MapViewPlugin.kt: (168, 34): Only safe (?.) or non-null asserted (!!.) calls are allowed on a nullable receiver of type Map<String, Any>?

[ZackPashkin]

Hi! Can you please help me, how to solve this problem. Thank you!

`tienen@tienen-B85M-D2V:/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/schoolofai_app-zack-merged$ flutter run
Using hardware rendering with device Android SDK built for x86. If
you get graphics artifacts, consider enabling software rendering
with "--enable-software-rendering".
Launching lib/main.dart on Android SDK built for x86 in debug
mode...
Initializing gradle... 0.8s
Resolving dependencies... 2.1s
Gradle task 'assembleDebug'...
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(168, 34): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(171, 36): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(172, 40): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(173, 37): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(174, 31): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(175, 28): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(177, 21): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(178, 66): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':map_view:compileDebugKotlin'.

Compilation error. See log for more details

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info
  or --debug option to get more log output. Run with --scan to get
  full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 8s

Gradle task 'assembleDebug'... Done 9.1s
Gradle task assembleDebug failed with exit code 1
tienen@tienen-B85M-D2V:/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/schoolofai_app-zack-merged$ flutter doctor -v[✓] Flutter (Channel dev, v0.10.1, on Linux, locale en_US.UTF-8)
• Flutter version 0.10.1 at /media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/tools/flutter
• Framework revision 6a3ff018b1 (3 weeks ago), 2018-10-18 18:38:26 -0400
• Engine revision 3860a43379
• Dart version 2.1.0-dev.7.1.flutter-b99bcfd309

[✓] Android toolchain - develop for Android devices (Android SDK 28.0.3)
• Android SDK at /media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/Android/Sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-28, build-tools 28.0.3
• ANDROID_HOME = /media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/Android/Sdk
• Java binary at: /media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/android-studio/jre/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
• All Android licenses accepted.

[✓] Android Studio (version 3.2)
• Android Studio at /media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/android-studio
• Flutter plugin version 30.0.1
• Dart plugin version 181.5656
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)

[✓] VS Code (version 1.28.2)
• VS Code at /usr/share/code
• Flutter extension version 2.20.0

[✓] Connected device (1 available)
• Android SDK built for x86 • emulator-5554 • android-x86 • Android 8.1.0 (API 27) (emulator)

• No issues found!`

[MariaMelnik]

Same error

[frmunozr10]

same error

[deepchandyadav]

Same error

[jithin-dev]

Same error

[Tran-Hoang-Lam]

Does this plugin still under development?

[matthewtsmith]

@Tran-Hoang-Lam No, please see the README

[Tran-Hoang-Lam]

@matthewtsmith Thanks, I just confuse because issue keep opening but no one answer or do anything.

[salmanDevj]

getting same error!! any solutions to this?

[ilham-bintang]

Same error

[jiadmiftx]

same error

[deligence]

same error

[aidooyaw1992]

Hi! Can you please help me, how to solve this problem. Thank you!

`tienen@tienen-B85M-D2V:/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/schoolofai_app-zack-merged$ flutter run
Using hardware rendering with device Android SDK built for x86. If
you get graphics artifacts, consider enabling software rendering
with "--enable-software-rendering".
Launching lib/main.dart on Android SDK built for x86 in debug
mode...
Initializing gradle... 0.8s
Resolving dependencies... 2.1s
Gradle task 'assembleDebug'...
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(168, 34): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(171, 36): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(172, 40): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(173, 37): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(174, 31): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(175, 28): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(177, 21): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?
e:
/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/
tools/flutter/.pub-cache/hosted/pub.dartlang.org/map_view-0.0.14/and
roid/src/main/kotlin/com/apptreesoftware/mapview/MapViewPlugin.kt:
(178, 66): Only safe (?.) or non-null asserted (!!.) calls are
allowed on a nullable receiver of type Map<String, Any>?

FAILURE: Build failed with an exception.

* What went wrong:
  Execution failed for task ':map_view:compileDebugKotlin'.

Compilation error. See log for more details

* Try:
  Run with --stacktrace option to get the stack trace. Run with --info
  or --debug option to get more log output. Run with --scan to get
  full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 8s

Gradle task 'assembleDebug'... Done 9.1s
Gradle task assembleDebug failed with exit code 1
tienen@tienen-B85M-D2V:/media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/schoolofai_app-zack-merged$ flutter doctor -v[✓] Flutter (Channel dev, v0.10.1, on Linux, locale en_US.UTF-8)
• Flutter version 0.10.1 at /media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/tools/flutter
• Framework revision 6a3ff018b1 (3 weeks ago), 2018-10-18 18:38:26 -0400
• Engine revision 3860a43379
• Dart version 2.1.0-dev.7.1.flutter-b99bcfd309

[✓] Android toolchain - develop for Android devices (Android SDK 28.0.3)
• Android SDK at /media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/Android/Sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-28, build-tools 28.0.3
• ANDROID_HOME = /media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/Android/Sdk
• Java binary at: /media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/android-studio/jre/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)
• All Android licenses accepted.

[✓] Android Studio (version 3.2)
• Android Studio at /media/tienen/c139a775-f6cd-4467-898d-bc3fd2ecccc0/zack/development/android-studio
• Flutter plugin version 30.0.1
• Dart plugin version 181.5656
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1136-b06)

[✓] VS Code (version 1.28.2)
• VS Code at /usr/share/code
• Flutter extension version 2.20.0

[✓] Connected device (1 available)
• Android SDK built for x86 • emulator-5554 • android-x86 • Android 8.1.0 (API 27) (emulator)

• No issues found!`

           val mapOptions = call.argument<Map<String, Any>>("mapOptions")
            val cameraDict = mapOptions!!["cameraPosition"] as Map<String, Any>
            initialCameraPosition = getCameraPosition(cameraDict)
            toolbarActions = getToolbarActions(call.argument<List<Map<String, Any>>>("actions"))
            showUserLocation = mapOptions!!["showUserLocation"] as Boolean
            showMyLocationButton = mapOptions!!["showMyLocationButton"] as Boolean
            showCompassButton = mapOptions!!["showCompassButton"] as Boolean
            hideToolbar = mapOptions!!["hideToolbar"] as Boolean
            mapTitle = mapOptions!!["title"] as String

            if (mapOptions!!["mapViewType"] != null) {
                val mappedMapType: Int? = mapTypeMapping.get(mapOptions!!["mapViewType"]);
                if (mappedMapType != null) mapViewType = mappedMapType;
            }

[aidooyaw1992]

copy and replace.
it worked for me

[wuilmerj24]

@aidooyaw1992 Hi
Where did you copy that code?