Exception has been thrown by the target of an invocation.

[SanAngeloMike]

I was following the instructions on page 13 (using the full downloaded boilerplate, rather than the file content specified in the text). I get the following error no whether I do Run, Build, or Clean:

λ forge fake Build

C:\Users\Mike\Documents\fsharp\FsTweet\packages\FAKE\tools\FAKE.exe Build
C:\Users\Mike\AppData\Local\Temp\kudutemp already exists.
C:\Users\Mike\AppData\Local\Temp\kudutarget already exists.
Deleting contents of C:\Users\Mike\AppData\Local\Temp\kudutemp
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeInitializationException: The type initializer for '<StartupCode$FakeLib>.$Fake.Azure.Kudu' threw an exception. ---> System.UnauthorizedAccessException: Access to the path 'C:\Users\Mike\AppData\Local\Temp\kudutemp\FsTweet.Db.Migrations.dll' is denied.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileInfo.Delete()
at Fake.FileHelper.CleanDir@267-1.Invoke(String file) in D:\code\fake\src\app\FakeLib\FileHelper.fs:line 270
at Microsoft.FSharp.Collections.SeqModule.Iterate[T](FSharpFunc2 action, IEnumerable1 source)
at Fake.FileHelper.CleanDir(String path) in D:\code\fake\src\app\FakeLib\FileHelper.fs:line 267
at <StartupCode$FakeLib>.$Fake.Azure.Kudu..cctor() in D:\code\fake\src\app\FakeLib\AzureKudu.fs:line 26
--- End of inner exception stack trace ---
at Fake.Azure.Kudu.get_deploymentTemp()
at <StartupCode$FSI_0005>.$FSI_0005_Build$fsx.main@()
--- End of inner exception stack trace ---
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at Fake.FSIHelper.runScriptCached@315.Invoke(Unit unitVar0) in D:\code\fake\src\app\FakeLib\FSIHelper.fs:line 323

Error while running 'C:\Users\Mike\Documents\fsharp\FsTweet\packages\FAKE\tools\FAKE.exe' with args: Build

[demystifyfp]

Hi @SanAngeloMike. Will check and revert at the earliest. Thanks for informing.

[SanAngeloMike]

thanks

…

On Tue, Jun 5, 2018 at 11:36 AM, Demystify FP ***@***.***> wrote: Hi @SanAngeloMike <https://github.com/SanAngeloMike>. Will check and revert at the earliest. Thanks for informing. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#4 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAqRtU5--m7dm86W4gBnPKlQzkho1S-9ks5t5qVmgaJpZM4UZhqZ> .

[demystifyfp]

Hi @SanAngeloMike,

Are you using this boilerplate from this repository https://github.com/demystifyfp/FsTweetBoilerplate?

From the stack trace, I guess it is using the build script from the completed codebase (https://github.com/demystifyfp/FsTweet)?

[SanAngeloMike]

Yes, I am. I thought that there might be an issue there, but I assumed since the build script came with the source code that they would be compatible. It would be good to have a completed repository with a working build script so that, when your users get to a stuck point (as is inevitable when following long scripts) they can check the completed code and solve the problems themselves. This should reduce your workload and give you a code base to answer questions from. Also, I got a little confused when I saw a message talking about using git bash. I am using Cmder, as the book says. I hope that's not an issue. I really want to work my way thru your book but I have given up for now.

…

On Tue, Jun 5, 2018 at 11:47 AM, Demystify FP ***@***.***> wrote: Hi @SanAngeloMike <https://github.com/SanAngeloMike>, Are you using this boilerplate from this repository https://github.com/ demystifyfp/FsTweetBoilerplate? From the stack trace, I guess it is using the build script from the completed codebase (https://github.com/demystifyfp/FsTweet)? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#4 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAqRtXh1ps-0WDShkveNFHBRYqYKdCxOks5t5qgKgaJpZM4UZhqZ> .

[SanAngeloMike]

Thanks for getting back to me so soon, btw.

…

On Tue, Jun 5, 2018 at 11:53 AM, Michael D. ***@***.***> wrote: Yes, I am. I thought that there might be an issue there, but I assumed since the build script came with the source code that they would be compatible. It would be good to have a completed repository with a working build script so that, when your users get to a stuck point (as is inevitable when following long scripts) they can check the completed code and solve the problems themselves. This should reduce your workload and give you a code base to answer questions from. Also, I got a little confused when I saw a message talking about using git bash. I am using Cmder, as the book says. I hope that's not an issue. I really want to work my way thru your book but I have given up for now. On Tue, Jun 5, 2018 at 11:47 AM, Demystify FP ***@***.***> wrote: > Hi @SanAngeloMike <https://github.com/SanAngeloMike>, > > Are you using this boilerplate from this repository > https://github.com/demystifyfp/FsTweetBoilerplate? > > From the stack trace, I guess it is using the build script from the > completed codebase (https://github.com/demystifyfp/FsTweet)? > > — > You are receiving this because you were mentioned. > Reply to this email directly, view it on GitHub > <#4 (comment)>, > or mute the thread > <https://github.com/notifications/unsubscribe-auth/AAqRtXh1ps-0WDShkveNFHBRYqYKdCxOks5t5qgKgaJpZM4UZhqZ> > . >

[demystifyfp]

Hi @SanAngeloMike,

I am sorry for the inconvenience. Let me help you to overcome this.

I've tried to reproduce this issue. Here are the steps that I did (as per the instructions in the book)

• Cloned the boilerplate from here https://github.com/demystifyfp/FsTweetBoilerplate
• Ran forge paket restore and then forge fake Run
• Application started running as expected.

I am not sure about what is the root cause here. From the stack trace, I am seeing "Kudu" is getting executed but it is not a part of the FsTweetBoilerplate build script. It'd be helpful if you can provide the steps to reproduce.

It would be good to have a completed repository with a working build script
so that, when your users get to a stuck point (as is inevitable when
following long scripts) they can check the completed code and solve the
problems themselves. This should reduce your workload and give you a code
base to answer questions from.

I agree with you. As you mentioned, to keep track of the changes, in the FsTweet repository you can find the Tags associated with each logic steps and the final code base is in the master repository.

I really want to work my way thru your book but I have given up for now.

It's really sad to know this. Let me know how I can help you ?