So I'm working on a project that my friend had started. However, for some reason, after importing it from GitHub for the first time, there are hundreds of errors everywhere. It's a MineCraft plugin, and things such as 'Listener', 'EventHandler', '.getPlayer', are all getting 'Cannot resolve symbol'.
I took some screenshots, not sure if they will help in resolving any of this:
https://i.gyazo.com/81c21c5da19d6be1235870a4e213056d.png
https://gyazo.com/c692a04e3d598fe20de0ad79000cc409
Based on your screenshots, the project is referencing jars that IntelliJ can't find. In the project structure dialog, click on "problems" at the bottom and you should get a list of issues. Depending on the type of project you might need manually download the libraries.
Related
Hi everyone I am new to IntelliJ in general and especially to Gradle and I feel like a total noob. :D
Im not sure if this is a Kotlin DSL thing or if I just do it the wrong way and it wouldn't work in Groovey either.
After hours of trial and error and reading other SO posts I'm still not able to install a simple dependency... it can't be that hard...
Currently I am playing around with Jetpack Compose for Desktop even though it's still in alpha and it works but for the love of god I am not able to add a dependency.
So here is my Problem:
I try to install the dependency like they say I should in
https://developer.android.com/jetpack/compose/navigation#kts
and yes I know it's an android package so it may not compile or it may crash during runtime but shouldn't it at least find and download the dependency???
So... if I add
implementation("androidx.navigation:navigation-compose:2.4.0-alpha10")
to my build.gradle.kts
And try to compile it I get an exception during the build process:
What I tried so far:
I checked if the repository maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
who is configured in my build.gradle.kts repositories-section and in my settings.gradle.kts pluginManagement-section contains the package that I want.
The site https://mvnrepository.com/artifact/androidx.navigation/navigation-compose?repo=space-public-compose-dev tells me, that the repository contains the package that I need.
I checked the error log itself.
But I don't relly know what it tries to say.
I use Java SDK16, since I expect downward compatibility and the fact that the dependency is still in alpha I assume it should be compatible.
I use Kotlin 1.5....
that's it.
Thanks for reading all that :) I really appreciate your time... If I forgot some crucial information let me know and I will add it as soon as I can.
the problem which I feel is, is you are basically opening the wrong file. (I don't use jetpack compose so the answer might differ)
on the top left corner in the image, where there is project dropdown, open it and select android.
now there will be a different set of files in the Gradle folder, in fact, there will be 2 different files in that folder.
build.gradle (project: <project_name>)
build.gradle (Module: <project_name>.app)
open the second file and there will be dependencies copy + paste implementation code there.
the file which you have opened is actually the first file.
Well... here I am back again answering my own question.
After I switched to the terminal in IntelliJ Idea (which to be honest I could have thought of that prior to posting my question) there was highlighted text that gave me the necessary insight, why it wasn't working.
And after some searching the web in order to find out what an "aar" file is and why I didn't get a jar file like I expected it turns out that android has it's own little file format for android applications and that those cannot be used in regular java/kotlin projects.
I read somewhere, that 'aar' files contain a jar file and some other stuff and extracting the jar file from the aar file may be a way to get it working, but it didn't fix anything, maybe because the dependencies of the navigation package are aar files as well and therefor I'd need those packages as well and extract the jar file from those as well and it all seems like this isn't the right way...
So I guess I have to wait until Jetpack Compose for desktop somehow is able to use aar files or until the repositories deliver the packages in a regular jar file.
I spent the last 1,5 hour trying to make this simple tutorial work in IntelliJ IDEA, as you can see in this video.
When trying to run the code, I get the error:
/[...] -Dfile.encoding=UTF-8 src.HelloKt
Error: Could not find or load main class src.HelloKt
Caused by: java.lang.ClassNotFoundException: src.HelloKt
I have tried setting up SDK, invalidating cache, removing .idea and .gradle, rebuilding project, deleting the profile and adding it again. I tried those actions in different orders.
Here's a screenshot of the project:
It also complains Kotlin is not configured, but I have already configured it.
Here's the run configuration:
Here are the project settings:
Your Hello.kt file needs to be somewhere inside the src/main folder, probably in src/main/kotlin. This is different from the tutorial, because your project is using Gradle, and the one in the tutorial isn't. I think this is because newer versions of IntelliJ use Gradle by default for new projects, which wasn't the case when the tutorial was written.
The use of src/main/kotlin and src/test/kotlin as source code directories is a convention in Gradle (and Maven). When importing a Gradle project into IntelliJ, main becomes a module, and kotlin becomes a source folder within that module. The same goes for test. In your screenshots, the bold text and blue icons on main and test confirm that's how your project is set up. Files outside of those folders aren't treated as source files, which explains why your Hello.kt file isn't being compiled or recognised correctly.
It's likely that the default behaviour of IntelliJ when creating a new project has changed since this tutorial was written. In the tutorial, they select "Kotlin" as the project type and this creates a project that doesn't use Gradle. As a result, the project doesn't use the src/main/kotlin directory structure.
I can see from your video that you selected the same option, but on the next screen, IntelliJ still automatically selected Gradle as the build system for the new project. To match the project structure used in the tutorial, I think you would need to select "IntelliJ" as the build system.
I have a few import statements in my project that are displayed in RED. Intellij shows 'Cannot resolve symbol' errors, and I am not able to autocomplete these classes or their methods. However, when I run my project it runs perfectly fine. This is strange so much so, that lets say I have an import statement
import org.apache.velocity.app.Velocity
It cannot resolve the 'Velocity' class, even though when I do a ctrl+b selecting the 'app' package, it clearly shows the Velocity class:
I am lost in this and I am struggling to code like this. Any help will be appreciated.
Best Regards.
EDIT: In my project, some of the dependencies are also not resolved, although I refreshed my project multiple times. The exact same dependencies are resolved in my colleague's system, who is using the same code-branch and environment as me.
I can see that the unresolved dependencies lie inside the play.sbt package, but are still not resolved. Is there a compatibility issue between Intellij("15.0.2") and SBT("0.13.8" mentioned in build.properties of my app)?
Reimport project using option 'Import project from external model' and choose 'sbt'. In next window choose options like 'use auto-import' and download 'sources for SBT and plugins'.
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 imported Facebook SDK to Eclipse, along with some sample projects. I had red X on all of them, but I managed to fix. Now I still some red X's. When I look at java files of these projects, where there are errors (for example a line such as this: setContentView(R.layout.main); I see the following error:
R cannot be resolved to a variable.
When I look at the main.xml layout file, I see an error like that:
Multiple annotations found at this line:
- error: No resource identifier found for attribute 'confirm_logout' in package
'com.facebook.samples.hellofacebook'
- error: No resource identifier found for attribute 'fetch_user_info' in package
'com.facebook.samples.hellofacebook'
I tried to go to Android tools -> Fix project properties, but that didn't help. What is the problem and how can it be fixed?
Try going to Project > Clean all projects > OK and see if that helps. If not, it probably has to do something with your build path, dependencies or a combination of it all. Eclipse is pretty fragile in these circumstances. If you go to the "Problems" tab and paste the different errors you're having it might provide us with more context to help you.