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Unable to load firebase Init provider - android studio

I cant solve this bug for many days. It happens only when I connect firebase realtime database.
Process: com.bae.dialogflowbot, PID: 4982
java.lang.RuntimeException: Unable to get provider com.google.firebase.provider.FirebaseInitProvider: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.provider.FirebaseInitProvider" on path: DexPathList[[zip file "/data/app/~~RkMsTUa-PZYOQLsQ7fP8Uw==/com.bae.dialogflowbot-m8QxV2lnB1WTxOUZJ-hy0w==/base.apk"],nativeLibraryDirectories=[/data/app/~~RkMsTUa-PZYOQLsQ7fP8Uw==/com.bae.dialogflowbot-m8QxV2lnB1WTxOUZJ-hy0w==/lib/x86, /system/lib, /system_ext/lib]]
at android.app.ActivityThread.installProvider(ActivityThread.java:7244)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:6780)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6697)
at android.app.ActivityThread.access$1300(ActivityThread.java:237)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1913)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
**Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.provider.FirebaseInitProvider" on path: DexPathList[**[zip file "/data/app/~~RkMsTUa-PZYOQLsQ7fP8Uw==/com.bae.dialogflowbot-m8QxV2lnB1WTxOUZJ-hy0w==/base.apk"],nativeLibraryDirectories=[/data/app/~~RkMsTUa-PZYOQLsQ7fP8Uw==/com.bae.dialogflowbot-m8QxV2lnB1WTxOUZJ-hy0w==/lib/x86, /system/lib, /system_ext/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:207)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)

I tried this and it seemed to work. Go to your gradle and comment out this line:
implementation platform('com.google.firebase:firebase-bom:29.0.3')
Use this one:
implementation platform('com.google.firebase:firebase-bom:27.0.0')
I had FMS working on one project and tried to fold it back into another, but got the same error. After a bunch of unsuccessful searches, I tried making changes to each setting to mirror the first project and this one seemed to work.

Trying to test my android application on firebase test lab but it keeps crashing

hope everyone is doing well.
I am trying to test my application on firebase however it keeps crashing. Firstly, I tried to test it and got the following error:
java.lang.RuntimeException: Unable to get provider com.google.firebase.provider.FirebaseInitProvider: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.provider.FirebaseInitProvider" on path: DexPathList[[zip file "/data/app/com.example.leonapplication-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.leonx.application-1/lib/arm, /data/app/com.example.leonx.application-1/base.apk!/lib/armeabi-v7a, /vendor/lib, /system/lib]]
After doing some research I found out about Multidex and configured my app towards this however after trying to test it again, I get a new error:
java.lang.RuntimeException: Unable to instantiate application android.support.multidex.MultiDexApplication: java.lang.ClassNotFoundException: Didn't find class "android.support.multidex.MultiDexApplication" on path: DexPathList[[zip file "/data/app/com.example.leonx.application-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.leonx.application-1/lib/arm, /data/app/com.example.leonx.application-1/base.apk!/lib/armeabi-v7a, /vendor/lib, /system/lib]]
Does anyone have any advice on how to tackle this? App is running fine on the emulator and on my phone. I have also cleaned the project however still getting the above error
Many thanks, Leon

Java: Including jar in classpath

I created a Java project in Eclipse and created a simple class with a main method.
Problem: when I run the program(without any server etc), I get the following error:
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/codec/DecoderException
at autoPEC.main(autoPEC.java:6)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.codec.DecoderException
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 1 more
What I tried to solve the problem: included path to commons-codec.jar in the environment variables JAVA_HOME by putting a semicolon after the jdk path
Result: class still does not run
I think that the problem could be that I am not correctly including the classpath. How should I do this?

Google the missing jar and include it in the Java Build path

Reason for this exception is missing of a jar.
please add the jar(Commons-codec.jar) file needed for this org.apache.commons.codec.DecoderException
Download it from here
http://commons.apache.org/proper/commons-codec/download_codec.cgi
then put it in your classpath

Error - Didn't find class "javax.naming.ldap.LdapName"

I'm using unirest to get a camfind result.
The full error log :
04-14 18:24:39.574 1880-2300/projectco.project E/AndroidRuntime﹕ FATAL EXCEPTION: Thread-120
Process: projectco.project, PID: 1880
java.lang.NoClassDefFoundError: Failed resolution of: Ljavax/naming/ldap/LdapName;
at com.mashape.relocation.conn.ssl.AbstractVerifier.extractCNs(AbstractVerifier.java:277)
at com.mashape.relocation.conn.ssl.AbstractVerifier.getCNs(AbstractVerifier.java:265)
at com.mashape.relocation.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:157)
at com.mashape.relocation.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:140)
[...] more "at"s
at bookshotco.bookshot2.MainActivity$1.run(MainActivity.java:100)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.ClassNotFoundException: Didn't find class "javax.naming.ldap.LdapName" on path: DexPathList[[zip file "/data/app/projectco.project-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
[..]
Suppressed: java.lang.ClassNotFoundException: javax.naming.ldap.LdapName
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 23 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
Few people had this problem and even fewer solved it, most of the times using stuff to do with compatibility of different versions which did not work for me.
The emulator I'm using is up to date (nexus 5 on api 21).

I've recently had the same issue and it was only happening in obfuscated code. So keeping the whole org.apache package in Proguard rules solved the issue.
# Keep Apache Package, since it cannot find some of the classes and throws Verify Error
-keep class org.apache.** {*;}

This error can also be caused by requiring ssl (i.e., "useSSL") when connecting to a remote server and NOT having verifyServerCertificate and trustServerCertificate defined as below, and also not having a server certificate defined properly. The system is trying to use an LDAP authentication process, thus the error.
val info = Properties()
info.setProperty("useSSL", "true")
info.setProperty("requireSSL", "true")
info.setProperty("user", user)
info.setProperty("password", password)
info.setProperty("verifyServerCertificate", "false")
info.setProperty("trustServerCertificate", "true")
Also, if you define:
trustServerCertificate=false
then you may need to set the following (unless everything matches up):
disableSslHostnameVerification=true

using card view and recyclerView in eclipse

I'm trying to use the new android component (cardView and recyclerView). but I work with eclipse and I try with a different way but it's not work for me.how should i do ?
Error:
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.widget.RecyclerView" on path: DexPathList[[zip file "/data/app/com.test.cardviewexemple-1.apk"],nativeLibraryDirectories=[/data/app-lib/com.test.cardviewexemple-1, /vendor/lib, /system/lib]].