I'm using the JDBC library in my IntelliJ project (mysql-connector-java-5.1.40-bin.jar)
I put it into a folder named lib and used right click > Add as Library to add it as a library. It worked fine.
Later, I zipped the project and moved it to another computer. After unzipping it and importing it in IntelliJ, it gave me the error SQLException: No suitable driver found for jdbc:mysql, which means that it couldn't find the library.
I looked through the file explorer in IntelliJ and it showed both the jar and XML file, and the XML file was pointing to the right location (jar://$PROJECT_DIR$/lib/mysql-connector-java-5.1.40-bin.jar).
I added the jar file as a library again and now it works. But how can I make it work without having to readd it each time?
Use Gradle (or Maven) for building and dependency management. IDEA should import a Gradle (or Maven) project just fine.
The problem was that I was overwriting the IntelliJ Module Library (.iml) file.
When you import a project to the same folder, IntelliJ asks you whether you want to overwrite or reuse the IML file. Since Overwrite was the default option, I selected it, but that caused it to forget what libraries it was using.
By choosing Reuse instead, it works perfectly.
Related
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.
I started to learn Selenium.
After creating the project I tried to add some jar files.
As you see all required jars were added. But
...sources.jar
looks like Empty Project. Why this is happening?
Probably this happening because ...source.jar file has a multiple files.
Click Libraries from Project Settings
+and add this .jar file here first.
When you added turn back to Modules
After these steps "Empty library" error is gone.
Presently having an annoying time getting a jar added to the external library for the project, then in turn not disappear when syncing and the imports working. Adding I figured out and answered in another question. The issue is to keep persistent and accessible to a jar I create within the project for import.
I am not sure if I am missing a step or forgot to set something. I am using a modified gradle (forgegradle) to create the project. Have not found a solution with the documentation, or any for IntelliJ yet. I am generally new with IntelliJ, choosing to use it instead eclipse which I have previously used.
The goal is a to create an add-on for a mod to another jar. The main jar already in the external library from the start, now attempting to add the mod to it. I could modify the mod, but it is not my code, so rather not simply modify it directly and repackage it.
a jar added to the external library for the project, then in turn not disappear when syncing and the imports working
If you are using an external build tool / system that syncs with IntelliJ it is recommended to use that build tool / system to add dependencies.
IntelliJ will always take a backseat, and treat the build tooling / system as the source of truth for the project model as best it can.
You mention you are using gradle, I would recommend adding the dependency as a managed dependency that is, let gradle download it from a repository, and resolve the dependency/library itself.
If you can not do this, and you can't host a repository yourself, The next best recommendation I have, is creating a 'libs' folder inside the project, that contains jars that can't be found in repositories (They may be mods or plugins that were never published)
You can read up on how to add a library folder to gradle here: How to add local .jar file dependency to build.gradle file?
I simply want to export my java intellij project from one pc to another, no need for git because I only want to test something on the other pc because it has more memory.
Surprisingly no information on this is available, there is information on how to export a project to a jar file, but I cannot import from this jar file. On their website : https://www.jetbrains.com/help/idea/2016.3/import-existing-sources-project-name-and-location.html they don't give any clear instructions on how to do this simple operation? how is this done?
Till version 2016.3.4 IntelliJ doesn't provide such facility.
Best way to do so would be to copy the whole directory containing your project or module. Doing this would retain all your project related settings.
With the latest version of IntelliJ IDEA, all you need to do is unzip the project in the new computer and then select Open in the IntelliJ IDEA new project wizard. Do not use the option to import the project from the zip file, as that doesn't work.
Take all directories of your project and copy them into the other computer. Launch IntelliJ and open the folder of your main directory project, that is all it needs to work (*.iml files do all stuff for you). If you don't know what directory is the main, you can close the project in your other IDE and see what paths it is catching. For example in my case:
I have created a new Intellij project. But I can't use the third party jars in my project. I have the jars in a directory structure as follows:
repository/commons-logging/commons-logging-1.0.4.jar
repository/commons-lang/commons-lang-2.1.jar
etc.
I want to add them just by pointing to the repository directory, but couldn't find any ways to add them.
But when I am using classes or API from that jars, the editor can't resolve the classes.
I have tried from Project Structure but can't configure it.
Go to File-> Project Structure-> Libraries and click green "+" to add the directory folder that has the JARs to CLASSPATH. Everything in that folder will be added to CLASSPATH.
Update:
It's 2018. It's a better idea to use a dependency manager like Maven and externalize your dependencies. Don't add JAR files to your project in a /lib folder anymore.
If, as I just encountered, you happen to have a jar file listed in the Project Structures->Libraries that is not in your classpath, the correct answer can be found by following the link given by #CrazyCoder above: Look here http://www.jetbrains.com/idea/webhelp/configuring-module-dependencies-and-libraries.html
This says that to add the jar file as a module dependency within the Project Structure dialog:
Open Project Structure
Select Modules, then click on the module for which you want the dependency
Choose the Dependencies tab
Click the '+' at the bottom of the page and choose the appropriate way to connect to the library file. If the jar file is already listed in Libraries, then select 'Library'.
On the Mac version I was getting the error when trying to run JSON-Clojure.json.clj, which is the script to export a database table to JSON. To get it to work I had to download the latest Clojure JAR from http://clojure.org/ and then right-click on PHPStorm app in the Finder and "Show Package Contents". Then go to Contents in there. Then open the lib folder, and see a bunch of .jar files. Copy the clojure-1.8.0.jar file from the unzipped archive I downloaded from clojure.org into the aforementioned lib folder inside the PHPStorm.app/Contents/lib. Restart the app. Now it freaking works.
EDIT: You also have to put the JSR-223 script engine into PHPStorm.app/Contents/lib. It can be built from https://github.com/ato/clojure-jsr223 or downloaded from https://www.dropbox.com/s/jg7s0c41t5ceu7o/clojure-jsr223-1.5.1.jar?dl=0 .