¡ôTry to make a template material with Shader Graph:
unity2019.1.7 or newer.
Have RTM in your project.
Install ShaderGraph and Lightweight render pipline with PackageManager.
Import example scene and fill your APIkeys.
download example scene: ShaderGraphExample201917
If you need RTM-basicmaterials in a LWRP project, try to make one with shaderGraph.