Java error

[anubhavmohandas]

Type: Bug

The project was not built since its build path is incomplete. Cannot find the class file for java.lang.Object. Fix the build path then try building this project.

This error is showing, i am unable to write java basic code also. Kindly help me.

VS Code version: Code 1.82.1 (Universal) (6509174, 2023-09-08T08:49:32.930Z)
OS version: Darwin arm64 22.6.0
Modes:

System Info

Item	Value
CPUs	Apple M1 Max (10 x 24)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled
Load (avg)	2, 2, 2
Memory (System)	32.00GB (18.76GB free)
Process Argv	--crash-reporter-id 30830201-7b6c-4541-a727-9431d7e34738
Screen Reader	no
VM	0%

Extensions (8)

Extension	Author (truncated)	Version
java	red	1.22.0
intellicode-api-usage-examples	Vis	0.2.8
vscodeintellicode	Vis	1.2.30
vscode-java-debug	vsc	0.54.0
vscode-java-dependency	vsc	0.23.1
vscode-java-pack	vsc	0.25.14
vscode-java-test	vsc	0.39.1
vscode-maven	vsc	0.42.0

A/B Experiments

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vsreu685:30147344
python383:30185418
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vswsl492:30256859
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vserr242cf:30382550
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vsjup518:30340749
pythonptprofiler:30281270
vsdfh931cf:30280410
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vscoreces:30445986
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binariesv615:30325510
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pythonfmttext:30731395
fixshowwlkth:30771522
showindicator:30805244
pythongtdpath:30769146
i26e3531:30792625
pythonnosmt12:30797651
pythonidxptcf:30805731
pythonnoceb:30805159
synctok:30821570
dsvsc013:30795093
dsvsc014:30804076
diffeditorv2:30821572
dsvsc015cf:30829746

[flosardo]

Issue repeated #193026
Same issue here. Appareantly many people are having the same problem, here is the link to the issue on stackoverflow yet unsolved
https://stackoverflow.com/questions/77092008/why-is-my-build-path-suddenly-incomplete-for-my-java-project-in-visual-studio-co?noredirect=1&lq=1
Update 13 sept: A possible fix could be adding JAVA_HOME to your path(if it's not already there) and restart VS Code as suggested in the following stackoverflow answer. It worked for me.
https://stackoverflow.com/questions/77092008/why-is-my-build-path-suddenly-incomplete-for-my-java-project-in-visual-studio-co?noredirect=1&lq=1
However, it still remains a mystery why all of a sudden this happened

[linaqvo]

I'm having the same problem too! This isn't just you, and I tried the JAVA_HOME solution but unfortunately that didn't work for me either.

[IllusionMH]

/causedByExtension

VS Code does not provide support for Java out of the box and this is controlled by extension(s)

Please check extension docs and make sure that you have proper config, otherwise report issue in extension's repo.

[vscodenpa]

This issue is caused by an extension, please file it with the repository (or contact) the extension has linked in its overview in VS Code or the marketplace for VS Code. See also our issue reporting guidelines. If you don't know which extension is causing the problem, you can run Help: Start extension bisect from the command palette (F1) to help identify the problem extension.

Happy Coding!

[starball5]

See redhat-developer/vscode-java#3287.

Related on Stack Overflow: Why is my build path suddenly incomplete for my java project in VS Code?, where I have written up an answer post.