diff --git a/services/mediaresourcemanager/ResourceManagerService.cpp b/services/mediaresourcemanager/ResourceManagerService.cpp
index f718406..9c81f89 100644
--- a/services/mediaresourcemanager/ResourceManagerService.cpp
+++ b/services/mediaresourcemanager/ResourceManagerService.cpp
@@ -164,7 +164,7 @@
 static String8 getString(const std::vector<T>& items) {
     String8 itemsStr;
     for (size_t i = 0; i < items.size(); ++i) {
-        itemsStr.appendFormat("%s ", toString(items[i]).string());
+        itemsStr.appendFormat("%s ", toString(items[i]).c_str());
     }
     return itemsStr;
 }
@@ -272,7 +272,7 @@
                 "can't dump ResourceManagerService from pid=%d, uid=%d\n",
                 AIBinder_getCallingPid(),
                 AIBinder_getCallingUid());
-        write(fd, result.string(), result.size());
+        write(fd, result.c_str(), result.size());
         return PERMISSION_DENIED;
     }
 
@@ -325,7 +325,7 @@
             const ResourceList& resources = info.resources;
             result.append("        Resources:\n");
             for (auto it = resources.begin(); it != resources.end(); it++) {
-                snprintf(buffer, SIZE, "          %s\n", toString(it->second).string());
+                snprintf(buffer, SIZE, "          %s\n", toString(it->second).c_str());
                 result.append(buffer);
             }
         }
@@ -339,7 +339,7 @@
     result.append("  Events logs (most recent at top):\n");
     result.append(serviceLog);
 
-    write(fd, result.string(), result.size());
+    write(fd, result.c_str(), result.size());
     return OK;
 }
 
@@ -417,7 +417,7 @@
 }
 
 Status ResourceManagerService::config(const std::vector<MediaResourcePolicyParcel>& policies) {
-    String8 log = String8::format("config(%s)", getString(policies).string());
+    String8 log = String8::format("config(%s)", getString(policies).c_str());
     mServiceLog->add(log);
 
     std::scoped_lock lock{mLock};
@@ -490,7 +490,7 @@
     int64_t clientId = clientInfo.id;
     const std::string& name = clientInfo.name;
     String8 log = String8::format("addResource(pid %d, uid %d clientId %lld, resources %s)",
-            pid, uid, (long long) clientId, getString(resources).string());
+            pid, uid, (long long) clientId, getString(resources).c_str());
     mServiceLog->add(log);
 
     std::scoped_lock lock{mLock};
@@ -552,7 +552,7 @@
     int32_t uid = clientInfo.uid;
     int64_t clientId = clientInfo.id;
     String8 log = String8::format("removeResource(pid %d, uid %d clientId %lld, resources %s)",
-            pid, uid, (long long) clientId, getString(resources).string());
+            pid, uid, (long long) clientId, getString(resources).c_str());
     mServiceLog->add(log);
 
     std::scoped_lock lock{mLock};
@@ -679,7 +679,7 @@
     int32_t callingPid = clientInfo.pid;
     std::string clientName = clientInfo.name;
     String8 log = String8::format("reclaimResource(callingPid %d, uid %d resources %s)",
-            callingPid, clientInfo.uid, getString(resources).string());
+            callingPid, clientInfo.uid, getString(resources).c_str());
     mServiceLog->add(log);
     *_aidl_return = false;