[bug] ERROR: Error in generator 'BazelDeps': encoding without a string argument

[mohabouje]

I've been using the bazel generator without issues. I want to integrate dear-imgui with a GLFW/GLEW backend but it keeps failing. I've attached a simple conanfile with the configuration I'm using:

Environment Details (include every applicable attribute)

• Operating System+version: Fedora release 34 (Thirty Four)
• Compiler+version: gcc (GCC) 11.0.1 20210324 (Red Hat 11.0.1-0)
• Conan version: Conan version 1.44.1
• Python version: Python 3.9.2

Steps to reproduce (Include if Applicable)

from conans import ConanFile
from conan.tools.google import BazelToolchain, BazelDeps


class ExampleConanIntegration(ConanFile):
    name = "example"
    version = "0.0.1"
    generators = ['BazelDeps', 'BazelToolchain']
    requires = [
        'glew/2.2.0'
    ]

    def configure(self):
          pass

    def imports(self):
          pass

Then run:

conan install . --build=missing -s compiler=gcc -s compiler.version=11 -s compiler.libcxx=libstdc++11 -s build_type=Debug

Logs (Executed commands with output) (Include/Attach if Applicable)

Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Debug
compiler=gcc
compiler.libcxx=libstdc++11
compiler.version=11
os=Linux
os_build=Linux
[options]
[build_requires]
[env]

conanfile.py (tijara-conan-integration/0.0.1): Installing package
Requirements
    glew/2.2.0 from 'conancenter' - Cache
    glu/system from 'conancenter' - Cache
    opengl/system from 'conancenter' - Cache
Packages
    glew/2.2.0:44741af961cbe3bae7bd261b66459e5b6dc65693 - Cache
    glu/system:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache
    opengl/system:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache

Installing (downloading, building) binaries...
opengl/system: Already installed!
glu/system: Already installed!
glew/2.2.0: Already installed!
conanfile.py (tijara-conan-integration/0.0.1): Generator txt created conanbuildinfo.txt
conanfile.py (tijara-conan-integration/0.0.1): WARN: Using the new toolchains and generators without specifying a build profile (e.g: -pr:b=default) is discouraged and might cause failures and unexpected behavior
conanfile.py (tijara-conan-integration/0.0.1): Generator 'BazelDeps' calling 'generate()'
ERROR: Error in generator 'BazelDeps': encoding without a string argument

[memsharded]

Thanks for reporting, with easy to reproduce instructions. I have managed to reproduce and submitted a quick fix in #10472, trying to get it for 1.45 tomorrow. Certainly the bazel integration is very preliminary at the moment, it is missing functionality and can have bugs. Please keep the feedback coming!

[memsharded]

#10472 merged, to be released 1.45