Fake 5.6 cache failure

[SteveGilham]

Description

On second and subsequent builds after clearing the .fake folders from the project

Retrieving assembly list from cache failed, please report a bug: System.Exception: Cache is invalid as 'Microsoft.Win32.Primitives, Version=4.0.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' doesn't exist
   at Microsoft.FSharp.Core.PrintfModule.PrintFormatToStringThenFail@1645.Invoke(String message)
   at Fake.Runtime.FakeRuntime.readFromCache@393-1.Invoke(String line) in D:\a\1\s\src\app\Fake.Runtime\FakeRuntime.fs:line 401
   at Microsoft.FSharp.Collections.Internal.IEnumerator.map@74.DoMoveNext(b& curr)
   at Microsoft.FSharp.Collections.Internal.IEnumerator.MapEnumerator`1.System-Collections-IEnumerator-MoveNext()
   at Microsoft.FSharp.Collections.SeqModule.ToList[T](IEnumerable`1 source)
   at Fake.Runtime.FakeRuntime.getKnownAssemblies@420(FakeConfig config, String cacheDir, Lazy`1 paketDependenciesFile, VerboseLevel logLevel, GroupName groupName, FrameworkIdentifier framework, FileInfo lockFilePath, String assemblyCacheHashFile, String assemblyCacheFile, Lazy`1 lockFile, Lazy`1 cache, Lazy`1 writeIntellisenseTask, Unit unitVar0) in D:\a\1\s\src\app\Fake.Runtime\FakeRuntime.fs:line 427

Repro steps

Please provide the steps required to reproduce the problem

1. Update build script to refer to Fake 5.6 -- simple repro sample here

setup-test.fsx.txt

2. Run it twice

Expected behavior

It just works

Actual behavior

Cache failure message as above, then it just works

Known workarounds

Delete the .fake folder(s) and try again

Related information

• Operating system -- Win X Home
• Branch -- Nuget package 5.6.0
• .NET Runtime, CoreCLR or Mono Version -- .net core Version: 2.1.3-servicing-26724-03
• Indications of severity -- severe enough that you tell me to report it
• Version of FAKE (4.X, 5.X) -- 5.6.0
• (if performance issue) Performance information, links to performance testing scripts -- N/A

[matthid]

Thanks a lot for reporting I think I found the issue

[matthid]

Also I unlisted the 5.6 runner packages (chocolatey, dotnet-fake and fake-cli)

[matthid]

5.6.1 is released and should work

[BlythMeister]

@matthid i'm using 5.6.1 and have the same error on a fresh machine.

Retrieving assembly list from cache failed, please report a bug: System.Exception: Cache is invalid as 'Microsoft.Win32.Primitives, Version=4.0.3.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' doesn't exist
   at Microsoft.FSharp.Core.PrintfModule.PrintFormatToStringThenFail@1645.Invoke(String message)
   at Fake.Runtime.FakeRuntime.readFromCache@393-1.Invoke(String line) in D:\a\1\s\src\app\Fake.Runtime\FakeRuntime.fs:line 401
   at Microsoft.FSharp.Collections.Internal.IEnumerator.map@74.DoMoveNext(b& curr)
   at Microsoft.FSharp.Collections.Internal.IEnumerator.MapEnumerator`1.System-Collections-IEnumerator-MoveNext()
   at Microsoft.FSharp.Collections.SeqModule.ToList[T](IEnumerable`1 source)
   at Fake.Runtime.FakeRuntime.getKnownAssemblies@420(FakeConfig config, String cacheDir, Lazy`1 paketDependenciesFile, VerboseLevel logLevel, GroupName groupName, FrameworkIdentifier framework, FileInfo lockFilePath, String assemblyCacheHashFile, String assemblyCacheFile, Lazy`1 lockFile, Lazy`1 cache, Lazy`1 writeIntellisenseTask, Unit unitVar0) in D:\a\1\s\src\app\Fake.Runtime\FakeRuntime.fs:line 427

[matthid]

@BlythMeister Please give more context and steps to reproduce ;)

[BlythMeister]

i deleted the .nuget folder on my machine under my user profile (for another reason)
next time i ran fake, i got this error.
ran it again...all ok...

[matthid]

Yes then the cache was invalid and the detection was ok ;)

[BlythMeister]

hmmm...big red stacktrace may not be required for an "expected exception" ;)

[matthid]

I feel like that is acceptable for people messing around with the cache folder by hand ;)

[BlythMeister]

this also happened on a brand new machine, fresh checkout of repo and run...because the cache doesn't exist before the 1st load :D

[matthid]

but then you commited the .fake directory which you shouldn't?