How to upgrade bazel? | 易学教程

问题

I built bazel-0.4.0 successfully.
Then I tried upgrading it to the latest version bazel-0.5.1 using

$ ./compile.sh compile ../bazel-0.4.0/output/bazel.exe

It's giving me an error, bazel-0.5.0, bazel-0.4.5 gave me same error

ERROR LOG:

$ ./compile.sh compile ../bazel-0.4.0/output/bazel.exe  
🍃 Building Bazel with Bazel.  
ERROR: Illegal javabase value 'C:/Program Files/Java/jdk', javabase must be an absolute path or label.  
INFO: Elapsed time: 0.246s  
ERROR: Could not build Bazel

bazel-0.4.4 gave me different error

ERROR LOG:

🍃 Building Bazel with Bazel.  
.ERROR: no such target '//:Files/Java/jdk': target 'Files/Java/jdk' not declared in package '' defined by C:/Users/potlapel/Downloads/bazel-0.4.4/BUILD.  
INFO: Elapsed time: 0.182s  
ERROR: Could not build Bazel

回答1:

If you already have bazel installed, you can upgrade by running bazel build //src:bazel on a fresh clone of the git repository. Or just download distribution archive and run ./compile. Details: https://bazel.build/versions/master/docs/install-compile-source.html.

Now I'm not sure you can build bazel 0.5.0 with bazel 0.4.0, there were some incompatible changes around 0.4.3. We test building bazel from scratch, and building bazel with last released bazel, but not building bazel with old releases. That will be supported only after we reach 1.0.0.

回答2:

In addition to what mhlopko wrote, you generally don't need to build bazel yourself. Feel free to download the binary installer and just use that.

回答3:

To install latest bazel: just run "brew upgrade bazel"
Problem I had: I wanted 0.5.4 version of bazel for tensorflow 0.8.
Failed attempt to install specific version: brew install bazel@0.5.1
Final approach that worked to setup specific version of bazel:
1. Download bazel-0.5.4-without-jdk-installer-darwin-x86_64.sh from https://github.com/bazelbuild/bazel/releases location
2. chmod +x ./bazel-0.5.4-without-jdk-installer-darwin-x86_64.sh
3. ./bazel-0.5.4-without-jdk-installer-darwin-x86_64.sh

That's it!! check bazel version in your terminal. It should give 0.5.4

This approach works for any version of bazel that you want to install..brew way to install specific version didnt work for me. Hope this saves you from wasting hours trying alternative ways to set this up!

来源：https://stackoverflow.com/questions/44775709/how-to-upgrade-bazel

标签

bazel

failed-installation