Error while installing check style plugin for eclipse

Question

I am getting the following error while installing the checkstyle plugin for my eclipuse via the update manager

Cannot complete the install because one or

Answer 1

Eclipse Mars (4.5.1)

Installation

You can install Checkstyle plugin from the Marketplace.

1. Help > Eclipse Martketplace...

2. Type "checkstyle plug-in" and hit Enter.

   You can also type only checkstyle and then select the plugin from the list.

   Click on Install.

Usage

1. Window > Show View > Other...

2. Type checkstyle > select the views (Ctrl + click) > OK

3. Right click on your project > Checkstyle > Check Code with Checkstyle

   The output will be shown in the checkstyle views (2 tabs).

   If you listed all the violations for a type (using the arrow / right click / double click), you can go back using the "Go back to the master view" arrow:

Answer 2

I think the caveat here is the plugin's homepage http://eclipse-cs.sourceforge.net/ gives http://sevntu-checkstyle.github.com/sevntu.checkstyle/update-site/ as the installation URL, but it does not work (Yes?). However on http://eclipse-cs.sourceforge.net/downloads.html a different installation URL http://eclipse-cs.sf.net/update/ is given, which turns out to work correctly.

Answer 3

I think Ashutosh' answer should have worked, alternatively another option is to download the zip archive from http://sourceforge.net/projects/eclipse-cs/files/Eclipse%20Checkstyle%20Plug-in/5.5.0/ and extract it to eclipse plugins folder.

Answer 4

When you attempt to install is Contact all update sites during install to find required software checked ? If not, it should be :

Expected Result

When using the update site in OP's post, following is the expected result :

Offline Installation

From this page :

Alternatively the Checkstyle Eclipse Plug-in can be downloaded from the Eclipse Checkstyle Plug-in's SourceForge download site. The download consists of a archived update site (file name net.sf.eclipsecs-x.x.x.buildstamp-updatesite.zip), containing all mandatory and optional parts of the plugin.

The plugin can be installed from the archived update site in the following ways:

1. Via Eclipse's P2 Installation Manager similar as described above, pointing to the archive file instead
2. Extracted into Eclipse's dropins folder. 

So, the steps are as follows :

1. Download the file referred above from here

2. Add the downloaded file as an 'Archived Download site' like so :

3. After that you should get the following :