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Cannot Access being used by another process #684

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opened 2026-01-29 16:45:56 +00:00 by claunia · 2 comments
claunia commented 2026-01-29 16:45:56 +00:00
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Originally created by @raizpvp on GitHub (Aug 2, 2021).

Originally assigned to: @GregorBiswanger on GitHub.

  • Version: 13.5.1.0

  • Target: .Net Core 5.0 & Node 15.10.0

  • Problem: I have created an empty ASP.Net project. Performed all steps as described to install Electron.NET and include it in the project. Now when I enter "electronize start" I get this error:

  • Error:
    C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: Unerwarteter Fehler bei der GenerateBundle-Aufgabe. [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj]
    C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: System.IO.IOException: The process cannot access the file 'C:\dev\HelloElectron\HelloElectron\obj\Host\bin\HelloElectron.exe' because it is being used by another process. [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj]
    C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at System.IO.FileSystem.CopyFile(String sourceFullPath, String destFullPath, Boolean overwrite) [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj]
    C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at System.IO.File.Copy(String sourceFileName, String destFileName, Boolean overwrite) [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj]
    C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.NET.HostModel.AppHost.BinaryUtils.CopyFile(String sourcePath, String destinationPath) [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj]
    C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.NET.HostModel.Bundle.Bundler.GenerateBundle(IReadOnlyList`1 fileSpecs) [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj]
    C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.NET.Build.Tasks.GenerateBundle.ExecuteCore() [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj]
    C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.NET.Build.Tasks.TaskBase.Execute() [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj]
    C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj]
    C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(ITaskExecutionHost taskExecutionHost, TaskLoggingContext taskLoggingContext, TaskHost taskHost, ItemBucket bucket, TaskExecutionMode howToExecuteTask) [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj]

Steps to Reproduce:
Follow the install instruction.

Originally created by @raizpvp on GitHub (Aug 2, 2021). Originally assigned to: @GregorBiswanger on GitHub. * **Version**: 13.5.1.0 <!-- Which version of .NET Core and Node.js are you using (if applicable)? --> <!-- What target are you building for? --> * **Target**: .Net Core 5.0 & Node 15.10.0 * **Problem**: I have created an empty ASP.Net project. Performed all steps as described to install Electron.NET and include it in the project. Now when I enter "electronize start" I get this error: * **Error**: C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: Unerwarteter Fehler bei der GenerateBundle-Aufgabe. [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj] C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: System.IO.IOException: The process cannot access the file 'C:\dev\HelloElectron\HelloElectron\obj\Host\bin\HelloElectron.exe' because it is being used by another process. [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj] C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at System.IO.FileSystem.CopyFile(String sourceFullPath, String destFullPath, Boolean overwrite) [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj] C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at System.IO.File.Copy(String sourceFileName, String destFileName, Boolean overwrite) [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj] C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.NET.HostModel.AppHost.BinaryUtils.CopyFile(String sourcePath, String destinationPath) [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj] C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.NET.HostModel.Bundle.Bundler.GenerateBundle(IReadOnlyList`1 fileSpecs) [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj] C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.NET.Build.Tasks.GenerateBundle.ExecuteCore() [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj] C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.NET.Build.Tasks.TaskBase.Execute() [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj] C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj] C:\Program Files\dotnet\sdk\5.0.302\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Publish.targets(1017,5): error MSB4018: at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(ITaskExecutionHost taskExecutionHost, TaskLoggingContext taskLoggingContext, TaskHost taskHost, ItemBucket bucket, TaskExecutionMode howToExecuteTask) [C:\dev\HelloElectron\HelloElectron\HelloElectron.csproj] Steps to Reproduce: Follow the install instruction.
claunia added the bug label 2026-01-29 16:45:56 +00:00
claunia commented 2026-01-29 16:45:57 +00:00
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@GregorBiswanger commented on GitHub (Aug 2, 2021):

I created a new .NET 5 project and followed the setup steps. There's no problem.

Try deleting the obj\Host-folder and try again. If necessary, try a project again in a different directory?

@GregorBiswanger commented on GitHub (Aug 2, 2021): I created a new .NET 5 project and followed the setup steps. There's no problem. Try deleting the obj\Host\-folder and try again. If necessary, try a project again in a different directory?
claunia commented 2026-01-29 16:45:57 +00:00
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@PeterKnealeCMRI commented on GitHub (Feb 29, 2024):

I get the same, .net 8 project. It runs once but after that the files remain locked and I cannot rebuild or rerun the application.
Cant remove the files either

$ rm -rf obj/
rm: cannot remove 'obj/Host/bin': Device or resource busy
rm: cannot remove 'obj/Host/node_modules/.bin': Device or resource busy
rm: cannot remove 'obj/Host/node_modules/electron/dist/icudtl.dat': Device or resource busy
rm: cannot remove 'obj/Host/node_modules/electron/dist/resources/default_app.asar': Device or resource busy
rm: cannot remove 'obj/Host/node_modules/electron/dist/v8_context_snapshot.bin': Device or resource busy
@PeterKnealeCMRI commented on GitHub (Feb 29, 2024): I get the same, .net 8 project. It runs once but after that the files remain locked and I cannot rebuild or rerun the application. Cant remove the files either ``` $ rm -rf obj/ rm: cannot remove 'obj/Host/bin': Device or resource busy rm: cannot remove 'obj/Host/node_modules/.bin': Device or resource busy rm: cannot remove 'obj/Host/node_modules/electron/dist/icudtl.dat': Device or resource busy rm: cannot remove 'obj/Host/node_modules/electron/dist/resources/default_app.asar': Device or resource busy rm: cannot remove 'obj/Host/node_modules/electron/dist/v8_context_snapshot.bin': Device or resource busy ```
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