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First cmd switch to Android-sdk-windows\tools\lib, find Find_java.bat

Turn on Echo: rem @echo off, then run Find_java.bat, if the output set java_exe= does not match the JDK installation path, you need to check the environment variables Java_ Java.exe is set correctly in home and path, and its logic is Android/platform/sdk/find_java/src/source/find_java_ The function Findjavainenvpath in lib.cpp:

View Code//Search Java.exe in the environmentintFindjavainenvpath (CPath *outjavapath, bool isjdk,intMinVersion) {setlasterror (0);Const Char* Envpath = getenv ("Java_home");if(Envpath! = NULL) {CPath P (envpath);if(!isjdk | | isjdkpath (P)) {intv = checkbinpath (&p);if(v >= minversion) {if(Gisdebug) {fprintf (stderr, "Java%d found via java_home:%s\n", V, P.cstr ()); } *outjavapath = P;//As an optimization for runtime, if we find a suitable Java                //version in Java_home we won ' t waste time looking at the PATH.                returnV }        }    }intcurrversion = 0; Envpath = getenv ("PATH");if(!envpath)returnCurrversion;//Otherwise look at the entries on the current path.    //If We find more than one, keep the one with the highest version.carray<cstring> *paths = CString (Envpath). Split (';'); for(inti = 0; I < paths->size (); i++) {CPath P ((*paths) [I].cstr ());if(Isjdk &&!isjdkpath (p)) {Continue; }intv = checkpath (&p);if(v >= minversion && v > Currversion) {if(Gisdebug) {fprintf (stderr, "Java%d found via env PATH:%s\n", V, P.cstr ());            } currversion = V;        *outjavapath = p; }} delete paths;returnCurrversion;}

It can be seen that the logic is to look for java_home in the environment variable, and if not, to find the highest version of Java.exe in Path, of course, the minimum version of Java.exe is 6.1.

If Java.exe is set correctly in the environment variable, check whether the batch find_java.bat is wrong, because the SDK Manager.exe source android/platform/sdk/sdklauncher/src/source/ SDKLAUNCHER.C shows that it is called Android-sdk-windows\tools\android.bat

View CodeintSdk_launcher () {intresult = 0;    Startupinfo startup;    Process_information pinfo; CHAR Program_dir[max_path];intRET, POS; ZeroMemory (&pinfo,sizeof(pinfo)); ZeroMemory (&startup,sizeof(startup)); STARTUP.CB =sizeof(startup);    Startup.dwflags = Startf_useshowwindow; Startup.wshowwindow = sw_hide|sw_minimize;/ * Get path of current program, to switch dirs here when executing the command. * /ret = GetModuleFileName (NULL, Program_dir,sizeof(Program_dir));if(ret = = 0) {Display_error ("Failed to get program ' s filename:");    result = 1; }Else{/* Remove the last segment to keep only the directory. * /pos = ret-1; while(pos > 0 && program_dir[pos]! = ' \ \ ')        {--pos;    } Program_dir[pos] = 0; }if(!result) {dprintf ("Program dir:%s\n", Program_dir);//SDK Manager.exe is installed by the Windows Installer just below        //The Tools directory and needs to access Tools\android.batret = CreateProcess (NULL,/ * Program path * /"Tools\\android.bat SDK",/ * command-line * /Null/ * Process handle is not inheritable * /Null/ * Thread handle is not inheritable * /TRUE,/ * Yes, inherit some handles * /Create_no_window,/ * We don ' t want a console * /Null/ * Use Parent ' s environment block * /Program_dir,/ * Use parent ' s starting directory * /&startup,/ * Startup info, i.e STD handles * /&pinfo);if(!ret) {dprintf ("CreateProcess returned%d\n", ret);//In the ADT bundle, SDK Manager.exe are located in the SDK folder            //and needs to access Sdk\tools\android.batret = CreateProcess (NULL,/ * Program path * /"Sdk\\tools\\android.bat SDK",/ * command-line * /Null/ * Process handle is not inheritable * /Null/ * Thread handle is not inheritable * /TRUE,/ * Yes, inherit some handles * /Create_no_window,/ * We don ' t want a console * /Null/ * Use Parent ' s environment block * /Program_dir,/ * Use parent ' s starting directory * /&startup,/ * Startup info, i.e STD handles * /&pinfo); } dprintf ("CreateProcess returned%d\n", ret);if(!ret) {Display_error ("Failed to execute Tools\\android.bat:");        result = 1; }} dprintf ("cleanup.\n");returnResult;}

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