Building with Zig 0.15.1: codegen errors from cached 0.14.1 tools

[NEKLU]

Hi everyone,

I'm trying to build my project on Zig 0.15.1 with libvaxis (zig-0.15 branch).
The build fails because the build system tries to compile dwp.zig and gbp.zig from a cached 0.14.1 package, and those files still call std.io.bufferedReader, which was removed in Zig 0.15.

Here is the error:

error: root source file struct 'Io' has no member named 'bufferedReader'
    var indic_buf = std.io.bufferedReader(indic_file.deprecatedReader());
                    ~~~~~~^~~~~~~~~~~~~~~
note: struct declared here
const builtin = @import("builtin");
^~~~~

Even after clearing .zig-cache and ~/.cache/zig, it keeps pulling the 0.14.1 codegen (dwp/gbp) from somewhere.
My build.zig.zon points to libvaxis via .path = "deps/libvaxis" so it should be local, but the build still fetches the old codegen files.

How can I force Zig to only use the zig-0.15 branch code and stop compiling the old 0.14.1 tools?
Or is the only solution to downgrade the whole build to Zig 0.14.1?

Thanks in advance!

Even after clearing .zig-cache and ~/.cache/zig, it keeps pulling the 0.14.1 codegen (dwp/gbp) from somewhere.
My build.zig.zon points to libvaxis via .path = "deps/libvaxis" so it should be local, but the build still fetches the old codegen files.

How can I force Zig to only use the zig-0.15 branch code and stop compiling the old 0.14.1 tools?
Or is the only solution to downgrade the whole build to Zig 0.14.1?

Thanks in advance!