What release of Ng-zorro-mobile i must use with angular 5 - ng-zorro-antd

I'am looking of a release of Ng-zorro-mobile i must use with angular 5.
I' using Ionic 3 with angular 5 Help please

I'd advice you to upgrade your dependencies. The oldest version history they have reads that the lowest Angular version they've supported is 6.x.
https://github.com/NG-ZORRO/ng-zorro-antd-mobile/blob/0.9.4/package.json

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building corda 4.8 on windows with intellij

I get this error while building corda 4.8 on a windows 10 box using intellij:
Could not find javafx-controls-mac.jar (org.openjfx:javafx-controls:11.0.2).
Searched in the following locations:
file:/C:/Users/Admin/.m2/repository/org/openjfx/javafx-controls/11.0.2/javafx-controls-11.0.2-mac.jar
I don't want to build the mac version, how can I disable or ignore the error?
Maybe I'm missing something as far as context, but currently, you can only build corda with java 8. Java 11 is not supported yet. Take a look at this docs page for the specific tooling you need to configure CorDapps.
https://docs.corda.net/docs/corda-os/4.7/getting-set-up.html
Long story short, until corda 5 is released you'll need java 8 to build cordapps which you can install here : https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html

Should I upgrade from Symfony 2.6 to Symfony 4 directly or do it in intermediate stages?

We are thinking of upgrading our Symfony app to Symfony 4.
The app is currently on Symfony 2.6 version (we can upgrade to php 7).
What are the benefits to upgrade through 2 stages from 2.6 to 3 then from 3 to 4 compared with upgrading directly from Symfony 2.6 to Symfony 4?
There are some differences between SF 3.4 and SF 4. So if you have an older Version you should first upgrade to SF 3.4. This is because SF 4 has another structure and use the flex framework. It's possible that you have to change a lot of things during the migration. If you have the time you can do that. If your have Unit-Tests it's much easier to find all the problems.
In general you should read the migration documents that describes the changes in every version and change your code in that way.
https://symfony.com/doc/2.7/setup/upgrade_major.html
So better you upgrade first to version 3.4. Then you have the compatibility to your older code and plugins but no new features that come up in SF 4. But all that depends on the size of your application.
You can upgrade, but it will be very painful because the development methodology has changed very much between symfony2 and symfony4. Will better to install separate Symfony 4 project and implement each component of application separate.
You should upgrade by this step:
1 -Symfony2.6 to Symfony2.7
2- Symfony2.7 to Symfony2.8
3 - Symfony2.8 to Symfony3.4
4- Symfony3.4 to Symfony4

Project started in Xcode 4.3 compiled in Xcode 5 defaulting to iOS 6 Navigation Bar

I'm having a weird and intermittent issue where my UINavigationBar is showing iOS 6 style. The app was originally created in Xcode 4.3 but I can't seem to pin down what makes it use the old style. Is there any definitive way to ensure that this is taken care of?
In your target build settings make sure you use the latest SDK (7.0) as base sdk.

Xcode 4 code backward compatible

Can I create code on Xcode4 and then run this exact same code on Xcode3. In other words is it backward compatible and if not what do I have to do to ensure that I can run the code on xcode 3.
Not something I've tried. You need to check the Project Format is set to the matching Xcode 3 version. But I would still not be surprised if it didn't work. The reality is that this is Xcode's way of telling you to update your XCode 3 machine :-)
BTW, you will probably also run into a number of SDK version issues as well.
Yes, you can run the same code in XCode 3 assuming you haven't used features available in newer SDKs, not available in older XCode version.
But as #drekka said, project format will be most likely incompatible between two versions, so you'll probably need to ignore XCode 4 project upgrade warnings.

Can one keep both version of Flex builder simultaneously (verision 3 and version 4) on his/her machine

I have Flex builder 3 already installed on my machine. Now, I want to use Flex builder 4 also (officially Flash BUilder 4) on same machine. Can I directly start with Flex builder 4 and import my Flex BUilder 3 project there w/o any loss ? If not then, do I need to first uninstall my current version (3) or can I keep both the builder versions simultaneously ?
Also, are there any pre known concerns with the migration ? Will it improve/degrade the performance ?
If any one has tried this before, please help me.
(My system has XP professional, Intel core 2 Duo, 2 GB RAM ).
Thanks in advance.
You can keep both versions active at the same time. However, don't bother trying to migrate projects back and forth between the two, it will not work out well :)
If you want to keep a project active in FlexBuilder 3 after migrating, I'd recommend creating a branch to maintain it, and check out from there to do bug fixes etc. Continue in the trunk with your upgraded Flex4 project.
Providing you are using two completely separate Eclipse or [Flash|Flex]Builder installations you won't have any issues.

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