Error building Angular CLI
There are two possible solutions for your problem:
a) Use correct relative paths
This is described here: https://stackoverflow.com/a/48028980/5816097
Use ./membros/membro.module#MembroModule instead of app/membros/membro.module#MembroModule.
b) Provide baseUrl in your compilerOptions
In your src/tsconfig.app.json add baseUrl: "./" under compilerOptions:
{ ..., "compilerOptions": { ..., baseUrl: "./" }}