我已经阅读了这个问题,并尝试了那里提到的解决方案,但是只有在我将应用程序发布到远程服务器的IIS后才会出现此异常.在我的本地计算机的IIS中,应用程序运行正常.我不知道是什么原因导致该服务器出现此异常:
Server Error in '/' Application.
A route named 'HelpPage_Default' is already in the route collection. Route names must be unique.
Parameter name: name
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: A route named 'HelpPage_Default' is already in the route collection. Route names must be unique.
Parameter name: name
Source Error: …当我在Android studio中使用USB在真实设备中测试时,我的应用程序工作正常.但是当我将apk发送到另一台设备并安装在那里时,它无法正常工作.App得到崩溃.我没有找到任何正确的方法来解决问题.错误如下:
FATAL EXCEPTION: main Process: com.w3xplorers.cmch,PID: 17715 java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.w3xplorers.cmch/com.w3xplorers.cmch.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.w3xplorers.cmch.MainActivity" on path: DexPathList[[zip file "/data/app/com.w3xplorers.cmch-1/base.apk"],nativeLibraryDirectories=[/data/app/com.w3xplorers.cmch-1/lib/arm, /system/lib, /vendor/lib, system/vendor/lib, system/vendor/lib/egl, system/lib/hw]]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2395)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2544)
at android.app.ActivityThread.access$900(ActivityThread.java:150)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1394)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:168)
at android.app.ActivityThread.main(ActivityThread.java:5845)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:797)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:687)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.w3xplorers.cmch.MainActivity" on path: DexPathList[[zip file "/data/app/com.w3xplorers.cmch-1/base.apk"],nativeLibraryDirectories=[/data/app/com.w3xplorers.cmch-1/lib/arm, /system/lib, /vendor/lib, system/vendor/lib, system/vendor/lib/egl, system/lib/hw]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.Instrumentation.newActivity(Instrumentation.java:1085)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2385)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2544) …我正在使用auth0-java客户端库与auth0 v2服务交互，我的代码在我的开发环境中编译并运行良好，但是当我在另一个测试环境中部署该构建时，它会引发以下异常：
java.lang.NoSuchMethodError:com.fasterxml.jackson.databind.ObjectMapper.readerFor(Lcom/fasterxml/jackson/databind/JavaType;)Lcom/fasterxml/jackson/databind/ObjectReader;
at com.auth0.json.mgmt.users.UsersPageDeserializer.getArrayElements(UsersPageDeserializer.java:52)
at com.auth0.json.mgmt.users.UsersPageDeserializer.deserialize(UsersPageDeserializer.java:30)
at com.auth0.json.mgmt.users.UsersPageDeserializer.deserialize(UsersPageDeserializer.java:15)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3562)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2597)
at com.auth0.net.CustomRequest.parseResponse(CustomRequest.java:63)
at com.auth0.net.BaseRequest.execute(BaseRequest.java:37)
at com.myapp.security.Auth0Service.getUserByEmail(Auth0Service.java:246)
at com.myapp.security.Auth0Service.checkForExsistingAuth0Account(Auth0Service.java:266)
at com.myapp.security.AdminUILayout.lambda$launchProgressUpdater$0(AdminUILayout.java:293)
at java.lang.Thread.run(Thread.java:745)
我已经通过几个stackover流的问题，如走这 并试图清理.m2/repository/com/fasterxml该测试环境的文件夹，但cloudn't这里解决了没有这样的方法错误是我的POM文件及以下相关代码给出：
代码
public User getUserByEmail(String email){
UserFilter filter = new UserFilter();
filter.withQuery(email);
Request<UsersPage> request = mgmt.users().list(filter);
try {
UsersPage response = request.execute();
for (User u:response.getItems()) {
if (u.getEmail().equals(email)) {
return u;
}
}
} catch (APIException exception) {
// api error
System.out.println("APIException:::::"+exception.getDescription());
} catch (Auth0Exception exception) { …