I want to make my mod use a login mod's API if the mod was exist.

What should I do to know whether the class/package of the API mod had been loaded?

(And my Mod need works without the API Mod loading, with only a small amount of code enabled)

Edited December 27, 20186 yr by themaw

Reflection.

how exactly depends on the API and what you’re using it for

Loader.isModLoaded("modname");

1 hour ago, Cadiboo said:

Reflection.

how exactly depends on the API and what you’re using it for

I'll try it.

If I want to import lib to my mod,what should I do to prevent the error which appeared when the 'gradle build' run?

1 hour ago, Corey said:

Loader.isModLoaded("modname");

This is helpful.But I need more imformation.

Edited December 27, 20186 yr by themaw

2 hours ago, themaw said:

the error which appeared when the 'gradle build' run

You haven't shown us any errors

10 hours ago, Corey said:

You haven't shown us any errors

It's my fault.

Now I had fix this by edit the build.gradle

I forget to edit the depencies

dependencies {
    // you may put jars on which you depend on in ./libs
    // or you may define them like so..
    //compile "some.group:artifact:version:classifier"
    //compile "some.group:artifact:version"
    compile files('libs/Ecomoylite.jar')
    compile files('libs/FlexibleLogin.jar')
    compile files('libs/SpongeApi.jar')
    // real examples
    //compile 'com.mod-buildcraft:buildcraft:6.0.8:dev'  // adds buildcraft to the dev env
    //compile 'com.googlecode.efficient-java-matrix-library:ejml:0.24' // adds ejml to the dev env

    // the 'provided' configuration is for optional dependencies that exist at compile-time but might not at runtime.
    //provided 'com.mod-buildcraft:buildcraft:6.0.8:dev'

    // the deobf configurations:  'deobfCompile' and 'deobfProvided' are the same as the normal compile and provided,
    // except that these dependencies get remapped to your current MCP mappings
    //deobfCompile 'com.mod-buildcraft:buildcraft:6.0.8:dev'
    //deobfProvided 'com.mod-buildcraft:buildcraft:6.0.8:dev'

    // for more info...
    // http://www.gradle.org/docs/current/userguide/artifact_dependencies_tutorial.html
    // http://www.gradle.org/docs/current/userguide/dependency_management.html

}

(Yeah,they are sponge and plugin,but now I can import them as mod,and with out build error)

compile files('libs/

this is done automatically for you, thats why the /libs/ folder exists