Could not find tools jar Please check that C Program Files Java jre1 8 0 151 contains a valid JDK installation

Question

Even though I manually configured JDK project structure file Project structure it still shows this error  FAILURE  Build failed with an exception    What went wrong  Execution failed for task   sample compileReleaseJavaWithJavac       Could not find tools jar  Please check that C  Program Files Java jre1 8 0 151 contains a valid JDK installation     I m confused why it is still looking for C  Program Files Java jre1 8 0 151 instead of JDK

User · Answer

This happens when JDK and JRE have different versions installed on your system  Update the JDK with the matching version of JRE  Also verify that System variable path has bin value from same JDK version

User · Answer

The problem is your gradle build is not finding the JAVA HOME path or JDK folder  So  you could declare the path in gradle properties like org gradle java home C  Program Files Java  or yours jdk folder name    Use this guide for using gradle properties   Or  and I prefer this solution  include JAVA HOME path in systmem variables and restart CMD

User · Answer

What worked for me was updating Android Studio and updating JAVA HOME and ANDROID HOME environment variables  I believe it was caused due to the fact that I updated Java Version  through updater  but did not update jdk

User · Answer

In my case  i had installed only the JRE so you could check to make sure you actually have a valid jdk  if not i advise you to uninstall whatever java is installed and download a correct jdk from here  the jdk comes with a jre so no need to download anything else  after set the environment variable and your done

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ERROR  Could not find tools jar  Please check that C  Program Files Java jre1 8 0 121 contains a valid JDK installation   Copy tools jar from C  Program Files Java jdk1 8 0 121 lib to C  Program Files Java jre1 8 lib   It s resolved the problem now

User · Answer

Just had this happen to me   Apparently Java s automatic updater installed and configured a new version of the JRE for me  while leaving the old JDK intact  So even though I did have a JDK  it didn t match the currently  active  JRE  which was causing the error   Download a matching version of the JDK to the JRE you currently have installed   In OP s case 151  That should do the trick

User · Answer

you have to added jdk path org gradle java home C  Program Files Java jdk1 8 0 102 to gradle properties make sure you write your jdk version which installed in you system

User · Answer

Please make sure both JDK and jre are on same version for example if you have JRE version 1 8 0 201 then JDK version should be  1 8 0 201 version

User · Answer

My issue was two-fold    I had the JRE installed  but not the JDK  I did not have a JAVA HOME environment variable set    Note  I am using Fedora Linux   To resolve the first issue  I followed these instructions  To resolve the second  I merely added the following line to my    bashrc file   export JAVA HOME  usr lib jvm java    I had to restart my IDE and terminals to ensure the change to the    bashrc took affect

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My error was solved by uninstalling all java updates and java from control panel and reinstalling JDK

User · Answer

I had the same problem and fixed it like this    Install the JDK from the Oracle website with the same version number as the JRE if you didn t already    Furthermore add JAVA HOME to the environment variables of Windows    Restart your terminal or development environment to load the new JAVA HOME value

User · Answer

What I did was download the JDK from here  start a windows command prompt  windows r CMD  and set the environment variable JAVA HOME to c  Program Files Java jdk-14 with   set JAVA HOME  c  Program Files Java jdk-14    Then run what I wanted to run  It failed afterwards  but on a different issue

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This can occur if your path is too long as well  I solved this by moving my java install to   C  Java jdk1 8 0 211

User · Answer

Solution 1   Go to your android folder  gt  Gradle properties  gt  add your jdk path   Clean and rebuild then it is done     For Example Purpose Only org gradle java home  Library Java JavaVirtualMachines jdk1 8 0 251 jdk Contents Home   Solution 2 At last  here I found the solution   Add jdk path to gradle properties file and did a rebuild    This will also solve your error    Here is all Solution could not find tools jar

User · Answer

What I did was I uninstalled Java from my PC  and then downloaded and installed JDK again from Oracle  After this it worked perfectly  I think the problem was because the JRE and JDK update version were different from each other

User · Answer

for tools jar is in C  Program Files Java jdk1 8 0 201 lib  I changed installed jre in eclipse  Windows- Preferences- Java- installed JREs and make default jre to point to where your jdk is

User · Answer

In Eclipse  Right click Project --  Java Build Path --  Libraries    Remove the JRE Click on Add Library --  JRE System Library -- Next -- Alternate JRE --  installed JRE --  Add JDK and select and Apply

User · Answer

At last  here I found the solution   I added jdk path org gradle java home C   Program Files  Java  jdk1 8 0 144 to gradle properties file and did a rebuild  It works now

[java] Could not find tools.jar. Please check that C:\Program Files\Java\jre1.8.0_151 contains a valid JDK installation

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