Setup:
I have imported the Git project into IntelliJ.
I compiled the project using "make compile"
Issue:
I tried to create a "Run Configuration". The Module is not listed in the drop-down window.
Debugging:
I compared it with a working setup wherein a project was created using "File->New Project" and wherein .iml was automatically created. I see that the problematic project does not have a .iml file. I could not make out any other differences.
Is the absence of .iml file the root-cause for the issue? If so, how to generate this .iml file? Rather than manual writing, I prefer to generate it using GUI to avoid any manual errors. Please suggest.
In Eclipse IDE, one can convert a project from one type to another. Ex: normal project to Maven project. A default project to Java project by editing .project file.
Whenever I create an sbt project in intellij, I get something like this:
What is root-build here, and why is it labeled as "sources root"?
When you create an sbt project in IntelliJ, the default root of sbt, called root, is added as a module. You can see this by right-clicking on the project and clicking Open Module Settings. That is what root-build refers to.
You can read a description of content roots on the IDEA site.
I'm just guessing (at least I am being honest) but I believe SBT configuration itself can be considered a "development project" and so is setup as a separate module called "project" for its build, i.e. the build of the build configuration. Notice it has its own "target" directory.
I have a Scala Play project. I'm using Play 2.2.1. I downloaded Scala, Play 2 supported and SBT plugins. Everything is OK, but When I call route on Action in the Controller appear following error(Look screenshots):
I'm using IntelliJ IDEA 12.1.6 Ultimate version. Scala version 2.10.2
Anybody know how to fix this problem?
Thanks in advance!
Edit
When I generate my project to Intellij IDEA via "play idea" command in play console, and I opened project in IDEA project structure was such:
Then I saw answer #millhouse and discussing on this githup([Play 2.2] "play idea" creates not working source mapping in target) and I removed following folders from Sources Folders:
target\scala-2.10\src_managed\main\controllers
target\scala-2.10\src_managed\main\views
and "Report highlighting error" disappeared, but now there is another error:
and
my route:
And I've changed "Sources Folders" as shown below:
But it doesn't help me. And remains "Unspecified value parametrs" error.
millhouse's answer helped me find the right answer. Play 2.2 (and perhaps earlier versions, haven't checked) output a scala version of the routes file to project_dir/target/scala-2.10/src_managed/main So for IntelliJ to get the highlighting right you need to make sure that src_managed/main is added as a source folder. The reverse routes for javascript are for some reason included in project_dir/target/scala-2.10/classes_managed so you'll have to add that as well. (In your screenshot it looks like classes_managed is set to excluded so you'll want to un-exclude it by pressing the x button on the right hand side.)
Here's a screen shot of my project structure:
Update:
In Play 2.3 (or perhaps recent versions of IntelliJ) adding the classes_managed no longer fixes the problem. Instead of adding classes_managed to the project's sources add it to it's dependencies. By doing that IntelliJ should be able to pick up the compiled routes.class.
This is a common problem, it's because IntelliJ needs to be shown where to look for the compiled Scala templates and routes file. Here's how I fixed it on my IntelliJ 12.1 installation:
Go to the Module Settings for your project in IntelliJ (select the top-level, hit F4)
Choose the Modules item in the Project Structure window that appears
Select the projectname item (as opposed to the projectname-build item)
Add the compiler's output directory to the Source Folders items;
For Scala 2.10 it's target/scala-2.10/classes
I personally find the IntelliJ UI for this to be very non-intuitive; you might need to take the target directory and/or one of its subdirectories out of the Excluded Folders first
After applying that change, IntelliJ should see the results of compiling each routes and .scala.html file as just-another source file, so they won't show as "broken" and auto-complete should work for them.
I'm working with intellij idea but I can't see the java source files in the project tree. I see the packages, I can open it, but the class files are not displayed. Any idea? This has worked until a few days ago...
Under the intelliJ IDEA 14.0.3 community edition, upon launch I don't see my project folders. I found by going into
View > Tool Windows > Project
seems to show the folder structure.. Same as ALT + 1
Below the menubar , on the left there is a dropdown which in your case may be showing "packages" now (because you can see the packages). From the same dropdown, select "Project Files" below "SCOPES"
You need to check out the project correctly if you are checking out from SVN repo or you must not have selected correct project folder.
You can also configure your project from File->Project Structure check your Source folder is excluded or not.
Also Alt+1 will give you project structure of files in tree format
Check in "Project Structure" (ctrl+alt+shift+S) if you didn't set your source as "Excluded" (in Modules, sources).
If you are develop a maven project, you could run mvn idea:idea and then open the project in your Intellij, the source files and the project tree would become the shape you like.
I build in maven multiple projects (let's name them A,B,C). Project A uses .jar of project B which uses .jar of project C.
I am modifying the code of all A/B/C projects, (A is MVC app, B are business services and C is some shared layer).
The thing is, in Eclipse/NetBeans I can see all of them at once and it's comfortable to modify them. In IDEA though, I have to open 3 instances (or n instances) of IntelliJ IDEA.
Am I missing something? Is there better approach when using IntelliJ? This is the biggest downside of IntelliJ for me atm.
I think this has improved with recent versions of IntelliJ. In my current version (12.0.2), you can add any number of separate Maven projects to the same "workspace".
The simplest way I've found to do this is to click the little + icon in the "Maven Projects" window (View > Tool Windows > Maven Projects) and then select the additional pom file you want to import.
Step 1: open "Maven Projects"
Step 2: select the project you want to import:
Prequisite
Having all the related projects in the same root directory
can be helpful.
Steps
1) First you create a new Empty project
2) Then you select the root directory of all your projects.
This will create a empty project, with a .idea directory that will simply remember the module organisation we are about to do in the next step
3) Then, in the next window, you import the different projects as modules
4) In the next window, to import each project, simply double click on the build.gradle, or pom.xml
The project will be imported as a new module.
5) Done, you now have all your projects as modules, opened on the same IntelliJ project
Yes, your intuition was good. You shouldn't use three instances of intellij. You can open one Project and add other 'parts' of application as Modules. Add them via project browser, default hotkey is alt+1
In IntelliJ 14.1.2, I did it like following:
Select File->Project Structure->Modules.
Select + and Import Module and select the directory of your project(or directory where pom exists) and click OK.
Follow through the next flow of screens and after you click Finish, you should see the project alongside your existing one.
None of the solutions worked for me, since I am not working on Maven projects. There is a simpler solution. Go to:
File->Project Structure->Modules.
Instead of adding module, simply click the third option (copy). Browse your local directory and select the project you would like to add. Module name will resolve automatically. That's it.
Update: When you want to reopen to project with multiple sub-projects, in order to avoid re-doing steps as described above, just go to
File->Open Recent->'Your Big Project'.
Since macOS Big Sur and IntelliJ IDEA 2020.3.2 you can use "open projects in tabs on macOS Big Sur" feature. To use it, you have to enable this feature in your system settings:
System Preferences -> General -> Prefer tabs [always] when opening documents
After this step, when you will try to open second project in IntelliJ, choose New Window (yes, New Window, not This Window).
It should result with opening new project in same window, but in the new card:
To expand #Neo answer:
after choosing your directory. select import module from external model and choose your model (maven in this case).
Then check keep project files option from next dialog. It will keep all files in original directory.
Your final project structure would be something like this.
Now you can add your module as dependency to other module's pom.xml and if you change the source code of your dependencies, Intellij takes care of updating your project (there is no need to run mvn build manually for dependencies)
new empty project
File -> New -> Module from Existing Sources
For who uses Gradle can also avail the same:
Go to:
1. View --> Tool Windows --> Gradle
2. Click on the + button and add your build.gradle file
Open preference -> appearance & behaviour -> System settings -> select (open project in new window) then apply.
Then you could open and edit multiple projects.
You can use Armory plugin which makes switching between projects comfortable. The default shortcut for Project List is Alt + A.
By default currently opened projects are displayed at the top of this list (with bold style).
Use the button for the add maven projects and go inside the folder of the project. Then, select the pom.xml file and add them in the IntelliJ.
Press "F4" on windows which will open up "Project Structure" and then click "+" icon or "Alt + Insert" to select a new project to be imported; then click OK button...
To Intellij IDEA 2019.2, F4 + click on module, click to + for add any project from your HDD, above this menu yo can edit the IDE with you create the project and more options, very easy
For people not using maven to build and wanting to add a new project (I am using intellij 14.1.3):
Right click the top level folder in the project view, select new ->
Module
Name the module the same name as the project to be added
From the top menu select File->New->Project. Enter the same name as
the new module, same folder locations as well.
Open the Project, and wait for intellij to create the project
structure.
Close this new project, and open the original project the module was
added to in step 2
Depending on your builder, additional steps will be needed to add it to the build process.
For SBT, and in the top level project I modified the Build.scala file to aggregate the new project, and added the project in the SBT projects window. More info on SBT multiproject builds: http://www.scala-sbt.org/0.12.2/docs/Getting-Started/Multi-Project.html
"IntelliJ IDEA 2022.1.1 (Community Edition)" you have to navigate
To Add Exiting Module to same window navigate "File -> New -> Module from Existing Sources" then it will allow you to select pom.xml and then click "Create" button next window then project will be added to your current workspace.
Note :: Who ever switches from Eclipse to Intellij this is the first problem
Assuming they are under the same folder, click File-Open File or Project-<parent folder>.
you can use import module option which will open it just like eclipse in the same navigator.
For IntelliJ Idea 2021.3.3 users, The below solution didn't work for me, although I was selecting my project main folder, I've gotten only the main and test folders imported!
Peoject Structure => Modules => Import module
The solution is:
view => tool Windows => Maven => click the + icon => add the project POM.xml file
I am new to maven and did not understand how I could work with local maven project added through Viktor Nordling's answer and still have a proper dependency in pom.xml file. The answer is simple: intellij first looks at your locally added module and if it doesn't find one it goes to get the project remotely. You can check this by looking at "external libraries" under your project browser when you add or remove maven module.
Hope this helps anyone.
As of release 2019.2, this is as easy as File->Attach Project.
🎉🎉🎉🎉🎉
See: https://youtrack.jetbrains.com/issue/WEB-7968
After importing project into IntelliJ, Go to pom.xml of each module -> right click -> Click on Add as Moven Project. It will add the module as Moven project, do this for all the modules in the Project. Refer this