diff -uNr boinc/lib/gui_rpc_client.cpp boinc.mod/lib/gui_rpc_client.cpp
--- boinc/lib/gui_rpc_client.cpp	2022-07-18 18:32:21.000000000 +0800
+++ boinc.mod/lib/gui_rpc_client.cpp	2022-09-11 21:07:05.339844109 +0800
@@ -416,7 +416,7 @@
     char msg_buf[1024];
     FILE* f = fopen(GUI_RPC_PASSWD_FILE, "r");
     if (!f) {
-#if defined(__linux__)
+#if defined(__linux__) && !defined(__ANDROID__)
 #define HELP_URL "https://boinc.berkeley.edu/gui_rpc.php"
         char path[MAXPATHLEN];
         if (errno == EACCES) {
