Zip exception when updating

Technical Support
,
1

OS Name/Version: Windows 10 pro

Product Name/Version: (Always use the full version number - not ‘Latest’)
AMP 2.4.3.2

Problem Description:
When attempting to make a new instance I get “The core archive failed to download or unpack” With the following log from the console.

ZipException
[0] (ZipException) : Could not read C:\AMPDatastore\Instances\AMPCache-Mainline-2440.zip as a zip file
at Ionic.Zip.ZipFile..ctor(String fileName) at InstanceManagerPlugin.LocalInstanceManager.<UnpackArchive>() at InstanceManagerPlugin.LocalInstanceManager.<DownloadAndUnpack>()
ZipException
[1] (ZipException) : Cannot read that as a ZipFile
at Ionic.Zip.ZipFile.ReadIntoInstance(ZipFile zf) at Ionic.Zip.ZipFile._InitInstance(String zipFileName, TextWriter statusMessageWriter) at Ionic.Zip.ZipFile..ctor(String fileName)
BadReadException
[2] (BadReadException) : Bad signature (0x4F44213C) at position 0x00000000
at Ionic.Zip.ZipEntry.ReadHeader(ZipEntry ze, Encoding defaultEncoding) at Ionic.Zip.ZipEntry.ReadEntry(ZipContainer zc, Boolean first) at Ionic.Zip.ZipFile.ReadIntoInstance_Orig(ZipFile zf) at Ionic.Zip.ZipFile.ReadIntoInstance(ZipFile zf)
Create Instance Failed: The core archive failed to download or unpack

Steps to reproduce:

  • Step 1
    Start AMP
  • Step 2
    Attempt to create new instance from GUI

Actions taken to resolve so far:
I’ve attempted to update AMP to the latest version through the command line using both Ampinstmgr Upgrade ADS01 and Ampinstmgr --nocache Upgrade ADS01 which both end in

C:\WINDOWS\system32>ampinstmgr --nocache upgrade ADS01
[Info] AMP Instance Manager v2.4.3 built 15/03/2023 09:46
[Info] Release spec: ReleaseNoUpload - built by CUBECODERS/buildbot on CCL-DEV
[Info] Stopping Instance: 'ADS01'
[Info] Stopping instance ADS01...
[Info] Waiting for instance to stop...
[Info] Instance ADS01 has stopped.
[Info] Upgrading instance ADS01
[Info] Skipping cache and downloading fresh copy...
[Info] Downloading AMP from https://cubecoders.com/Downloads/Release/AMP_Latest_Release.zip...

[Info] Complete
[Error] Failed to unpack AMP.
[Error] ZipException
[Error] [0] (ZipException) : Could not read C:\AMPDatastore\Instances\AMPCache-Mainline-2440.zip as a zip file
[Error]    at Ionic.Zip.ZipFile..ctor(String fileName)
   at InstanceManagerPlugin.LocalInstanceManager.<UnpackArchive>()
   at InstanceManagerPlugin.LocalInstanceManager.<DownloadAndUnpack>()
[Error] ZipException
[Error] [1] (ZipException) : Cannot read that as a ZipFile
[Error]    at Ionic.Zip.ZipFile.ReadIntoInstance(ZipFile zf)
   at Ionic.Zip.ZipFile._InitInstance(String zipFileName, TextWriter statusMessageWriter)
   at Ionic.Zip.ZipFile..ctor(String fileName)
[Error] BadReadException
[Error] [2] (BadReadException) :   Bad signature (0x4F44213C) at position  0x00000000
[Error]    at Ionic.Zip.ZipEntry.ReadHeader(ZipEntry ze, Encoding defaultEncoding)
   at Ionic.Zip.ZipEntry.ReadEntry(ZipContainer zc, Boolean first)
   at Ionic.Zip.ZipFile.ReadIntoInstance_Orig(ZipFile zf)
   at Ionic.Zip.ZipFile.ReadIntoInstance(ZipFile zf)
[Info] Upgrade failed

I verified that C:\AMPDatastore\Instances has the following zip files
image

AMP is running as admin and cmd is run as admin.

Unsure what to do next.

2

so you are out of date. you need to go to CubeCoders and download the windows 10/11 .msi to update to 2.4.6.6 and then run cmd ampinstmgr upgradeall

3

Thanks, that was the missing piece. I knew I was out of date but was unaware the update process. The windows .msi followed by an upgrade to my instances did the trick.

4

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.