# error in build **URL:** \ **Category:** How-to Discussions\ **Created:** [January 19, 2017, 8:22pm UTC](https://forums.fusetools.com/t/error-in-build/3277 "2017-01-19T20:22:20Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Aleme\_Gabriel](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/aleme_gabriel/32/477_2.png) [@Aleme\_Gabriel](https://forums.fusetools.com/u/Aleme_Gabriel)\ **Post date:** [January 19, 2017, 8:22pm UTC](https://forums.fusetools.com/t/error-in-build/3277/1 "2017-01-19T20:22:20Z")
-release-sign: [echo] Signing final apk… (unknown): E0200: Android build failed (9:44) pls how do i solve this ---
**Author:** ![Sebastian\_Reinhard](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/sebastian_reinhard/32/513_2.png) [@Sebastian\_Reinhard](https://forums.fusetools.com/u/Sebastian_Reinhard)\ **Post date:** [January 19, 2017, 8:25pm UTC](https://forums.fusetools.com/t/error-in-build/3277/2 "2017-01-19T20:25:20Z")
Hi! Have you followed the steps outlined in our [signing guide](https://www.fusetools.com/docs/preview-and-export/signing)? ---
**Author:** ![Aleme\_Gabriel](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/aleme_gabriel/32/477_2.png) [@Aleme\_Gabriel](https://forums.fusetools.com/u/Aleme_Gabriel)\ **Post date:** [January 19, 2017, 8:59pm UTC](https://forums.fusetools.com/t/error-in-build/3277/3 "2017-01-19T20:59:43Z")
$ uno build --target=Android --configuration=Release Uno 0.43.8 (build 4429) Windows 8.1 x64 33d72e9 Configuring (2.6 s) Compiling syntax tree (8.8 s) Generating code and data (58.5 s) Building Android app 1/2: libstockIT.so 2/2: stockIT.apk BUILD FAILED C:\Android\sdk\tools\ant\build.xml:1135: The following error occurred while executing this line: C:\Android\sdk\tools\ant\build.xml:1147: Cannot recover key Total time: 1 minute 32 seconds ## 1/2: libstockIT.so BootstrapperImpl\_Android.cpp \_root.g.cpp \_root.CreateItem.cpp \_root.CreateUser.cpp \_root.HomePage.Template.cpp \_root.HomePage.cpp \_root.HorizontalLine.cpp \_root.Icon.cpp \_root.InputText.cpp \_root.LoginScreen.cpp \_root.MainView.Template.cpp \_root.MainView.Template1.cpp \_root.MainView.Template2.cpp \_root.MainView.Template3.cpp \_root.MainView.Template4.cpp \_root.MainView.cpp \_root.Operation.cpp \_root.ProductInput.cpp \_root.ProductText.cpp \_root.Seperator.cpp \_root.stockIT\_bundle.cpp \_root.stockIT\_FuseControlsShape\_Color\_Property.cpp \_root.stockIT\_FuseControlsTextControl\_Value\_Property.cpp \_root.stockIT\_FuseControlsTextInputControl\_Value\_Property.cpp \_root.stockIT\_FuseDrawingSolidColor\_Color\_Property.cpp \_root.stockIT\_FuseElementsElement\_Opacity\_Property.cpp \_root.stockIT\_FuseReactiveEach\_Items\_Property.cpp \_root.UpdateItem.cpp \_root.WhiteTextInput.cpp OpenGL.g.cpp Uno.g.cpp Uno.Collections.g.cpp Uno.Compiler.ExportTargetInterop.Foreign.Android.g.cpp Uno.Diagnostics.g.cpp Uno.Graphics.g.cpp Uno.IO.g.cpp Uno.Platform.g.cpp Uno.Platform2.g.cpp Uno.Runtime.Implementation.g.cpp Uno.Runtime.Implementation.Internal.g.cpp Uno.Runtime.Implementation.ShaderBackends.OpenGL.g.cpp Uno.Text.g.cpp Uno.Threading.g.cpp Uno.Time.g.cpp Uno.Time.Calendars.g.cpp Uno.Time.Text.g.cpp Uno.UX.g.cpp Uno.Geometry.g.cpp Uno.Net.g.cpp Uno.Net.Sockets.g.cpp Uno.Net.Http.g.cpp Uno.Net.Http.Implementation.g.cpp Java.g.cpp Android.g.cpp Android.Base.g.cpp Android.Base.Primitives.g.cpp Android.Base.Types.g.cpp Android.Base.Wrappers.g.cpp Android.com.fuse.ExperimentalHttp.g.cpp Fuse.g.cpp Fuse.Platform.g.cpp Fuse.Internal.g.cpp Fuse.Internal.Drawing.g.cpp Fuse.Animations.g.cpp Fuse.Preview.g.cpp Fuse.Input.g.cpp Fuse.Reactive.g.cpp Fuse.Reactive.FuseJS.g.cpp Fuse.Resources.g.cpp Fuse.Scripting.g.cpp Fuse.Scripting.V8.g.cpp Fuse.Scripting.V8.Simple.g.cpp Fuse.Motion.g.cpp Fuse.Motion.Simulation.g.cpp Fuse.Drawing.g.cpp Fuse.Drawing.Internal.g.cpp Fuse.Drawing.Primitives.g.cpp Fuse.Triggers.g.cpp Fuse.Triggers.Actions.g.cpp Fuse.Elements.g.cpp Fuse.Elements.Internal.g.cpp Fuse.Effects.g.cpp Fuse.Controls.g.cpp Fuse.Controls.Native.g.cpp Fuse.Controls.Native.Android.g.cpp Fuse.Controls.Graphics.g.cpp Fuse.Controls.NavigationInternal.g.cpp Fuse.Controls.VideoImpl.g.cpp Fuse.Controls.VideoImpl.Android.g.cpp Fuse.Gestures.g.cpp Fuse.Gestures.Internal.g.cpp Fuse.Navigation.g.cpp Fuse.Layouts.g.cpp Fuse.Android.g.cpp Fuse.Android.Controls.g.cpp Fuse.Android.Controls.WebViewUtils.g.cpp Fuse.FileSystem.g.cpp Fuse.Selection.g.cpp Fuse.Storage.g.cpp Fuse.WebSocket.g.cpp Experimental.Http.g.cpp Experimental.Http.Internal.g.cpp Experimental.Cache.g.cpp Experimental.TextureLoader.g.cpp Neovisionaries.g.cpp Polyfills.Window.g.cpp FuseJS.g.cpp Uno/\_invoke.cpp Uno/\_main.cpp Uno/Memory.cpp Uno/ObjectModel.cpp Uno/Support.cpp Uno/Base64.cpp Uno/JNIHelper.cpp Uno/Activity/Platform2.cpp Uno/Activity/AApplication.cpp Uno/Activity/EntryPoints.cpp Uno/Graphics/GLHelper.cpp ## 2/2: stockIT.apk Buildfile: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\build.xml -set-mode-check: -set-release-mode: -release-obfuscation-check: [echo] proguard.config is ${proguard.config} -pre-build: -check-env: [checkenv] Android SDK Tools Revision 25.2.2 [checkenv] Installed at C:\Android\sdk -setup: [echo] Project Name: stockIT [gettype] Project Type: Application -build-setup: [getbuildtools] Using latest Build Tools: 25.0.0 [echo] Resolving Build Target for stockIT… [gettarget] Project Target: Android 6.0 [gettarget] API level: 23 [echo] ---------- [echo] Creating output directories if needed… [mkdir] Created dir: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res [mkdir] Created dir: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\rsObj [mkdir] Created dir: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\rsLibs [mkdir] Created dir: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\gen [mkdir] Created dir: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\classes [mkdir] Created dir: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\dexedLibs [echo] ---------- [echo] Resolving Dependencies for stockIT… [dependency] Library dependencies: [dependency] No Libraries [dependency] [dependency] ------------------ [echo] ---------- [echo] Building Libraries with ‘release’… [subant] No sub-builds to iterate on -code-gen: [mergemanifest] Merging AndroidManifest files into one. [mergemanifest] Manifest merger disabled. Using project manifest only. [echo] Handling aidl files… [aidl] No AIDL files to compile. [echo] ---------- [echo] Handling RenderScript files… [echo] ---------- [echo] Handling Resources… [aapt] Generating resource IDs… [echo] ---------- [echo] Handling BuildConfig class… [buildconfig] Generating BuildConfig class. -pre-compile: -compile: [javac] Compiling 102 source files to C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\classes [javac] Note: Some input files use or override a deprecated API. [javac] Note: Recompile with -Xlint:deprecation for details. -post-compile: -obfuscate: -dex: [dex] input: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\classes [dex] input: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\libs\nv-websocket-client.jar [dex] input: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\libs\android-support-v4.jar [dex] Pre-Dexing C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\libs\nv-websocket-client.jar -\> nv-websocket-client-07152738fe679b2a1db71cd934235c26.jar [dex] Pre-Dexing C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\libs\android-support-v4.jar -\> android-support-v4-0efd658ca8c5da2c76ad225df842621e.jar [dex] Converting compiled files and external libraries into C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\classes.dex… [dx] Merged dex #1 (166 defs/163.7KiB) [dx] Merged dex #2 (1153 defs/1127.0KiB) [dx] Merged dex #3 (53 defs/104.8KiB) [dx] Result is 1372 defs/1731.7KiB. Took 1.6s -crunch: [crunch] Crunching PNG Files in source dir: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\res [crunch] To destination dir: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res [crunch] Processing image to cache: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\res\mipmap-hdpi\icon.png =\> C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res\mipmap-hdpi\icon.png [crunch] (processed image to cache entry C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res\mipmap-hdpi\icon.png: 0% size of source) [crunch] Processing image to cache: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\res\mipmap-ldpi\icon.png =\> C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res\mipmap-ldpi\icon.png [crunch] (processed image to cache entry C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res\mipmap-ldpi\icon.png: 0% size of source) [crunch] Processing image to cache: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\res\mipmap-mdpi\icon.png =\> C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res\mipmap-mdpi\icon.png [crunch] (processed image to cache entry C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res\mipmap-mdpi\icon.png: 0% size of source) [crunch] Processing image to cache: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\res\mipmap-xhdpi\icon.png =\> C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res\mipmap-xhdpi\icon.png [crunch] (processed image to cache entry C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res\mipmap-xhdpi\icon.png: 0% size of source) [crunch] Processing image to cache: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\res\mipmap-xxhdpi\icon.png =\> C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res\mipmap-xxhdpi\icon.png [crunch] (processed image to cache entry C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res\mipmap-xxhdpi\icon.png: 0% size of source) [crunch] Processing image to cache: C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\res\mipmap-xxxhdpi\icon.png =\> C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res\mipmap-xxxhdpi\icon.png [crunch] (processed image to cache entry C:\stockIT\stockIT\build\Android\Release\stockIT\app\src\main\bin\res\mipmap-xxxhdpi\icon.png: 0% size of source) [crunch] Crunched 6 PNG files to update cache -package-resources: [aapt] Creating full resource package… -package: [apkbuilder] Current build type is different than previous build: forced apkbuilder run. [apkbuilder] Creating stockIT-release-unsigned.apk for release… -post-package: -release-prompt-for-password: -release-nosign: -release-sign: [echo] Signing final apk… (unknown): E0200: Android build failed (7:23) Build completed in 513.63 seconds 1 error ---
**Author:** ![Bent](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/bent/32/157_2.png) [@Bent](https://forums.fusetools.com/u/Bent)\ **Post date:** [January 19, 2017, 9:16pm UTC](https://forums.fusetools.com/t/error-in-build/3277/4 "2017-01-19T21:16:12Z")
Again, as Sebastian asked above: [have you followed the signing guide](https://www.fusetools.com/docs/preview-and-export/signing)? Just posting an error message with zero context isn’t very helpful, unfortunately. I suspect you are missing some signing steps, given that this error shows up: > BUILD FAILED C:\Android\sdk\tools\ant\build.xml:1135: The following error occurred while executing this line: C:\Android\sdk\tools\ant\build.xml:1147: Cannot recover key ---
**Author:** ![Aleme\_Gabriel](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/aleme_gabriel/32/477_2.png) [@Aleme\_Gabriel](https://forums.fusetools.com/u/Aleme_Gabriel)\ **Post date:** [January 19, 2017, 10:06pm UTC](https://forums.fusetools.com/t/error-in-build/3277/5 "2017-01-19T22:06:13Z")
solved. i changed the settings in the guide to the one i used with keytool ---
**Author:** ![Bent](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/bent/32/157_2.png) [@Bent](https://forums.fusetools.com/u/Bent)\ **Post date:** [January 19, 2017, 10:07pm UTC](https://forums.fusetools.com/t/error-in-build/3277/6 "2017-01-19T22:07:32Z")
It’s always a good idea to read the guides. 🙂 ---
**Author:** ![Aleme\_Gabriel](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/aleme_gabriel/32/477_2.png) [@Aleme\_Gabriel](https://forums.fusetools.com/u/Aleme_Gabriel)\ **Post date:** [January 19, 2017, 10:14pm UTC](https://forums.fusetools.com/t/error-in-build/3277/7 "2017-01-19T22:14:47Z")
thanks alot. fuse tools is better than react-native and nativescript . period !!