Program type already present: org.apache.http.auth

问题:

I used Picasso as dependency for both the my App project and the chat library

Here is the error I'm facing while compiling the code:

Program type already present: org.apache.http.auth.AuthSchemeFactory Message{kind=ERROR, text=Program type already present:

org.apache.http.auth.AuthSchemeFactory, sources=[Unknown source file], tool name=Optional.of(D8)}

so how to use same dependency for two project?

---- Root project----  
                    |
                    |
                    ---app
                    |
                    ---chat library

EDIT Saturday - 2018 14 April

in app>libs folder the following jar files exist:

• httpclient-4.3.6
• httpcore-4.3.3
• httpmime-4.3.6

回答1:

I had have the same issue. As the first you can see that a new dexer called D8 is running. It seems to be still experimental so you can switch it off temporally in gradle.properties file by:

android.enableD8=false

See more details about D8 in a blog announcement

Then you can see more detailed error message which led me to following solution:

implementation("org.apache.oltu.oauth2:org.apache.oltu.oauth2.client:1.0.1") {
    exclude group: 'org.apache.oltu.oauth2', module: org.apache.oltu.oauth2.common'
}