Reputation: 5496

Cannot find the class file for java.lang.Object

I reinstalled my eclipse. and then imported all the projects in the Eclipse, but every project has a common error:

Cannot find the class file for java.lang.Object. at Line 1.

I have checked my Java Path. But not able to sort it out.

Upvotes: 20

Answers (9)

Yogesh

Reputation: 1585

This error is because one of "Android Private Libraries" is either corrupted or of wrong version. In my case it was android-support-v4.jar. I replaced it with one from a working project and it works.

Upvotes: -1

UKK

Reputation: 167

Try this:

Go to Build Path -> Libraries -> Add Library -> JRE System Library -> Select JRE

I am not sure but you might be missing JRE System Library in your project, this does not happen often but it is possible.

Upvotes: 3

Elisabeth Huhn

Reputation: 301

I just had this problem and all I had to do was clean the entire workspace, i.e. all projects in the workspace. The error went away.

Upvotes: 3

David Bosschaert

Reputation: 601

I had this issue too and in my case the issue was that the following line was missing from the .classpath file of the current project:

<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>

Adding it solved the problem for me.

Upvotes: 0

Cortex

Reputation: 2309

I've had this problem after installing a newer version of Google ADT. The solution, at least running OS X, is to make a copy of your project to a safe location, delete it completely from Eclipse and then import it again using File->Import->General->Existing Projects into Workspace.

FYI

I am Using Google's on OS X Mavericks Android Developer Tools Build: v22.2.1-833290

but I am almost sure I have done in the past with previous OSX and ADT versions.

Upvotes: 0

Matt

Reputation: 985

This happened to me when I tried to merge two branches of an Android project using eGit. For some reason my build path basically disappeared (possibly one of the files was untracked).

To get the JRE and android libraries back, I just right-clicked on the project in the project explorer, and hit Android Tools -> Fix Project Properties (these options are only available if you have Android ADT installed).

Upvotes: 4