Forum Discussion
Unable to Resolve the error when using fabric workload to connect to Fabric for showing react app
npm run start:devGateway
> [email protected] start:devGateway
> node ./devServer/start-devGateway.js
Starting Fabric Dev Gateway...
Executing: powershell.exe -ExecutionPolicy Bypass -File C:\Users\AmballaHemanthkumar\fabric-extensibility-toolkit\scripts\Run\StartDevGateway.ps1
Building Nuget Package ...
Loaded environment variables from C:\Users\AmballaHemanthkumar\fabric-extensibility-toolkit\scripts\Build\..\..\Workload\.env.dev (dev environment)
Using temporary directory: C:\Users\AmballaHemanthkumar\AppData\Local\Temp\Fabric_Manifest_Build_bfa79f0e-4d4a-45cc-82e4-70ecfe695666
Copying template files from C:\Users\AmballaHemanthkumar\fabric-extensibility-toolkit\scripts\Build\..\..\Workload\Manifest to C:\Users\AmballaHemanthkumar\AppData\Local\Temp\Fabric_Manifest_Build_bfa79f0e-4d4a-45cc-82e4-70ecfe695666
Copied 6 asset files (images, etc.) without modification
Configured items from ITEM_NAMES: HelloWorldItem
Moving 2 item configuration files to root directory (from configured items only)...
Moved HelloWorldItem.json to root directory
Moved HelloWorldItem.xml to root directory
Processing 6 files for variable replacement...
Binary files (images, etc.) will be copied without modification.
Replaced {{WORKLOAD_NAME}} with Org.HelloWorldWorkload in HelloWorldItem.xml
Replaced {{WORKLOAD_NAME}} with Org.HelloWorldWorkload in ManifestPackage.nuspec
Replaced {{WORKLOAD_VERSION}} with 1.0.1 in ManifestPackage.nuspec
Replaced {{MANIFEST_FOLDER}} with C:\Users\AmballaHemanthkumar\AppData\Local\Temp\Fabric_Manifest_Build_bfa79f0e-4d4a-45cc-82e4-70ecfe695666 in ManifestPackage.nuspec
Replaced {{FRONTEND_APPID}} with 00000000-0000-0000-0000-000000000000 in WorkloadManifest.xml
Replaced {{WORKLOAD_NAME}} with Org.HelloWorldWorkload in WorkloadManifest.xml
Replaced {{WORKLOAD_VERSION}} with 1.0.1 in WorkloadManifest.xml
Replaced {{FRONTEND_URL}} with http://127.0.0.1:60006 in WorkloadManifest.xml
Using configuration in C:\Users\AmballaHemanthkumar\fabric-extensibility-toolkit\scripts\Build\..\..\build\Manifest\
NuGet Version: 4.0.0.2283
Attempting to build package from 'ManifestPackage.nuspec'.
Id: Org.HelloWorldWorkload
Version: 1.0.1
Authors: author
Description: A NuGet package that holds the manifests for the Org.HelloWorldWorkload workload.
Dependencies: None
Added file '[Content_Types].xml'.
Added file '_rels/.rels'.
Added file 'BE/HelloWorldItem.xml'.
Added file 'BE/WorkloadManifest.xml'.
Added file 'FE/HelloWorldItem.json'.
Added file 'FE/Product.json'.
Added file 'Org.HelloWorldWorkload.nuspec'.
Added file 'package/services/metadata/core-properties/1840b1b692af40e68f9bb43678115ea9.psmdcp'.
Successfully created package 'C:\Users\AmballaHemanthkumar\fabric-extensibility-toolkit\build\Manifest\Org.HelloWorldWorkload.1.0.1.nupkg'.
✅ Created the new ManifestPackage in C:\Users\AmballaHemanthkumar\fabric-extensibility-toolkit\scripts\Build\..\..\build\Manifest\.
Removed NuGet package metadata folder from manifest package.
Cleaning up temporary directory...
DevGateway used: C:\Users\AmballaHemanthkumar\fabric-extensibility-toolkit\scripts\Run\..\..\tools\DevGateway\Microsoft.Fabric.Workload.DevGateway.exe
Configuration xsfile used: C:\Users\AmballaHemanthkumar\fabric-extensibility-toolkit\build\DevGateway\workload-dev-mode.json
Starting DevGateway in interactive mode...
[09/06 16:06:46.257] info: Starting DevGateway...
[09/06 16:06:46.290] info: Starting DevGateway...
[09/06 16:06:53.084] info: Interactive user AAD token received
[09/06 16:06:53.086] info: Registering dev instance...
[09/06 16:07:47.524] fail: Dev instance registration call was not successful, HTTP status code: Forbidden, reason: Forbidden, response: {"requestId":"772ecef8-eff8-4388-9074-96390f590f89","errorCode":"UnknownError","moreDetails":[{"errorCode":"SecurityValidationFailed","message":"Extension package was blocked by malware scanner"}],"message":"Blocked by malware scanner.","isRetriable":false,"relatedResource":{"resourceType":"ExtensionPackage"}}
[09/06 16:07:47.564] info: DevGateway stopped. Stopping application...
Dev Gateway process completed successfully.
4 Replies
Issue title for above:
I have enabled devloper mode and
Workspace admins can develop partner workloadsEnabled for the entire organization
Fabric DevGateway registration fails: Extension package blocked by malware scannerProduct:
Microsoft FabricProblem:
I am developing a Fabric workload using Fabric Extensibility Toolkit / DevGateway.
DevGateway starts successfully and receives interactive user AAD token, but registration fails with Forbidden.Latest error:
HTTP status code: Forbidden
errorCode: UnknownError
moreDetails errorCode: SecurityValidationFailed
message: Extension package was blocked by malware scannerRequest ID:
44ae902b-809a-4d90-b5d8-7195c7ddbc61Workspace:
96441fdc-6968-4ac6-b90c-b9905ae2d718Package:
Org.HelloWorldWorkload.1.0.1.nupkgPackage contents:
Only required Fabric workload manifest XML/JSON files.
No binaries, no EXE, no DLL, no scripts, no node_modules, no images, no nested ZIP files.Package files:
BE/HelloWorldItem.xml
BE/WorkloadManifest.xml
FE/HelloWorldItem.json
FE/Product.json
Org.HelloWorldWorkload.nuspecWhat I already tried:
- Removed image assets
- Removed translations/assets
- Removed external URLs
- Removed NuGet metadata folder
- Changed workload name
- Rebuilt package with new version
- DevGateway authentication works, only package registration fails
v-sgandrathiCommunity Support
Hi Anonymous,
Thank you for sharing the logs.
From the error message:
"SecurityValidationFailed"
"Extension package was blocked by malware scanner"It looks like the Dev Gateway is starting up and authentication is working ("Interactive user AAD token received"), but the failure happens during extension package registration when Fabric tries to upload and validate the workload package.
This usually means the .nupkg extension package was flagged by Fabric's security scanning service and blocked from registration.
Please check:
That you’re using the latest Fabric Extensibility Toolkit and Dev Gateway components.
Whether any custom binaries, scripts, executables, or third-party dependencies have been added to the workload package.
The contents of the generated package (Org.HelloWorldWorkload.1.0.1.nupkg) to make sure it only includes the expected manifest, JSON, XML, and asset files.
If you’re using the default HelloWorld sample and still see this error, it might be a false positive from Fabric’s malware scanner.Can you confirm:
If this is the unmodified HelloWorld sample or a custom workload?
The version of the Fabric Extensibility Toolkit you’re using?
If the issue happens every time you regenerate the package?
If the sample is unchanged and the problem continues, you may want to open a Microsoft support ticket and provide the request ID:Create a Fabric and Power BI Support Ticket - Power BI | Microsoft Learn
Thank you.
- v-sgandrathi
Hi Anonymous,
Just checking in — could you kindly confirm whether the issue has been resolved through the support case you raised?
If so, we’d be grateful if you could share the resolution or any helpful details with the community, as it may assist others facing similar challenges.
Thank you for your time and continued collaboration!