由于空间问题，WSL 无法找到文件或目录

Question

The error I was originally getting was that wsl was not able to find JAVA_HOME. After I ran the command

export JAVA_HOME="/mnt/c/Program Files/JAVA/jdk-15.0.2"

And now the error it gives me is:

ERROR: JAVA_HOME is set to an invalid directory: /mnt/c/Program Files/Java/jdk-15.0.2

Please set the JAVA_HOME variable in your environment to match the
location of your Java installation.

When I run

${JAVA_HOME}

to check the variable I get the response

bash: /mnt/c/Program: No such file or directory

Which I believe is due to the space in the file name. Online it said that the space shouldn't be an issue as it is enclosed in quotes so I don't know what to do here.

Any help would be appreciated!

Answer 1

It looks like you are trying to use the Windows version of Java from within WSL. That should be possible, but you are currently exporting a Linux-style path, which the Windows version won't handle (as you can see).

If you have both the Windows and Linux version of Java installed, then see this answer for some related information. The question there is about npm, but the core issue is the same -- The Windows version is getting picked up in the path before the Linux version.

If you just have the Windows version, then at least modify the JAVA_HOME to be 'C:\Program Files\JAVA\jdk-15.0.2' (watch out for potential quoting issues with backslashes in the Linux-shell string, though). I'm not sure that's going to take care of all of your issues -- I've never tried running the Windows Java version through WSL myself. But it's at least the first step you're going to need to take to get past the current error.

The second error when you just execute ${JAVA_HOME} is to be expected, as you are trying to execute this directory (with a space) as a command . The shell is interpreting the portion before the space as a command, and the portion after the space as the argument. If you were to set it to a directory without a space, you'd still get an error message when trying to execute it (as you are now), just that it would be something like bash: /mnt/c: Is a directory .

If you just want to check it, use echo ${JAVA_HOME} .