Weird Android Build Error; Undefined 'Compiler' symbol - Android Q&A, Help & Troubleshooting

Recently, I have been trying to build Lineage OS 16.0 for my smartphone (Nokia 8). I have created a device tree, vendor tree and downloaded the kernel sources. However everytime I try to build, at around 63% it gives weird compilation errors. Here is the error message. I am building with WSL 2 environment;
Code:
[ 5% 2042/39631] //art/dex2oat:libart-dex2oat clang++ art/dex2oat/linker/image_writer.operator_out.cc [arm]
In file included from /mnt/d/dev/android/android/lineage/out/soong/.intermediates/art/dex2oat/art_dex2oat_operator_srcs/gen/art/dex2oat/linker/image_writer.operator_out.cc:3:
In file included from art/dex2oat/linker/image_writer.h:40:
art/compiler/driver/compiler_driver.h:99:18: error: use of undeclared identifier 'Compiler'
Compiler::Kind compiler_kind,
^
art/compiler/driver/compiler_driver.h:145:3: error: unknown type name 'Compiler'
Compiler* GetCompiler() const {
^
art/compiler/driver/compiler_driver.h:348:3: error: use of undeclared identifier 'Compiler'
Compiler::Kind GetCompilerKind() {
^
art/compiler/driver/compiler_driver.h:471:19: error: use of undeclared identifier 'Compiler'
std::unique_ptr<Compiler> compiler_;
^
art/compiler/driver/compiler_driver.h:472:3: error: use of undeclared identifier 'Compiler'
Compiler::Kind compiler_kind_;
^
5 errors generated.
...
ninja: build stopped: subcommand failed.
10:22:23 ninja failed with: exit status 1
#### failed to build some targets (01:49:21 (hh:mm:ss)) ####
Looking at it, the compiler complains that the class 'Compiler' is not defined in the 'compiler_driver.h' file. However looking at this file, it includes the 'compiler.h' which contains the Compiler class. Has anyone ever experienced this error, and is there any way to fix it?