diff --git a/android/build.gradle b/android/build.gradle
index ec7f299a..820b3db7 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -111,29 +111,3 @@ task run(type: Exec) {
   def adb = path + "/platform-tools/adb"
   commandLine "$adb", 'shell', 'am', 'start', '-n', 'com.riiablo/com.riiablo.AndroidLauncher'
 }
-
-// sets up the Android Idea project, using the old Ant based build.
-idea {
-  module {
-    sourceDirs += file('src');
-    scopes = [COMPILE: [plus: [project.configurations.compile]]]
-
-    iml {
-      withXml {
-        def node = it.asNode()
-        def builder = NodeBuilder.newInstance();
-        builder.current = node;
-        builder.component(name: "FacetManager") {
-          facet(type: "android", name: "Android") {
-            configuration {
-              option(name: "UPDATE_PROPERTY_FILES", value: "true")
-            }
-          }
-        }
-      }
-    }
-  }
-}
-
-dependencies {
-}
diff --git a/core/build.gradle b/core/build.gradle
index b66fcb62..dee4a47f 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -16,7 +16,7 @@ project.ext.generatedSourceDir = file("$buildDir/generated-src/main/java/")
 sourceSets.main.java.srcDirs += generatedSourceDir
 idea.module.generatedSourceDirs += generatedSourceDir
 
-project.ext.annotationProcessorGeneratedSourcesDirectory = compileJava.options.generatedSourceOutputDirectory
+project.ext.annotationProcessorGeneratedSourcesDirectory = compileJava.options.generatedSourceOutputDirectory.getAsFile().get()
 sourceSets.main.java.srcDirs += annotationProcessorGeneratedSourcesDirectory
 idea.module.generatedSourceDirs += annotationProcessorGeneratedSourcesDirectory
 
diff --git a/excel/excel-test/build.gradle b/excel/excel-test/build.gradle
index 9af949ef..77852eca 100644
--- a/excel/excel-test/build.gradle
+++ b/excel/excel-test/build.gradle
@@ -1,5 +1,5 @@
-sourceSets.main.java.srcDirs += compileJava.options.generatedSourceOutputDirectory
-idea.module.generatedSourceDirs += compileJava.options.generatedSourceOutputDirectory
+sourceSets.main.java.srcDirs += compileJava.options.generatedSourceOutputDirectory.getAsFile().get()
+idea.module.generatedSourceDirs += compileJava.options.generatedSourceOutputDirectory.getAsFile().get()
 
 dependencies {
   annotationProcessor project(':excel:annotation-processor')
diff --git a/gradle.properties b/gradle.properties
index cb3348bd..a3a5e6b7 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,7 +2,7 @@ org.gradle.daemon=true
 org.gradle.jvmargs=-Xms512M -Xmx1G -XX:MaxPermSize=1G -XX:MaxMetaspaceSize=1G
 org.gradle.configureondemand=false
 
-androidBuildToolsPluginVersion=4.2.0
+androidBuildToolsPluginVersion=7.0.1
 flatbuffersPluginVersion=1.0.7
 gdxVersion=1.10.0
 gdxControllersVersion=2.2.0
diff --git a/table/integration/build.gradle b/table/integration/build.gradle
index 0ab6b368..9ccd5ad7 100644
--- a/table/integration/build.gradle
+++ b/table/integration/build.gradle
@@ -1,5 +1,5 @@
-sourceSets.main.java.srcDirs += compileJava.options.generatedSourceOutputDirectory
-idea.module.generatedSourceDirs += compileJava.options.generatedSourceOutputDirectory
+sourceSets.main.java.srcDirs += compileJava.options.generatedSourceOutputDirectory.getAsFile().get()
+idea.module.generatedSourceDirs += compileJava.options.generatedSourceOutputDirectory.getAsFile().get()
 
 dependencies {
   annotationProcessor project(':table:annotation-processor')