Error on Updating DSharp

[Pio Pio]

Hello,

I am trying to update DSharp to the latest release. Before doing that I updated succesfully Spring4D.

When I try to update DSharp and build DSharp.Core.DelphiXE2.bpl I have the error message "[DCC Error] DSharp.Collections.Iterators.pas(170): E2010 Incompatible types: 'Spring.Collections.IEnumerable<DSharp.Collections.Iterators.Iterator<T>.T>' and 'DSharp.Collections.Iterators.TIteratorBlock<DSharp.Collections.Iterators.Iterator<T>.T>'"

Any idea of what I am doing wrong ?

Many thanks

Alberto

[Pio Pio]

Hello again,

I have cleaned the DSharp installation on my PC and re-installed it again. Built all the packages and now I have a new error:

"[DCC Error] DSharp.Collections.Iterators.pas(54): E2170 Cannot override a non-virtual method"

The error points to the line function MoveNext: Boolean; override; ofthe class TCustomIterator<T> which descends from TIterator<T> of Spring.Collections.Base;

I looked into the class TIterator<T> and the function MoveNext is not virtual. 

Is there anything else I have to do before building the packages ?

Many thanks

Alberto

[Pio Pio]

Hello,

I am sorry to sound pushy but is there anybody who can point in the right direction here?

Many thanks 

Alberto 

[Stefan Glienke]

Apparently, you are not using the correct DSharp branch - please try again. Hint: https://bitbucket.org/sglienke/dsharp/src/spring-2.0/

[Pio Pio]

Hi Stefan,

I deleted the DSharp folder, recreated a new one, and cloned the Dsharp - Spring 2.0 repository you gave me. Then opened the DSharp.Core.DelphiXE2.bpl and ran "build".

I have the same error message as above.

I double-checked the License.txt file of the Spring4D folder and I can confirm I have the Springd4 ver 2.0 installed.

What else can it be?

Alberto

[Stefan Glienke]

You are using the wrong branch

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[Pio Pio]

Hi Stefan,

Many thanks for pointing this out.

I used the Master branch and the build went beyond  DSharp.Collections.Iterators.pas therefore I suppose this is the correct branch I should use.

Sadly, there is another error now:

[DCC Fatal Error] DSharp.Core.Reflection.pas(718): F1054 Spring4D needs to be compiled with INVOKABLE_EVENT defined - see Spring.inc

I opened Spring.inc and the issue seems to reside here:

// This define is for compatibility with other libraries that are using Invoke on IEvent
{.$DEFINE INVOKABLE_EVENT}

I googled it but didn't find any clue of what to do to progress. What am I supposed to do?

Is this something that was introduced in Ver 2.0? I cannot remember I had the same issue last time I upgraded.

Many thanks

Alberto

[Stefan Glienke]

The error message and the comment in the inc file has all the information you need.

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[Pio Pio]

Hi Stefan,

Unfortunately I have never worked on .inc files therefore the comments and error messages are beyond me.

I googled to find some details of how to define an invokable event with no success.

Is there a link you can point out to start learning?

Alberto

[Nick Hodges]

Pio...

I've lost the thread.  If you restate the problem, I can try to help you...

Nick 

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[Pio Pio]

Hi Nick,

In a nutshell, I am installing DSharp from the master branch. I have XE2 on a Win 7 machine.

When I try to build the bpl I have the following error message:

"[DCC Fatal Error] DSharp.Core.Reflection.pas(718): F1054 Spring4D needs to be compiled with INVOKABLE_EVENT defined - see Spring.inc"

I opened Spring.inc and the issue seems to be here:

// This define is for compatibility with other libraries that are using Invoke on IEvent
{.$DEFINE INVOKABLE_EVENT}

I understand I have to define the invokable event in the .inc file but other than that I am at a loss.

I have googled it to find some help but no joy so far.

Many thanks


Alberto

[Nick Hodges]

Did you remove the period before the $ in the {.$DEFINE ...} statement?

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[Pio Pio]

Hi Nick,

Yes, that was one of my attempts. I changed it again just to make sure into:

  // This define is for compatibility with other libraries that are using Invoke on IEvent

  {$DEFINE INVOKABLE_EVENT}

but when it comes to build I have the same error message "[DCC Fatal Error] DSharp.Core.Reflection.pas(718): F1054 Spring4D needs to be compiled with INVOKABLE_EVENT defined - see Spring.inc"

Alberto

[Pio Pio]

Hi Everybody,

I think I have solved the issue.

The problem was I was amending the file Spring.inc but after that, I was building DSharp and not Spring4D first. I didn't realize Spring.inc was part of the Spring4D package, despite the name making this very clear. I was focusing my attention on the wrong place.

The solution was amending the file Spring.inc, building the DSharp package, and then the Spring4D package. At that stage everything fell into place and the build was completed succesfully.

Many thanks for everybody's time and help.

Alberto

[Nick Hodges]

Great -- glad it started working...

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