Group Main was not found when calling Dependencies.Remove for last dependency

Description

Programmatically removing the last NuGet package from a paket.dependencies file, using Dependencies.Remove, throws an 'Group Main was not found' exception.

Paket version: 3.21.4

Repro steps

Create a paket.dependencies file containing a single NuGet package:

source https://www.nuget.org/api/v2
nuget NUnit
Install the NUnit NuGet package using paket install

3, Then programatically remove the NUnit NuGet package using code similar to the following C# code:

Dependencies
    .Locate (dependenciesFileName)
    .Remove (packageId);

Expected behavior

The NuGet package is removed from the paket.dependencies file without any exception.

Actual behavior

The NuGet package is removed from the paket.dependencies file but an exception is thrown.

Removing NUnit from d:\temp\test\paket.dependencies (group Main)
Dependencies files saved to d:\temp\test\paket.dependencies
Group Main was not found in d:\temp\test\paket.dependencies.

System.Exception: Group Main was not found in d:\temp\test\paket.dependencies.
   at <StartupCode$Paket-Core>.$DependenciesFile.GetGroup@160-3.Invoke(String message)
   at Paket.UpdateProcess.preferredVersions@116-1.Invoke(Tuple`2 tupledArg)
   at Microsoft.FSharp.Collections.MapTreeModule.mapiOpt[a,b,c](FSharpFunc`3 f, MapTree`2 m)
   at Microsoft.FSharp.Collections.FSharpMap`2.Map[b](FSharpFunc`2 f)
   at Microsoft.FSharp.Collections.MapModule.Map[TKey,T,TResult](FSharpFunc`2 mapping, FSharpMap`2 table)
   at Paket.UpdateProcess.selectiveUpdate(Boolean force, FSharpFunc`2 getSha1, FSharpFunc`2 getSortedVersionsF, FSharpFunc`2 getPackageDetailsF, LockFile lockFile, DependenciesFile dependenciesFile, UpdateMode updateMode, SemVerUpdateMode semVerUpdateMode)
   at Paket.UpdateProcess.SelectiveUpdate(DependenciesFile dependenciesFile, UpdateMode updateMode, SemVerUpdateMode semVerUpdateMode, Boolean force)
   at Paket.RemoveProcess.remove(FSharpFunc`2 removeFromProjects, String dependenciesFileName, GroupName groupName, PackageName package, Boolean force, Boolean installAfter)
   at Paket.RemoveProcess.Remove(String dependenciesFileName, FSharpOption`1 groupName, PackageName packageName, Boolean force, Boolean interactive, Boolean installAfter)
   at <StartupCode$Paket-Core>.$PublicAPI.Remove@444-9.Invoke(Unit unitVar0)
   at Paket.Utils.RunInLockedAccessMode[a](String rootFolder, FSharpFunc`2 action)
   at Paket.Dependencies.Remove(FSharpOption`1 groupName, String package, Boolean force, Boolean interactive, Boolean installAfter)
   at Paket.Dependencies.Remove(FSharpOption`1 groupName, String package)

Known workarounds

If the paket.dependencies file has two NuGet packages (e.g. NUnit and jQuery) then removing the NUnit package works without any exception being thrown.

Removing NUnit from d:\temp\test\paket.dependencies (group Main)
Dependencies files saved to d:\temp\test\paket.dependencies
Resolving packages for group Main:
 - jQuery 3.1.1
Locked version resolution written to d:\temp\test\paket.lock
Garbage collecting NUnit

I get the same behaviour if I try to remove the last NuGet dependency using paket.exe remove nuget nunit from the command line:

paket.exe remove nuget nunit --verbose
Paket version 3.21.4.0
found: D:\temp\test\paket.dependencies
Parsing D:\temp\test\paket.dependencies
Removing nunit from D:\temp\test\paket.dependencies (group Main)
Dependencies files saved to D:\temp\test\paket.dependencies
Paket failed with:
        Group Main was not found in D:\temp\test\paket.dependencies.
StackTrace:
     at <StartupCode$Paket-Core>.$DependenciesFile.GetGroup@160-3.Invoke(Stringmessage)
   at Paket.UpdateProcess.preferredVersions@116-1.Invoke(Tuple`2 tupledArg)
   at Microsoft.FSharp.Collections.MapTreeModule.mapiOpt[a,b,c](FSharpFunc`3 f,MapTree`2 m)
   at Microsoft.FSharp.Collections.FSharpMap`2.Map[b](FSharpFunc`2 f)
   at Paket.UpdateProcess.selectiveUpdate(Boolean force, FSharpFunc`2 getSha1, FSharpFunc`2 getSortedVersionsF, FSharpFunc`2 getPackageDetailsF, LockFile lockFile, DependenciesFile dependenciesFile, UpdateMode updateMode, SemVerUpdateMode semVerUpdateMode)
   at Paket.UpdateProcess.SelectiveUpdate(DependenciesFile dependenciesFile, UpdateMode updateMode, SemVerUpdateMode semVerUpdateMode, Boolean force)
   at Paket.RemoveProcess.remove(FSharpFunc`2 removeFromProjects, String dependenciesFileName, GroupName groupName, PackageName package, Boolean force, BooleaninstallAfter)
   at <StartupCode$Paket-Core>.$PublicAPI.Remove@444-9.Invoke(Unit unitVar0)
   at Paket.Utils.RunInLockedAccessMode[a](String rootFolder, FSharpFunc`2 action)
   at Paket.Program.main@395-12.Invoke(ParseResults`1 results)
   at Paket.Program.processWithValidation[T](Boolean silent, FSharpFunc`2 validateF, FSharpFunc`2 commandF, ParseResults`1 result)
   at Paket.Program.main$cont@380(ParseResults`1 results, Boolean silent, Unit unitVar)
   at Paket.Program.main()

Refresh UI and files after failing to remove last NuGet package

Should be fixed in latest version. Can you please retry?

I am still seeing the same error with Paket 3.25.2.0

paket.exe remove nuget nunit --verbose
Paket version 3.25.2.0
found: D:\temp\test\paket.dependencies
Removing Package nunit from D:\temp\test\paket.references
References file saved to D:\temp\test\paket.references
Parsing D:\temp\test\paket.dependencies
Removing nunit from D:\temp\test\paket.dependencies
(group Main)
Dependencies files saved to D:\temp\test\paket.dependencies
Paket failed with:
        Group Main was not found in D:\temp\test\paket.dependencies.
StackTrace:
     at <StartupCode$Paket-Core>.$DependenciesFile.GetGroup@160-3.Invoke(Stringmessage)
   at Paket.UpdateProcess.preferredVersions@116-1.Invoke(Tuple`2 tupledArg)
   at Microsoft.FSharp.Collections.MapTreeModule.mapiOpt[a,b,c](FSharpFunc`3 f,MapTree`2 m)
   at Microsoft.FSharp.Collections.FSharpMap`2.Map[b](FSharpFunc`2 f)
   at Paket.UpdateProcess.selectiveUpdate(Boolean force, FSharpFunc`2 getSha1, FSharpFunc`2 getSortedVersionsF, FSharpFunc`2 getPackageDetailsF, LockFile lockFile, DependenciesFile dependenciesFile, UpdateMode updateMode, SemVerUpdateMode semVerUpdateMode)
   at Paket.UpdateProcess.SelectiveUpdate(DependenciesFile dependenciesFile, UpdateMode updateMode, SemVerUpdateMode semVerUpdateMode, Boolean force)
   at Paket.RemoveProcess.remove(FSharpFunc`2 removeFromProjects, String dependenciesFileName, GroupName groupName, PackageName package, Boolean force, BooleaninstallAfter)
   at <StartupCode$Paket-Core>.$PublicAPI.Remove@454-9.Invoke(Unit unitVar0)
   at Paket.Utils.RunInLockedAccessMode[a](String rootFolder, FSharpFunc`2 action)
   at Paket.Program.main@397-12.Invoke(ParseResults`1 results)
   at Paket.Program.processWithValidation[T](Boolean silent, FSharpFunc`2 validateF, FSharpFunc`2 commandF, ParseResults`1 result)
   at Paket.Program.main$cont@382(ParseResults`1 results, Boolean silent, Boolean fromBootstrapper, Unit unitVar)
   at Paket.Program.main()

Shit thought another thing fixed it as well. Will take another look next
week

Am 29.10.2016 14:46 schrieb "Matt Ward" notifications@github.com:

I am still seeing the same error with Paket 3.25.2.0

paket.exe remove nuget nunit --verbose
Paket version 3.25.2.0
found: D:\temp\test\paket.dependencies
Removing Package nunit from D:\temp\test\paket.references
References file saved to D:\temp\test\paket.references
Parsing D:\temp\test\paket.dependencies
Removing nunit from D:\temp\test\paket.dependencies
(group Main)
Dependencies files saved to D:\temp\test\paket.dependencies
Paket failed with:
Group Main was not found in D:\temp\test\paket.dependencies.
StackTrace:
at <StartupCode$Paket-Core>.$DependenciesFile.GetGroup@160-3.Invoke(Stringmessage)
at Paket.UpdateProcess.preferredVersions@116-1.Invoke(Tuple2 tupledArg) at Microsoft.FSharp.Collections.MapTreeModule.mapiOpt[a,b,c](FSharpFunc3 f,MapTree2 m) at Microsoft.FSharp.Collections.FSharpMap2.Map[b](FSharpFunc2 f) at Paket.UpdateProcess.selectiveUpdate(Boolean force, FSharpFunc2 getSha1, FSharpFunc2 getSortedVersionsF, FSharpFunc2 getPackageDetailsF, LockFile lockFile, DependenciesFile dependenciesFile, UpdateMode updateMode, SemVerUpdateMode semVerUpdateMode)
at Paket.UpdateProcess.SelectiveUpdate(DependenciesFile dependenciesFile, UpdateMode updateMode, SemVerUpdateMode semVerUpdateMode, Boolean force)
at Paket.RemoveProcess.remove(FSharpFunc2 removeFromProjects, String dependenciesFileName, GroupName groupName, PackageName package, Boolean force, BooleaninstallAfter) at <StartupCode$Paket-Core>.$PublicAPI.Remove@454-9.Invoke(Unit unitVar0) at Paket.Utils.RunInLockedAccessMode[a](String rootFolder, FSharpFunc2 action)
at Paket.Program.main@397-12.Invoke(ParseResults1 results) at Paket.Program.processWithValidation[T](Boolean silent, FSharpFunc2 validateF, FSharpFunc2 commandF, ParseResults1 result)
at Paket.Program.main$cont@382(ParseResults`1 results, Boolean silent, Boolean fromBootstrapper, Unit unitVar)
at Paket.Program.main()

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Do not remove main group - fixes #1950

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Group Main was not found when calling Dependencies.Remove for last dependency #1950

Description

Repro steps

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Actual behavior

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Group Main was not found when calling Dependencies.Remove for last dependency #1950

Description

Description

Repro steps

Expected behavior

Actual behavior

Known workarounds

Activity

mrward commented on Oct 9, 2016

forki commented on Oct 29, 2016

mrward commented on Oct 29, 2016

forki commented on Oct 29, 2016

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