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From Piotr Nowojski <pi...@data-artisans.com>
Subject Re: Tips to fix IDEA strange problem after updating master code
Date Tue, 04 Jul 2017 09:11:21 GMT
Maybe try 

$ mvn clean 

Before reimporting and restarting/invalidating caches in IntelliJ? Did you deactivate scala-2.10
profile in the IntelliJ?

Piotrek



> On Jul 4, 2017, at 11:05 AM, 郭健 <guo.jian@immomo.com> wrote:
> 
> I have done all these but still got some issue in IDEA, especially in the flink-connector
project.
> ----
> 
> On 7/4/17, 15:57, "Piotr Nowojski" <piotr@data-artisans.com> wrote:
> 
>    Besides deactivating “scala-2.10” profile in the Intellij it might be necessary
to:
>    - reimport maven project:
>    	1. Right click on root module: “flink-parent”
>    	2. Maven
>    	3. reimport
>    - invalidate caches and restart: File -> Invalidate caches and restart -> invalidate
/restart
>    - rebuild whole project
> 
>    I suspect that either activation of scala-2.10 by default comes from flink-scala and
flick-scala-shell poms or it’s an artifact because you created/imported Intellij project
when 2.10 was the default. If the first option is true, this PR: https://github.com/apache/flink/pull/4240
<https://github.com/apache/flink/pull/4240> might fix this issue.
> 
> 
>    Another quirk that I encauntered is the compile error about  ILoopCompat class being
defined twice in Intellij (works fine from console). This comes from flink-scala-shell/pom.xml,
which defines two different source paths depending on Scala version:
> 
>    <source>src/main/scala-${scala.binary.version}</source>
> 
>    Such thing is not supported by Intellij and one have to manually remove one of the
source directory (either 2.11 or 2.10) from the project settings.
> 
>    Piotrek
> 
>> On Jul 4, 2017, at 9:46 AM, Aljoscha Krettek <aljoscha@apache.org> wrote:
>> 
>> Thanks for the hint!
>> 
>>> On 4. Jul 2017, at 06:03, Ted Yu <yuzhihong@gmail.com> wrote:
>>> 
>>> Looks like the picture didn't go thru.
>>> 
>>> Mind using third party site ?
>>> 
>>> Thanks
>>> 
>>> On Mon, Jul 3, 2017 at 8:56 PM, Jark Wu <jark@apache.org> wrote:
>>> 
>>>> Hi devs,
>>>> 
>>>> Yesterday, I updated the master code which include [FLINK-7030]: Build
>>>> with scala-2.11 by default. After that, I entered a strange problem with
>>>> IDEA that many classes can't be found, and the project can't be
>>>> built/compiled (in IDEA), but maven install worked good.
>>>> 
>>>> After a series of attempts, I found that IDEA activate the scala-2.10
>>>> profile by default which result in this problem. After deactivate
>>>> scala-2.10 profile via  sidebar Maven Projects -> Profiles -> deactivate
>>>> "scala-2.10" profile, and every works good again.
>>>> 
>>>> [image: 内嵌图片 1]
>>>> 
>>>> I share this tip in the dev list, because a lot of my colleagues have the
>>>> same issues, and maybe many other Flink devs have the same problem too.
>>>> 
>>>> BTW, I don't know why IDEA activate scala-2.10 by default, not sure it's
a
>>>> IDEA bug or the wrong profile setting somewhere.
>>>> 
>>>> 
>>>> Regards,
>>>> Jark Wu
>>>> 
>> 
> 
> 
> 


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