Error:Cause: unable to find valid certification path to requested target

Question

I got the following Error in android Studio 2.2.3 when I sync gradle.

Error:Cause: unable to find valid certification path to requested target

How can I fix this issue

I am Adding my Gradle file also

apply plugin: 'com.android.application' android { compileSdkVersion 25 buildToolsVersion "25.0.2" defaultConfig { applicationId "com.sample.myapplication" minSdkVersion 16 targetSdkVersion 22 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { exclude group: 'com.android.support', module: 'support-annotations' }) compile 'com.android.support:appcompat-v7:23.4.0' compile 'com.android.support:design:23.4.0' compile 'com.android.support:palette-v7:23.4.0' testCompile 'junit:junit:4.12' // FireBase compile 'com.google.firebase:firebase-messaging:9.0.0' }//Add this line apply plugin: 'com.google.gms.google-services'

and the project Level Gradle File

buildscript { repositories { jcenter() } dependencies { classpath 'com.android.tools.build:gradle:2.2.3' classpath 'com.google.gms:google-services:3.0.0' } } allprojects { repositories { mavenCentral() jcenter{ url "http://jcenter.bintray.com/" } maven { url "https://jitpack.io" } } } task clean(type: Delete) { delete rootProject.buildDir }

I had this issue before, It go somehow solved by properly exiting the application, restarting pc, and then open app and rebuild graddle. Something to with local cache issue. app i mean android studio. — Smit
– Smit, Commented Feb 23, 2017 at 12:24

Rajat Anand · Accepted Answer · 2017-06-14 16:24:06Z

120

This problem might be due to some restricted internet connections... If you are installing build tools on some restricted network, the required certificates might not install... So try changing the network connection.... Worked for me.....

answered Jun 14, 2017 at 16:24

Rajat Anand

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7 Comments

Vinod Kumar Chauhan Over a year ago

Worked for me.... Earlier, I was working on my University network but I changed to my smartphone network, it worked for me.

Beezer Over a year ago

Yep this did it for me too. I was on a corporate network and when I switched it worked.

Ivan Leong Over a year ago

Had the same issue, turns out I had proxy turned on. Disabled it and it worked.

yoAlex5 Over a year ago

Restart Charles Proxy and disable proxying, ssl and recording

developer_hatch Over a year ago

I had my VPN on... that was my issue, I turned it off and now it's working

|

Melquiades · Accepted Answer · 2024-11-29 16:35:32Z

I faced the same issue, but fixed it by adding

maven { url "http://jcenter.bintray.com"}

in the project Level Gradle File

buildscript { repositories { jcenter() maven { url "http://jcenter.bintray.com"} } dependencies { classpath 'com.android.tools.build:gradle:2.2.3' classpath 'com.google.gms:google-services:3.0.0' } } allprojects { repositories { mavenCentral() jcenter{ url "http://jcenter.bintray.com/" } maven { url "https://jitpack.io" } } } task clean(type: Delete) { delete rootProject.buildDir }

ok but why did this work? whats happening here thats causing this issue?
Mine was an issue with McAffee. I had to disable it before gradle would sync properly.

Carlos B. Flores · Accepted Answer · 2020-11-25 01:59:07Z

"Unable to find valid certification path to requested target"

If you are getting this message, you probably are behind a Proxy on your company, which probably is signing all request certificates with your company root CA certificate, this certificate is trusted only inside your company, so Android Studio cannot validate any certificate signed with your company certificate as valid, so, you need to tell Android Studio to trust your company certificate, you do that by adding your company certificate to Android Studio truststore.

(I'm doing this on macOS, but should be similar on Linux or Windows)

First, you need to save your company root CA certificate as a file: you can ask this certificate to your IT department, or download it yourself, here is how. Open your browser and open this url, for example, https://jcenter.bintray.com/ or https://search.maven.org/, click on the lock icon and then click on Show certificate

On the popup window, to save the root certificate as a file, make sure to select the top level of the certificates chain (the root cert) and drag the certificate image to a folder/directory on your disk drive. It should be saved as a file as, for example: my-root-ca-cert.cer, or my-root-ca-cert.pem

Second, let's add this certificate to the accepted Server Certificates of Android Studio:

On Android Studio open Preferences -> Tools -> Server Certificates, on the box Accepted certificates click the plus icon (+), search the certificate you saved previously and click Apply and OK

Third, you need to add the certificate to the Android Studio JDK truststore (Gradle use this JDK to build the project, so it's important):

In Android Studio open File -> Project Structure -> SDK Location -> JDK Location

Copy the path of JDK Location, and open the Terminal, and change your directory to that path, for example, execute:

cd /Applications/Android\ Studio.app/Contents/jre/jdk/Contents/Home/

(don't forget to scape the whitespace, "\ ")

Now, to import the certificate to the truststore, execute:

./bin/keytool -importcert -file /path/to/your/certificate/my-root-ca-cert.cer -keystore ./jre/lib/security/cacerts -storepass changeit -noprompt

Finally, restart Android Studio, or better click File -> Invalidate Caches / Restart

Done, you should be able to build your project now.

Broken images didn't help any, but this answer DID fix my problem. I initially skipped the last step, which is what I truly needed.
in case you use jdk 11 this: ./jre/lib/security/cacerts should be: ./lib/security/cacerts
Good explanation and even better solution that works even in 2023. Thanks a lot! FYI, if anybody's using Android Studio Preview versions like me, the path to keystore is then: lib/security/cacerts
you can get your cacerts path in windows by using "%JAVA_HOME%\jre\lib\security\cacerts"
on my mac with m3 there wasn't jre in the path instead it was jbr so the last two step had to be modified -> cd /Applications/Android Studio.app/Contents/jbr/Contents/Home and -> ./bin/keytool -importcert -file path/to/file.cer -keystore lib/security/cacerts -storepass changeit -noprompt

Community · Accepted Answer · 2017-05-23 11:47:31Z

I have faced this problem with Maven build earlier. It was occurring because I was working in a restricted office network. You need to import required certificate in your keystore.

Follow Steps in the answer of below question "unable to find valid certification path to requested target", but browser says it's OK

(use double quotes for fienames/pathnames)

Note: I am not able to find now exact source from where I solved problem, if I get it, I will update it

for Intellij Idea: intellij-support.jetbrains.com/hc/en-us/community/posts/…

Александр М · Accepted Answer · 2017-10-26 10:52:13Z

13

Import your company certificate at Tools->Android->SDK Manager->Tools->Server Certificates

answered Oct 26, 2017 at 10:52

Александр М

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3 Comments

dardo Over a year ago

This is probably the correct answer, just make sure to restart IntelliJ after setting the cert.

IfOnly Over a year ago

I added certificate from bintray.com/bintray/jcenter. Restart studio and build was successful.

JPM Over a year ago

@IfOnly Can you link to where to get the cert for jcenter?

DBPaul · Accepted Answer · 2020-08-18 13:08:27Z

If you are running behind a corporate proxy with SSL interception, you will need to follow these steps to trust your proxy certificate for HTTPS:

In Android Studio, Open File -> Settings
- In Tools -> Server Certificates
  - Tick ‘Accept non-trusted certificates automatically’
  - Also click the ‘+’ and manually add the corporate proxy root certificate.
- In Appearance and Behaviour -> System Settings -> HTTP Proxy
  - Set your corporate proxy URL and port details
Download KeyStore Explorer: http://keystore-explorer.org/downloads.html
In KeyStore Explorer (run as admin), open the Android Studio JRE certificate store: C:\Program Files\Android\Android Studio\jre\jre\lib\security\cacerts
- The password should be ‘changeit’
- Import the corporate proxy root certificate, and save.
In Android Studio, select File -> Invalidate Cache and Restart

Thanks man, it solved my problem, this was exactly the problem I was experiencing, due to internal proxy restrictions.

ozanurkan · Accepted Answer · 2019-06-11 07:42:27Z

9

If you re in your office ,use your smartphone network. I think It will work.

answered Jun 11, 2019 at 7:42

ozanurkan

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3 Comments

dhamini poornachandra Over a year ago

This saved my day.

Phil Over a year ago

This is NOT a solution

ozanurkan Over a year ago

it worked for me ,cause my company network have more security

TheMRaju · Accepted Answer · 2018-10-02 04:16:57Z

I just encountered the similar problem and found a series of steps did help me. Of course few of them is to Change the network to a stronger,better one.or if you have only one network then try Reconnecting to the network and then simply INVALIDATE/RESTART your android studio. If it still shows the error you need to add the "maven" in repositories and point it out to the link as shown below: maven { url "http://jcenter.bintray.com"}

Finally,Go to *File *Settings *Build,Execution and deployment *Gradle *Android Studio --------And check Enable maven repository option.

After that simply clean and rebuild your APP and you will be good to go.

The setting Android Studio > Enabled embeded marvin repository seems to finally make things work. Thanks.

Vijay · Accepted Answer · 2017-11-10 06:16:35Z

I had the same problem. I fixed it by removing/commenting proxy settings in gradle.properties. Check your gradle.properties, if you have some like this

systemProp.https.proxyPort=8080 systemProp.http.proxyHost=192.168.1.1 systemProp.https.proxyHost=192.168.1.1 systemProp.http.proxyPort=8080

comment it with #. Which will look like this

#systemProp.https.proxyPort=8080 #systemProp.http.proxyHost=192.168.1.1 #systemProp.https.proxyHost=192.168.1.1 #systemProp.http.proxyPort=8080

@Zoe yes, we can but what if we need in the future? Better option is comment.

Lance Samaria · Accepted Answer · 2022-10-18 17:06:38Z

Part of this answer by @Sadegh is what fixed it for me

Go to Gradle Scripts > gradle.properties

Enter these 6 lines in the gradle.properties file:

systemProp.http.proxyHost=fodev.org systemProp.http.proxyPort=8118 systemProp.http.nonProxyHosts=*.jitpack.io, *.maven.org systemProp.https.proxyHost=fodev.org systemProp.https.proxyPort=8118 systemProp.https.nonProxyHosts=*.jitpack.io, *.maven.org

To dig deeper into the issue, I went inside Android Studio (not your mac), at the bottom I opened Terminal and entered: ./gradlew build --warning-mode all

The exact problem was:

PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

geisterfurz007 · Accepted Answer · 2018-01-25 14:15:54Z

I missed this problem after update studio and gradle ,in the log file tips me some maven store has certificate problem.

I tried restart statudio as somebody suggestion but dose work; and somebody said we should set the jre environment ,but I doesn't know how to set it on Mac . So I tried restart Mac. and start studio I found this tips. enter image description here

so the problem is floating on the surface: solution: first step: restart computer ,there are too many problem after android studio update . second step:use the old gradle tool OR download the *pom and jar ,put in correct folder.

I missed the same problem when my colleague update studio but I haven't update . Then I update studio ，but the problem occurs again . **I tried a lot of solution until this solved my problem. **. My computer is Mac.
I missed the same problem again, all the solution description above doesn't work, then I closed Charles and restart studio , it's ok .

tasjapr · Accepted Answer · 2024-03-01 18:47:58Z

In my case, this error was caused by the Proxyman/Charles proxy tool. I fixed this by closing Proxyman, resetting the Android Studio cache and restarting the emulator. After that everything started working

Thank you. After I closed the charles and restarted the android studio the project started running

Sarvex · Accepted Answer · 2017-03-04 10:14:43Z

1

+50

You are using older version of libraries.

compile 'com.android.support:appcompat-v7:25.2.0' compile 'com.android.support:design:25.2.0' compile 'com.android.support:palette-v7:25.2.0' compile 'com.google.firebase:firebase-messaging:10.2.0'

answered Mar 4, 2017 at 10:14

Sarvex

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2 Comments

Sarvex Over a year ago

Update the gradle in the configuration and the error.

Renjith Krishnan Over a year ago

Error:Cause: unable to find valid certification path to requested target. This error I got when the gradle Sync

Crythephoenix · Accepted Answer · 2018-08-21 21:32:00Z

Like a noob!

I was getting a nightmare with this and forgot that i've recently installed a new AV (Kaspersky)

So another solution is: Disable your AV or add exclusions to your AV firewall or proxy

hope it helps to save some time.

D-rk · Accepted Answer · 2018-09-16 10:35:16Z

For me this worked:

buildscript { repositories { maven { url "http://jcenter.bintray.com"} maven { url 'https://maven.google.com/' name 'Google' } } ... } allprojects { repositories { mavenCentral() jcenter{ url "http://jcenter.bintray.com/" } maven { url 'https://maven.google.com/' name 'Google' } } }

Minion · Accepted Answer · 2019-09-10 17:26:41Z

If you are using kotlin and its showing this error please update your kotlin gradle plugin in project level build.gradle.
The certificate expired case : Go to certificates in settings and check if any certificate is expired if any, delete that certificate and clean and sync it will work.
Dependencies- unable to find case : In this case delete that dependency and sync the project then add the dependency again with some another version(downgraded version) and sync the project it will work.

These three cases i faced and wasted so much time, hope this will help someone and save someones day.

Thankyou - happy coding**:-)**

Avinash · Accepted Answer · 2020-11-26 11:15:34Z

Run bellow command in Android studio terminal after opening the same project. It worked for me.

On Windows:

gradlew cleanBuildCache

On Mac or Linux:

./gradlew cleanBuildCache

This worked for me. thank you so much! I first followed Minion point-2 and then your command.

Amarnath J'nathan · Accepted Answer · 2018-04-20 16:54:24Z

Just try to build the same project through command prompt and if the download dependencies happen successfully, go to settings in you IntelliJ and map the gradle to point gradle in your system and build should happen fine.

Satyam Anand · Accepted Answer · 2018-05-10 13:45:00Z

The error is is because of your network restriction that does not allow to sync the project from "http://jcenter.bintray.com", No need play with the IDE (Android Studio).

Ajinkya Kalaskar · Accepted Answer · 2019-02-25 06:54:58Z

0

change dependencies from compile to Implementation in build.gradle file

answered Feb 25, 2019 at 6:54

Ajinkya Kalaskar

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rajkabbur · Accepted Answer · 2019-10-20 16:43:00Z

0

Switching to the smartphone network & disabling the web security tool installed on my computer solved the problem.

answered Oct 20, 2019 at 16:43

rajkabbur

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1 Comment

Olórin Over a year ago

This is a local solution, as there are people working in companies where they cannot disable security tool installed on their computer.

Dev · Accepted Answer · 2020-02-02 08:36:23Z

This issue is related to network connectivity if not solved adding maven { url "http://jcenter.bintray.com"} at project level.

Just try to change your network and sync the gradle, should fix this issue for sure.

jayesh karma · Accepted Answer · 2021-02-17 05:52:58Z

I got the same issue and I fixed it by changing my firewall setting or you can switch to another network

reasons behind it

when we are running our project run command its configure and check for exiting packages and make proceed to download the new or required package and the packages are stored on non-secure IP/hosting so your firewall will try to protect you and you will get these errors

Dharman · Accepted Answer · 2021-03-27 02:56:58Z

Those who tried all the above answers and didn't help, or lazy to follow those steps, should try this quick-setting first.

Go to Android Studio -> Appearance & Behavior -> System Settings -> HTTP Proxy -> Select Auto-detect proxy settings
Go to Android Studio -> File -> Sync Project with Gradle File

Yılmaz Durmaz · Accepted Answer · 2024-09-14 13:43:55Z

for a quick fix without checking what else is underlying, here is an answer from gradle.org forums that worked for me

https://discuss.gradle.org/t/unable-to-build-a-java-project-due-to-certificates/46993/2

Please note that this might not be what you want. in my case, I was just trying to make it compile and ignoring any complications.

in case discussion gets deleted, here is the short version.

I have this in my ~/.gradle/gradle.properties on my mac:

systemProp.javax.net.ssl.trustStore=/dev/null systemProp.javax.net.ssl.trustStoreType=KeychainStore systemProp.java.security.KeyStore=KeychainStore

Here’s the same thing for Windows:

systemProp.javax.net.ssl.trustStore=NUL systemProp.javax.net.ssl.trustStoreType=Windows-ROOT

yoAlex5 · Accepted Answer · 2025-01-10 15:24:17Z

IntelliJ IDEA error

sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

Java doesn't trust self-signed certificate, that is why you should add it manually into Java cecrets

Download certificate. You can use browser or Keychain Access app on Mac. Right click -> Export
Import certificate into cecrets. Find appropriate cecrets(this file is unique for every JRE)

e.g.

sudo keytool -import -alias MyCertAlias -keystore "/Library/Java/JavaVirtualMachines/temurin-21.jdk/Contents/Home/lib/security/cacerts" -file "/Users/user/Downloads/MyRootCA.cer"

By default cecrets's pass is changeit

Additionally:

You can use KeyStore Explorer app to import sertififate, but it can throw error access denied. But at least you can use it to check if cecrets contains your certificate
You can import certificate using IDE UI

Settings... -> Tools -> Server Certificates -> +

[Signature, Certificate]

Irshad · Accepted Answer · 2019-04-02 06:00:33Z

-2

Most of the times when I face this issue. I remove replace https with http. It solves the issue.

answered Apr 2, 2019 at 6:00

Irshad

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3 Comments

Zoe - Save the data dump Over a year ago

Insecure connections aren't a good idea when you have options

Irshad Over a year ago

I agree, But the firewall setting is taken care by the IT department, which I have no control on. What would u suggest as an alternative?

Zoe - Save the data dump Over a year ago

Contacting the IT department and telling them to create/use a firewall that doesn't block basic dev tools

THIS USER NEEDS HELP · Accepted Answer · 2020-08-25 22:05:26Z

-2

Simple Invalidate/Restart fixed it for me. No other actions were taken

answered Aug 25, 2020 at 22:05

THIS USER NEEDS HELP

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