How to Build Build Eclipse (Android) projects on Unity 2020.3.1f1 ?

Questions & Answers
1

I build apk error when i setup buildOptions value to be buildOptions.AcceptExternalModificationsToPlayer
but if change buildOptions value to buildOptions.None then it is going correctly works.

build code:

public static void BuildPayer_AndroidParamsPack(string customPackName, string outputPath) {
    if (EditorUserBuildSettings.activeBuildTarget != BuildTarget.Android)
        Debug.Assert(EditorUserBuildSettings.SwitchActiveBuildTarget(BuildTargetGroup.Android, BuildTarget.Android));

    // BuildOptions options = BuildOptions.None; // build successful
    BuildOptions options = BuildOptions.AcceptExternalModificationsToPlayer; // build failure
    var name = string.Format("{0}unity2020_Client_{1}_{2}", customPackName, DateTime.Now.ToString("yyyy_MM_dd_HH_mm");
    BuildPipeline.BuildPlayer(GetScenePaths(), Path.Combine(outputPath, name), EditorUserBuildSettings.activeBuildTarget, options);
}

error:

InvalidOperationException: The build cannot be appended.
UnityEditor.BuildPipeline.BuildPlayer (System.String[] scenes, System.String locationPathName, System.String assetBundleManifestPath, UnityEditor.BuildTargetGroup buildTargetGroup, UnityEditor.BuildTarget target, UnityEditor.BuildOptions options, System.String[] extraScriptingDefines) (at <0c3742f371b24679bcaa6fcc508d0cca>:0)
UnityEditor.BuildPipeline.BuildPlayer (UnityEditor.BuildPlayerOptions buildPlayerOptions) (at <0c3742f371b24679bcaa6fcc508d0cca>:0)
UnityEditor.BuildPipeline.BuildPlayer (System.String[] levels, System.String locationPathName, UnityEditor.BuildTarget target, UnityEditor.BuildOptions options) (at <0c3742f371b24679bcaa6fcc508d0cca>:0)
EasyBuildScript.BuildPayer_AndroidParamsPack (System.String customPackName, System.String outputPath) (at Assets/Easy/Editor/EasyBuildScript.cs:501)
2

before run BuildPipeline.BuildPlayer command, set EditorUserBuildSettings.exportAsGoogleAndroidProject = true ;