Issue 1:
I am using Android Studio 3.0, gradle version 4.3, and glide version 4.3.0. I am having the same issue with Glide version 4.2.0. I am getting an error whenever trying to run the project saying

Error:Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
> com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex.

The device version I am try to run the project on is a Nexus 5x, but I believe that is regardless of the issue since I can't even get the project to compile.

Here is my build.gradle file.

apply plugin: 'com.android.application'

android {
compileSdkVersion 26
buildToolsVersion "26.0.2"
defaultConfig {
applicationId "com.damianialex.chanreader"
minSdkVersion 15
targetSdkVersion 26
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
multiDexEnabled true //Add this
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}

repositories {
mavenCentral()
maven { url 'https://maven.google.com' }
}

dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:26.1.0'
compile 'com.android.support:design:26.1.0'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'
compile files('libs/picasso-2.5.2.jar')

compile 'com.github.bumptech.glide:glide:4.3.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.3.0'
}

Here's the full stack trace as well.

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:transformClassesWithMultidexlistForDebug'.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:100)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:70)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:63)
at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:88)
at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.run(DefaultTaskGraphExecuter.java:248)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:197)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:107)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:241)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:230)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.processTask(DefaultTaskPlanExecutor.java:124)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.access$200(DefaultTaskPlanExecutor.java:80)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:105)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:99)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute(DefaultTaskExecutionPlan.java:625)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask(DefaultTaskExecutionPlan.java:580)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:99)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
Caused by: java.lang.RuntimeException: java.io.IOException: Can't write [C:\Users\Alex\AndroidStudioProjects\ChanReader\app\build\intermediates\multi-dex\debug\componentClasses.jar] (Can't read [C:\Users\Alex\.gradle\caches\modules-2\files-2.1\com.github.bumptech.glide\glide\4.3.0\5ef2a3700ab3320576eab21ff504189e5a92a350\glide-4.3.0.jar(;;;;;;**.class)] (Duplicate zip entry [glide-4.3.0.jar:com/bumptech/glide/util/Synthetic.class]))
at com.android.builder.profile.Recorder$Block.handleException(Recorder.java:55)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:104)
at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:213)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$IncrementalTaskAction.doExecute(DefaultTaskClassInfoStore.java:173)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:134)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:121)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:122)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:197)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:107)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:111)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:92)
... 27 more
Caused by: java.io.IOException: Can't write [C:\Users\Alex\AndroidStudioProjects\ChanReader\app\build\intermediates\multi-dex\debug\componentClasses.jar] (Can't read [C:\Users\Alex\.gradle\caches\modules-2\files-2.1\com.github.bumptech.glide\glide\4.3.0\5ef2a3700ab3320576eab21ff504189e5a92a350\glide-4.3.0.jar(;;;;;;**.class)] (Duplicate zip entry [glide-4.3.0.jar:com/bumptech/glide/util/Synthetic.class]))
at proguard.OutputWriter.writeOutput(OutputWriter.java:187)
at proguard.OutputWriter.execute(OutputWriter.java:79)
at proguard.ProGuard.writeOutput(ProGuard.java:427)
at proguard.ProGuard.execute(ProGuard.java:175)
at com.android.build.gradle.internal.transforms.BaseProguardAction.runProguard(BaseProguardAction.java:61)
at com.android.build.gradle.internal.transforms.MainDexListTransform.shrinkWithProguard(MainDexListTransform.java:232)
at com.android.build.gradle.internal.transforms.MainDexListTransform.transform(MainDexListTransform.java:184)
at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:222)
at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:218)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:102)
... 39 more
Caused by: java.io.IOException: Can't read [C:\Users\Alex\.gradle\caches\modules-2\files-2.1\com.github.bumptech.glide\glide\4.3.0\5ef2a3700ab3320576eab21ff504189e5a92a350\glide-4.3.0.jar(;;;;;;**.class)] (Duplicate zip entry [glide-4.3.0.jar:com/bumptech/glide/util/Synthetic.class])
at proguard.InputReader.readInput(InputReader.java:188)
at proguard.InputReader.readInput(InputReader.java:158)
at proguard.OutputWriter.writeOutput(OutputWriter.java:176)
... 48 more
Caused by: java.io.IOException: Duplicate zip entry [glide-4.3.0.jar:com/bumptech/glide/util/Synthetic.class]
at proguard.io.JarWriter.getOutputStream(JarWriter.java:138)
at proguard.io.FilteredDataEntryWriter.getOutputStream(FilteredDataEntryWriter.java:106)
at proguard.io.FilteredDataEntryWriter.getOutputStream(FilteredDataEntryWriter.java:106)
at proguard.io.FilteredDataEntryWriter.getOutputStream(FilteredDataEntryWriter.java:92)
at proguard.io.ClassRewriter.read(ClassRewriter.java:68)
at proguard.io.FilteredDataEntryReader.read(FilteredDataEntryReader.java:87)
at proguard.io.FilteredDataEntryReader.read(FilteredDataEntryReader.java:87)
at proguard.io.FilteredDataEntryReader.read(FilteredDataEntryReader.java:87)
at proguard.io.JarReader.read(JarReader.java:65)
at proguard.io.DirectoryPump.readFiles(DirectoryPump.java:65)
at proguard.io.DirectoryPump.pumpDataEntries(DirectoryPump.java:53)
at proguard.InputReader.readInput(InputReader.java:184)
... 50 more

I have already made a stackoverflow post of the problem here as well for reference https://stackoverflow.com/questions/47086275/trying-to-build-android-project-with-glide-package-throws-unable-to-merge-dex.

Issue 2:
i use v4.7.1

gif is slow.. help me.