Buck: java.lang.NoClassDefFoundError: Could not initialize class com.facebook.buck.util.environment.MacWifiSsidFinder

[s3lvin]

java.lang.NoClassDefFoundError: Could not initialize class com.facebook.buck.util.environment.MacWifiSsidFinder
    at com.facebook.buck.util.environment.NetworkInfo.getWifiSsid(NetworkInfo.java:77)
    at com.facebook.buck.util.environment.DefaultExecutionEnvironment.getWifiSsid(DefaultExecutionEnvironment.java:79)
    at com.facebook.buck.cli.MainRunner.runMainWithExitCode(MainRunner.java:1176)
    at com.facebook.buck.cli.MainRunner.runMainThenExit(MainRunner.java:476)
    at com.facebook.buck.cli.MainWithNailgun.nailMain(MainWithNailgun.java:77)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.facebook.nailgun.NGSession.runImpl(NGSession.java:313)
    at com.facebook.nailgun.NGSession.run(NGSession.java:199)

This error happens when I try to generate the Xcode project, after upgrading to Mac OS Big sur. Any idea what could have gone wrong?

[v-jizhang]

Looks like something broken after you upgrading MacOS. Please check your environment, re-install buck and try again. Thanks

[v-jizhang]

@s3lvin, We do not support Mac OS Big sur yet but we will keep this issue open until Big sur is released. If it is a buck issue, we will fix it. Thank you.

[victorpanitz]

@v-jizhang Is there any buck internal stuff not supporting MacOS Big Sur or the non-compatibility is totally related to homebrew compatibility ?

[v-jizhang]

Should not, but we haven't fully tested buck on Big sur yet.

[voshk]

Same issue on Mac OS Big sur...

[shepting]

My coworker was able to work around this issue in case others are looking for a temporary workaround: https://github.com/airbnb/buck/pull/24/files

[rootblack45]

Any update for Mac OS Big Sur?

[brettwooldridge]

@v-jizhang @kageiit All of the developers in my company are broken as of today. Any help?

[rootblack45]

@brettwooldridge Found an update for Big Sur here. Just wait for the next release of Buck.

[brettwooldridge]

@rootblack45 That code is on the dev branch. Even before your comment, I suspected the issue was likely fixed on dev, and attempted to build it. Unfortunately, I am unable to build dev locally because of #2416. See my comment on that issue.

EDIT: Nevermind, I solved the buck compilation issue. I was able to build the dev branch, and it appears to work on Big Sur.

[EngineHG]

@brettwooldridge how to build the dev branch

[zion001]

@rootblack45 That code is on the _dev_ branch. Even before your comment, I suspected the issue was likely fixed on _dev_, and attempted to build it. Unfortunately, I am unable to build _dev_ locally because of #2416. See my comment on that issue.

EDIT: Nevermind, I solved the buck compilation issue. I was able to build the _dev_ branch, and it appears to work on Big Sur.

hi , may I bother to ask how did you get it .

[brettwooldridge]

@zion001 Using JDK 11.0.9+7-LTS...

cd buck
git checkout 0dd10c43474a5edd04e536cd1ac39948854d33a8
ant clean ; ant
./bin/buck build --config java.target_level=11 --config java.source_level=11 buck --show-output

The final output of the build is something like:

//programs:buck buck-out/gen/ce9b6f2e/programs/buck.pex

That is the buck binary, copy that somewhere, rename it "buck", and mark it as executable (chmod +x buck).