# Install Accelerator Package - "An error occurred during installation" **URL:** \ **Category:** Questions\ **Tags:** litium-8\ **Created:** [August 18, 2021, 1:48pm UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166 "2021-08-18T13:48:07Z")\ **Posts on this page:** 17\ **Page:** 1
**Author:** ![StephenM](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@StephenM](https://forum.litium.com/u/StephenM)\ **Post date:** [August 18, 2021, 1:48pm UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/1 "2021-08-18T13:48:07Z")
Hello! I tried to get Litium 8 up and running on my PC and I have been able to get everything running up until the accelerator deployment where I get the “An error occurred during installation”. The only other details I get are to check the logs. Checking the logs reveals the following error: 2021-08-18 15:42:44.3487 [App:01] [] [ERROR] [] Litium.Accelerator.Administration.Extensions.Controllers.DeploymentController - Error when deploying accelerator. End of Central Directory record could not be found. System.IO.InvalidDataException: End of Central Directory record could not be found. at System.IO.Compression.ZipArchive.ReadEndOfCentralDirectory() at System.IO.Compression.ZipArchive…ctor(Stream stream, ZipArchiveMode mode, Boolean leaveOpen, Encoding entryNameEncoding) at System.IO.Compression.ZipArchive…ctor(Stream stream, ZipArchiveMode mode, Boolean leaveOpen) at Litium.Web.Administration.Runtime.ZipFileProvider…ctor(Stream zipStream, String subPath) at Litium.Accelerator.Administration.Extensions.Deployments.AcceleratorPackage.MapBlobs(Stream containerStream) at Litium.Accelerator.Administration.Extensions.Deployments.AcceleratorPackage.GetStructureInfoAsync() at Litium.Accelerator.Administration.Extensions.Controllers.DeploymentController.ImportPackage(ImportViewModel importForm) Any tips? Or should I just create a bug report? Litium version: 8.0.0-beta-2-2106230912 ---
**Author:** ![ton.nguyen](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/ton.nguyen/32/989_2.png) [@ton.nguyen](https://forum.litium.com/u/ton.nguyen)\ **Post date:** [August 18, 2021, 3:34pm UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/2 "2021-08-18T15:34:41Z")
Does your machine has internet connection when executing the deployment? Please check the firewall configuration to make sure it allows Accelerator to download files from the outside network. ---
**Author:** ![ton.nguyen](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/ton.nguyen/32/989_2.png) [@ton.nguyen](https://forum.litium.com/u/ton.nguyen)\ **Post date:** [August 18, 2021, 3:37pm UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/3 "2021-08-18T15:37:38Z")
Also check if there is any file under %TEMP%\Litium\_accelerator\_deployments ---
**Author:** ![patric.forsgard](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/patric.forsgard/32/10_2.png) [@patric.forsgard](https://forum.litium.com/u/patric.forsgard)\ **Post date:** [August 18, 2021, 7:43pm UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/4 "2021-08-18T19:43:40Z")
If you find the packages in the above folder, could windows extract the files manually into another directory? ---
**Author:** ![StephenM](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@StephenM](https://forum.litium.com/u/StephenM)\ **Post date:** [August 19, 2021, 6:58am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/5 "2021-08-19T06:58:24Z")
The Litium\_accelerator\_deployments contains a sub-folder with 2 files; Accelerator\_B2C.bin (122kb) and Accelerator\_B2C.storage.bin (6876kb). Maybe I can delete these files and force Litium to download them again? ---
**Author:** ![StephenM](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@StephenM](https://forum.litium.com/u/StephenM)\ **Post date:** [August 19, 2021, 7:18am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/6 "2021-08-19T07:18:48Z")
Seems that the issue has something to do with downloading the Accelerator\_B2C.storage.bin. I’ve removed the Litium\_accelerator\_deployments folder, tried re-deploying, and the storage file is larger this time (13040kb), but I still get an error: “Http failure response for [https://localhost:44341/site/administration/extensions/api/deployment/import:](https://localhost:44341/site/administration/extensions/api/deployment/import:) 0 Unknown Error” ---
**Author:** ![StephenM](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@StephenM](https://forum.litium.com/u/StephenM)\ **Post date:** [August 19, 2021, 7:21am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/7 "2021-08-19T07:21:39Z")
Here is logging of the response: ```auto 2021-08-19 09:20:12.2295 [App:01] [] [INFO] [] System.Net.Http.HttpClient.accelerator-deployment.LogicalHandler - End processing HTTP request after 31.9283ms - 200 2021-08-19 09:20:12.2295 [App:01] [] [TRACE] [] System.Net.Http.HttpClient.accelerator-deployment.LogicalHandler - Response Headers: Connection: keep-alive Cache-Control: max-age=300 Content-Security-Policy: default-src 'none' ETag: "dfa702b594c2b057ad80926147b75b85d0d3a9c8b699eec5389e521b675be6bb" X-Content-Type-Options: nosniff X-Frame-Options: DENY X-XSS-Protection: 1; mode=block Via: 1.1 varnish, 1.1 varnish, 1.1 varnish Access-Control-Allow-Origin: * X-Fastly-Request-ID: 42c6b6cea3ed7ddc2820066fd5198ad84dd520d0 Source-Age: 9 Accept-Ranges: bytes Age: 407 Date: Thu, 19 Aug 2021 07:20:12 GMT X-Origin-Host: packages.litium.com X-Origin-Url: /media/LitiumAB/Litium.Accelerator.Deployments/b99c64c/src/Accelerator_B2C.storage.bin X-Served-By: cache-bma1680-BMA, cache-bma1633-BMA, cache-hhn4023-HHN X-Cache: MISS, MISS, HIT X-Cache-Hits: 0, 0, 0 X-Timer: S1629357612.226637,VS0,VE0 Vary: Authorization, Accept-Encoding Content-Length: 589922909 Content-Type: application/octet-stream Last-Modified: Thu, 19 Aug 2021 07:13:15 GMT Expires: Thu, 19 Aug 2021 07:18:25 GMT ``` ---
**Author:** ![patric.forsgard](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/patric.forsgard/32/10_2.png) [@patric.forsgard](https://forum.litium.com/u/patric.forsgard)\ **Post date:** [August 19, 2021, 7:34am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/8 "2021-08-19T07:34:03Z")
Can you manually download the [https://packages.litium.com/deployments/b99c64c/Accelerator\_B2C.storage.bin](https://packages.litium.com/deployments/b99c64c/Accelerator_B2C.storage.bin) (file is about 0.5GB) and put into the above folder, looks like you getting timeouts in the download and then the file will be broken. ---
**Author:** ![StephenM](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@StephenM](https://forum.litium.com/u/StephenM)\ **Post date:** [August 19, 2021, 9:17am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/9 "2021-08-19T09:17:24Z")
Downloaded 👍 and had to do the same for Accelerator\_B2C.blockData.storage.bin and Accelerator\_B2C.pageData.storage.bin (even though these files are small in comparison) Now the deployment fails with the following error in the logs: ```auto 2021-08-19 10:36:14.4262 [App:01] [] [ERROR] [] Litium.Accelerator.Administration.Extensions.Controllers.DeploymentController - Error when deploying accelerator. Validation error for Assortment(SystemId: d5a31287-06c3-4e41-828f-291fbaba9dcc, Id: 3A15B40C-D0BF-4CD4-9737-6B6C7D2546EFdemo), Id: 'Värdet är inte unikt.'. Litium.Validations.ValidationException: Validation error for Assortment(SystemId: d5a31287-06c3-4e41-828f-291fbaba9dcc, Id: 3A15B40C-D0BF-4CD4-9737-6B6C7D2546EFdemo), Id: 'Värdet är inte unikt.'. at Litium.Validations.ValidationServiceExtensions.ThrowExceptionIfError[T](ValidationService service, T entity, ValidationMode validationMode) at Litium.Application.Data.Batching.BatchDataImpl.Execute[T](T entity, ValidationMode validationMode) at Litium.Application.Data.Batching.BatchDataImpl.WrapAndExecute[T](T entity, ValidationMode validationMode) at Litium.Application.Data.Batching.BatchDataImpl.Create[T](T entity) at Litium.Application.Products.AssortmentServiceImpl.Create(Assortment assortment) at Litium.Accelerator.Administration.Extensions.Deployments.AcceleratorPackage.CreateAssortment(StructureInfo structureInfo, String name, String domainName) at Litium.Accelerator.Administration.Extensions.Deployments.AcceleratorPackage.CreatePackageInfo(StructureInfo structureInfo, String name, String domainName) at Litium.Accelerator.Administration.Extensions.Controllers.DeploymentController.ImportPackage(ImportViewModel importForm) ``` So then I restored the database thinking that “currupted” data might have resulted from previous failures. Then I tried again to create “demo” with domain “localhost:5001”, but that still failed. Then I tried to create “demo2” with domain “localhost:5002” and I get a validation error saying that the domain already exists. Then there is an error when I try checking out the domains. All the while no errors are logged. Also something unexpected is that it seems that the application is “starting” on every click. I see the following appear in the logs each time I click something in backoffice: ```auto 2021-08-19 11:13:22.7727 [App:01] [] [INFO] [] Litium.Accelerator.MvcCore.Program - Application starting 2021-08-19 11:13:25.0247 [App:01] [] [DEBUG] [] Microsoft.Extensions.Hosting.Internal.Host - Hosting starting ``` ---
**Author:** ![patric.forsgard](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/patric.forsgard/32/10_2.png) [@patric.forsgard](https://forum.litium.com/u/patric.forsgard)\ **Post date:** [August 19, 2021, 9:57am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/10 "2021-08-19T09:57:11Z")
Are you using Redis in your current installation? Did you in that case also flush the cache to not contain the data from the previous database that you replaced? ---
**Author:** ![StephenM](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@StephenM](https://forum.litium.com/u/StephenM)\ **Post date:** [August 19, 2021, 11:03am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/11 "2021-08-19T11:03:30Z")
No Redis, I figured I could set that up at a later stage. The only thing I’ve done outside of the current L8 install instructions was putting the connection string in a appsettings.Development.json file along with a shared folder. ---
**Author:** ![StephenM](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@StephenM](https://forum.litium.com/u/StephenM)\ **Post date:** [August 20, 2021, 7:43am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/12 "2021-08-20T07:43:01Z")
So, this morning I tried again, but this time I ran the application **with** debugging. The application this time does not reload on each click and the deployment appears to have worked! Running without debugging and the application restarts on each click. I am assuming this is not the correct behavior? ---
**Author:** ![patric.forsgard](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/patric.forsgard/32/10_2.png) [@patric.forsgard](https://forum.litium.com/u/patric.forsgard)\ **Post date:** [August 20, 2021, 8:13am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/13 "2021-08-20T08:13:11Z")
No, the application should not restart on each click, that is something that not are correct there. Are you running inside IIS, IIS Express or as standalone application? ---
**Author:** ![StephenM](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@StephenM](https://forum.litium.com/u/StephenM)\ **Post date:** [August 20, 2021, 8:15am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/14 "2021-08-20T08:15:49Z")
Just running it out-of-the-box with IIS Express at the moment. ---
**Author:** ![patric.forsgard](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.litium.com/patric.forsgard/32/10_2.png) [@patric.forsgard](https://forum.litium.com/u/patric.forsgard)\ **Post date:** [August 20, 2021, 8:18am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/15 "2021-08-20T08:18:07Z")
Can it be something similar to [c# - Why does IIS Express shut down the Application and restart it all the time? - Stack Overflow](https://stackoverflow.com/a/28345943)? ---
**Author:** ![StephenM](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@StephenM](https://forum.litium.com/u/StephenM)\ **Post date:** [August 20, 2021, 9:44am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/16 "2021-08-20T09:44:03Z")
This is not the case. There is not other application running that would modify the contents of the bin folder while running the application. This actually only appears to be an issue when running and deploying the accelerator the first time. If I run the application with the debugger attached then the application does not restart and I can deploy the accelerator without error. After that, I can run the application without debugging and it runs fine. ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex030/uploads/litium/original/1X/12eddac3b8b661de1db86af10ac8151b571e6fb9.png) [@system](https://forum.litium.com/u/system)\ **Post date:** [September 17, 2021, 9:44am UTC](https://forum.litium.com/t/install-accelerator-package-an-error-occurred-during-installation/2166/17 "2021-09-17T09:44:23Z")
Closed on September 17, 2021, 9:44am UTC This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.