed; invalid Package Load
Key</description>
<guid>{DC7F691A-91FC-4F7B-923E-FE829C3A18DC}</guid>
</entry>
<entry>
<record>96</record>
<time>2008/02/04 16:09:24.353</time>
<type>Information</type>
<source>Microsoft Visual Studio</source>
<description>Begin package load [Visual Web Developer Web Application
Upgrade Package]</description>
<guid>{DC7F691A-91FC-4F7B-923E-FE829C3A18DC}</guid>
</entry>
<entry>
<record>97</record>
<time>2008/02/04 16:09:24.474</time>
<type>Information</type>
<source>Microsoft Visual Studio</source>
<description>Loading UI library</description>
<guid>{DC7F691A-91FC-4F7B-923E-FE829C3A18DC}</guid>
<path>D:\vsnet8\Common7\Packages\*\webappupgradeui.dll</path>
</entry>
<entry>
<record>98</record>
<time>2008/02/04 16:09:24.554</time>
<type>Information</type>
<source>Microsoft Visual Studio</source>
<description>End package load [Visual Web Developer Web Application
Upgrade Package]</description>
<guid>{DC7F691A-91FC-4F7B-923E-FE829C3A18DC}</guid>
</entry>


So I decided to reinstallVS 2005service pack 1 and gax and GAT (ditially signedonOctober 18, 2006 ) , it took me
hours to reinstall it, and finally it turned out nothing is solved. The
problem persists.


Thanks for any help

As long as you aren't seeing a Package Load Failure dialog, you can safely ignore these logs. The CheckPackageSignature function checks for a valid package load key in a number of locations, and against a number of different VS versions. And we log all the failures, regardless if it's ultimately validated. If no validation occurs, you should see a modal error dialog pop up with a Package Load Failure message. But if you're not seeing this, then you can safely ignore the logs.

That doesn't exactly address your originalproblem though. It sounds a bit specific to ASP .NET and the webform designer. You might want to try posting this question (with more details on what the .aspx file looks like, to one of the asp .net forums at http://forums.asp.net/.

Sincerely,

As long as you aren't seeing a Package Load Failure dialog, you can safely ignore these logs. The CheckPackageSignature function checks for a valid package load key in a number of locations, and against a number of different VS versions. And we log all the failures, regardless if it's ultimately validated. If no validation occurs, you should see a modal error dialog pop up with a Package Load Failure message. But if you're not seeing this, then you can safely ignore the logs.

That doesn't exactly address your originalproblem though. It sounds a bit specific to ASP .NET and the webform designer. You might want to try posting this question (with more details on what the .aspx file looks like, to one of the asp .net forums at http://forums.asp.net/.

Sincerely,

ok, thanks for the infomation.